Environmental Test Chamber
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| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-3 m³ (Custom Volume) |
| Temperature Range | Selectable Options: 0°C / -20°C / -40°C / -60°C / -70°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±2°C |
| Heating Rate | 1.0–4.0°C/min |
| Construction | Modular PU-insulated sandwich panels with reinforced steel frame |
| Door | Large insulated walk-in door with observation window, anti-frost heater, and safety interlock |
| Refrigeration System | Cascade refrigeration (dual-stage compressors) |
| Air Circulation | High-volume centrifugal fans with optimized ductwork |
| Control System | Programmable PLC-based controller with multi-segment ramp-soak profiles, data logging, and remote monitoring capability |
| Compliance | Designed to support GLP/GMP-aligned validation protocols |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | OK-STH-Volume 9 |
| Temperature Range Options | A: 0°C / B: −20°C / C: −40°C / D: −60°C / E: −70°C |
| Temperature Uniformity | ±3°C |
| Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Internal Dimensions | Custom-engineered per user specifications (D×W×H) |
| Construction | Structural steel frame, double-skin insulated panels (PU core), reinforced walk-in door with anti-frost heating, observation window, and cable/port penetrations |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic |
| Model Code | OK-STH-12.0005m² |
| Internal Dimensions (D×W×H) | 3000 × 2000 × 2000 mm |
| Temperature Range Options | A: 0°C to +85°C |
| B | −20°C to +85°C |
| C | −40°C to +85°C |
| D | −60°C to +85°C |
| E | −70°C to +85°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Producer |
| Country of Origin | China |
| Model | OK-STH-12.0015m² |
| Working Chamber Dimensions (D×W×H) | 3000 × 2000 × 2000 mm |
| Temperature Range Options | A: 0°C / B: −20°C / C: −40°C / D: −60°C / E: −70°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-8.123m² |
| Price | ¥80,000 (RMB) |
| Internal Dimensions (D×W×H) | 2000 × 2000 × 2000 mm |
| Temperature Range Options | A: 0°C / B: −20°C / C: −40°C / D: −60°C / E: −70°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-STH-8.35m² |
| Internal Dimensions (D×W×H) | 2000 × 2000 × 2000 mm |
| Temperature Range Options | A: 0°C / B: −20°C / C: −40°C / D: −60°C / E: −70°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Brand | OK-T |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Temperature Range | RT + 20 °C to 500 °C |
| Control Accuracy | ±0.5 °C |
| Temperature Uniformity | ±1.5 °C |
| Internal Dimensions | 450 × 400 × 400 mm (OK-T-72) / 500 × 600 × 500 mm (OK-T-150) |
| Construction | Inner chamber – SUS304 stainless steel |
| Insulation | Rigid polyurethane foam + fiberglass |
| Heating System | Nickel-chromium far-infrared heaters (2 kW × 1) |
| Controller | PID-based microprocessor controller with Pt100 sensor |
| Safety Features | Independent over-temperature cutoff, leakage current protection, thermal fuse |
| Compliance | GB/T 2423.2 (High-Temperature Test Method B) |
| Brand | OEM |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Model | OK-T-72 |
| Temperature Range | RT + 10°C to 290°C |
| Internal Dimensions (W×H×D) | 450 × 400 × 400 mm |
| External Dimensions (W×H×D) | 650 × 900 × 600 mm |
| Temperature Control Accuracy | ±1.0°C |
| Temperature Uniformity | ±1.5°C |
| Heating System | Dual independent 2 kW nickel-chromium far-infrared heating elements |
| Sensor | PT100 platinum resistance thermometer |
| Controller | LED digital display with intelligent PID algorithm and timer function (0–999 min) |
| Air Circulation | Forced convection via bottom-mounted centrifugal blower with left-side discharge duct |
| Standard Shelving | 3 stainless steel wire mesh shelves (SUS 304) |
| Power Supply | AC 220 V, 50 Hz, 2000 W |
| Safety Features | Leakage current protection, overtemperature alarm, and independent overtemperature cut-off |
| Compliance | Designed and validated per GB/T 2423.2—2008 (IEC 60068-2-2:2007) Environmental Testing — Part 2-2: Tests — Test B: Dry Heat |
| Construction | Interior – galvanized steel plate |
| Brand | OK Instrumentation |
|---|---|
| Temperature Range | RT +10°C to 290°C |
| Internal Dimensions (W×H×D) | 450 × 400 × 400 mm |
| External Dimensions (W×H×D) | 650 × 900 × 600 mm |
| Temperature Control Accuracy | ±1.0°C |
| Temperature Uniformity | ±1.5°C |
| Heating Power | 2000 W (2 kW × 1 far-infrared Ni-Cr alloy heater) |
| Controller | LED digital display, microprocessor-based intelligent temperature controller with timer (0–999 min) |
| Sensor | PT100 platinum resistance thermometer |
| Air Circulation | Bottom-mounted centrifugal blower, vertical upward airflow through side ducts |
| Standard Shelving | 3 stainless steel wire shelves (SUS 304) |
| Power Supply | AC 220 V, 50 Hz |
| Safety Features | Over-temperature alarm, over-temperature cut-off, earth leakage protection |
| Compliance | GB/T 2423.2 (High-Temperature Environmental Testing for Electrical and Electronic Products) |
| Warranty | 12 months |
| Brand | OK Instruments |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Temperature Range | -70°C to +150°C (configurable models) |
| Humidity Range | 20–98% RH (optional 5–98% RH) |
| Temperature Uniformity | ±0.5°C |
| Humidity Uniformity | ±2.5% RH |
| Temperature Fluctuation | ±2°C |
| Humidity Fluctuation | +2–3% RH |
| Resolution | 0.1°C / 0.1% RH |
| Heating Rate | ~4.0°C/min |
| Cooling Rate | ~1.0°C/min |
| Internal Volume | 80 L to 1000 L (6 standard models) |
| Construction Material | SUS#304 Stainless Steel |
| Control System | Touchscreen LCD Controller with English/Chinese UI |
| Compliance | MIL-STD-810G, IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), IEC 60068-2-78 (Steady-State Damp Heat), IEC 60068-2-30 (Cyclic Damp Heat), GB/T 2423.1–2001, GB/T 2423.2–2001, GB/T 2423.4–1993, GJB 150.3–1986, GJB 150.4–1986 |
| Brand | OK Instrumentation (OEM/ODM available) |
|---|---|
| Origin | Imported (Manufactured in Asia under ISO 9001-certified facilities) |
| Supplier Type | Authorized Distributor |
| Temperature Range | -70 °C to +150 °C (configurable models A–D) |
| Humidity Range | 20–98 %RH (optional 5–98 %RH or 10–98 %RH) |
| Temperature Uniformity | ±0.5 °C |
| Humidity Uniformity | ±2.5 %RH |
| Temperature Fluctuation | ±2 °C |
| Humidity Fluctuation | +2–3 %RH |
| Resolution | 0.1 °C / 0.1 %RH |
| Heating Rate | ~4.0 °C/min |
| Cooling Rate | ~1.0 °C/min |
| Construction Material | SUS#304 Stainless Steel |
| Controller | Touchscreen LCD with English/Chinese interface |
| Refrigeration System | Hermetic dual-stage compressor (R404A/R23 eco-refrigerant) |
| Power Supply | AC 380 V ±5 %, 50 Hz ±0.5 Hz, 3-phase 5-wire |
| Compliance | MIL-STD-810G, IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), IEC 60068-2-30 (Cyclic Humidity), GB/T 2423.1–2001, GB/T 2423.2–2001, GB/T 2423.4–1993, GJB 150.3–1986, GJB 150.4–1986 |
| Brand | OK |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Model | Customizable |
| Price | USD 2,600 (FOB) |
| Internal Dimensions (W×H×D, cm) | 40×50×40 to 100×100×100 |
| External Dimensions (W×H×D, cm) | 100×165×100 to 180×200×180 |
| Temperature Range | -70 °C to +150 °C (configurable in four standard tiers) |
| Humidity Range | 20–98 %RH (optional: 5–98 %RH) |
| Temp. Uniformity | ±0.5 °C |
| Humidity Uniformity | ±2.5 %RH |
| Temp. Stability | ±2 °C |
| Humidity Stability | +2–3 %RH |
| Resolution | 0.1 °C / 0.1 %RH |
| Ramp Rate | Heating ~4.0 °C/min |
| Refrigerant | R404A/R23 (ozone-friendly) |
| Construction | Interior & Exterior – SUS#304 stainless steel |
| Viewing Window | Multi-layer laminated tempered glass with conductive ITO film |
| Port | One 50 mm diameter test port (left side) |
| Controller | Full-color touchscreen HMI with English/Chinese language toggle |
| Compliance | MIL-STD-810G (via GJB150.3/4), IEC 60068-2-1 (Cold), -2-2 (Dry Heat), -2-30 (Damp Heat Cycling), GB/T 2423.1–4 |
| Brand | OK |
|---|---|
| Model Range | OK-TH-100, OK-TH-225, OK-TH-500, OK-TH-800, OK-TH-1000 |
| Internal Dimensions (W×H×D) | 1000×1000×1200 mm (OK-TH-1000) |
| External Dimensions (W×H×D) | 2140×1430×1490 mm (OK-TH-1000) |
| Construction | Interior – Mirror-finish SUS#304 stainless steel |
| Insulation | 100 mm polyurethane rigid foam + glass wool composite |
| Door | Single left-hinged door with dual-layer silicone gasket seal |
| Viewing Window | Triple-layer vacuum-insulated glass (300×400×40 mm) with anti-condensation heater |
| Lighting | High-luminance LED interior lamp |
| Test Ports | Two Ø100 mm ports on left side with stainless steel covers and silicone plugs |
| Mobility | Casters with locking bolts |
| Power Supply | AC 380 V, 20.0 kW (OK-TH-1000) |
| Communication Interface | RS-232C (9-pin D-sub) |
| Brand | OK |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Temperature Range | -70°C to +150°C (selectable configurations: 0°C–150°C, -20°C–150°C, -40°C–150°C, -70°C–150°C) |
| Humidity Range | 20–98% RH (optional: 5–98% RH or 10–98% RH) |
| Temperature Uniformity | ±0.5°C |
| Humidity Uniformity | ±2.5% RH |
| Temperature Fluctuation | ±2.0°C |
| Humidity Fluctuation | +2–3% RH |
| Resolution | 0.1°C / 0.1% RH |
| Ramp Rate | Heating ~4.0°C/min |
| Internal Volume Options | 80 L to 1000 L |
| Construction | Interior & Exterior – SUS#304 Stainless Steel |
| Viewing Window | Multi-layer tempered glass with conductive ITO film |
| Port | One Ø50 mm test port (left side) |
| Refrigeration System | Hermetic, low-noise, dual-stage compressors (R404A/R23 refrigerant blend) |
| Controller | Full-color LCD touchscreen, bilingual (English/Chinese), PID algorithm with real-time data logging |
| Power Supply | AC 380 V ±5%, 50 Hz ±0.5 Hz, 3-phase 5-wire |
| Brand | OK |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Temperature Range | -70°C to +150°C (configurable models: 0°C–150°C, -20°C–150°C, -40°C–150°C, -70°C–150°C) |
| Humidity Range | 20–98% RH (optional: 5–98% RH) |
| Temperature Ramp Rate | Up to 4.0°C/min (heating), 1.0°C/min (cooling) |
| Uniformity | ±0.5°C / ±2.5% RH |
| Stability | ±2.0°C / +2–3% RH |
| Resolution | 0.1°C / 0.1% RH |
| Refrigeration System | Twin-stage hermetic compressors (Bitzer), R404A/R23 eco-friendly refrigerants |
| Controller | 7″ TFT true-color LCD touchscreen, bilingual (English/Chinese), fuzzy logic + coupled PID algorithm |
| Data Logging | 1-second sampling resolution |
| Compliance | MIL-STD-810G (GJB 150.3/150.4), IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), IEC 60068-2-30 (Cyclic Damp Heat), GB/T 2423.1–2423.4 |
| Internal Dimensions (W×H×D, cm) | 40×50×40 to 100×100×100 |
| Construction | SUS#304 stainless steel chamber interior & exterior |
| Standard Accessories | One Φ50 mm cable port, two adjustable stainless steel shelves, four casters + four leveling feet |
| Power Supply | AC 380 V ±5%, 50 Hz ±0.5 Hz, 3-phase 5-wire, 2.5 m cable |
| Brand | OK Instruments |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Temperature Range Options | 0–150°C / −20–150°C / −40–150°C / −70–150°C |
| Humidity Range | 20–98% RH (optional: 5–98% RH) |
| Temperature Uniformity | ±0.5°C |
| Humidity Uniformity | ±2.5% RH |
| Temperature Fluctuation | ±2°C |
| Humidity Fluctuation | +2–3% RH |
| Resolution | 0.1°C / 0.1% RH |
| Ramp Rate | Heating ~4.0°C/min |
| Internal Dimensions (W×H×D, cm) | 40×50×40 to 100×100×100 |
| External Dimensions (W×H×D, cm) | 100×165×100 to 180×200×180 |
| Power Supply | AC 380±5 V, 50±0.5 Hz, 3-phase 5-wire |
| Refrigeration System | Dual-stage hermetic scroll compressors (R404A/R23) |
| Controller | Full-color touchscreen HMI with English/Chinese interface |
| Construction | Interior & exterior SUS#304 stainless steel |
| Viewing Window | Multi-layer tempered glass with conductive ITO film |
| Port | One Ø50 mm test port on left side |
| Safety | Over-temperature, over-humidity, compressor overload, phase failure, and door-open alarms with auto power cutoff |
| Brand | OK |
|---|---|
| Model Range | OK-TH-80 / OK-TH-150 / OK-TH-225 / OK-TH-408 / OK-TH-800 / OK-TH-1000 |
| Internal Chamber Dimensions (W×D×H) | 400×500×400 mm to 1000×1000×1000 mm |
| External Dimensions (W×D×H) | 1000×1650×1000 mm to 1800×2000×1800 mm |
| Temperature Range | -70°C to +150°C (selectable sub-ranges: 0°C–150°C, -20°C–150°C, -40°C–150°C) |
| Humidity Range | 20–98% RH (optional: 5–98% RH or 10–98% RH) |
| Temperature Ramp Rate | +4.0°C/min (heat-up), -1.0°C/min (cool-down) |
| Temperature Uniformity | ±0.5°C |
| Humidity Uniformity | ±2.5% RH |
| Temperature Fluctuation | ±2.0°C |
| Humidity Fluctuation | +2–3% RH |
| Resolution | 0.1°C / 0.1% RH |
| Test Port | Ø50 mm (left side) |
| Interior Material | SUS#304 stainless steel |
| Viewing Window | Multi-layer tempered glass with conductive ITO film |
| Controller | 7-inch color touchscreen (English/Chinese interface) |
| Compressor | Hermetic low-noise dual-stage refrigeration system (Tecumseh/Tecumseh-derived, France-sourced) |
| Safety Features | Over-temperature, over-humidity, compressor overload, phase failure, and door-open interlock protection |
| Compliance | MIL-STD-810G, GJB 150.3–1986 (high-temp), GJB 150.4–1986 (low-temp), IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), IEC 60068-2-30 (damp heat cyclic), GB/T 2423.1–2001, GB/T 2423.2–2001, GB/T 2423.4–1993 |
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 2,650 (FOB) |
| Internal Dimensions (W×H×D, cm) | 40×50×40 to 100×100×100 |
| External Dimensions (W×H×D, cm) | 100×165×100 to 180×200×180 |
| Temperature Range | -70 °C to +150 °C (configurable in four grades: A/B/C/D) |
| Humidity Range | 20–98 %RH (optional 5–98 %RH) |
| Temperature Uniformity | ±0.5 °C |
| Humidity Uniformity | ±2.5 %RH |
| Temperature Fluctuation | ±2 °C |
| Humidity Fluctuation | +2–3 %RH |
| Resolution | 0.1 °C / 0.1 %RH |
| Ramp Rate | Heating ~4.0 °C/min |
| Refrigeration System | Hermetic low-noise dual-stage compressor with R404A/R23 eco-friendly refrigerant |
| Controller | Color TFT touchscreen with bilingual (English/Chinese) interface |
| Construction Material | SUS#304 stainless steel (inner & outer chamber) |
| Viewing Window | Multi-layer laminated tempered glass with conductive ITO film |
| Port | One 50 mm diameter test port on left side |
| Accessories | Two-tier SUS#304 shelves, four casters + four leveling feet |
| Power Supply | AC 380 V ±5 %, 50 Hz ±0.5 Hz, 3-phase 5-wire |
| Brand | OK |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 2,600 (FOB) |
| Internal Dimensions (W×H×D, cm) | 40×50×40 to 100×100×100 |
| External Dimensions (W×H×D, cm) | 100×165×100 to 180×200×180 |
| Temperature Range | -70 °C to +150 °C (configurable models A–D) |
| Humidity Range | 20–98 %RH (optional 5–98 %RH) |
| Temperature Uniformity | ±0.5 °C |
| Humidity Uniformity | ±2.5 %RH |
| Temperature Fluctuation | ±2 °C |
| Humidity Fluctuation | +2–3 %RH |
| Resolution | 0.1 °C / 0.1 %RH |
| Ramp Rate | Heating ~4.0 °C/min |
| Refrigeration System | Hermetic low-noise dual-stage compressor with R404A/R23 eco-friendly refrigerants |
| Controller | Color TFT touch-screen interface with English/Chinese language toggle |
| Construction Material | SUS#304 stainless steel (inner & outer chambers) |
| Viewing Window | Multi-layer laminated tempered glass with conductive ITO film |
| Port | One 50 mm diameter test port (left side) |
| Standards Compliance | MIL-STD-810G (Method 501.6, 502.6), IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), IEC 60068-2-78 (Steady-State Humidity), IEC 60068-2-30 (Cyclic Humidity), GB/T 2423.1–2423.4 |
| Brand | OK |
|---|---|
| Model Range | OK-TH-80 / OK-TH-150 / OK-TH-225 / OK-TH-408 / OK-TH-800 / OK-TH-1000 |
| Internal Dimensions (W×H×D, cm) | 40×50×40 to 100×100×100 |
| External Dimensions (W×H×D, cm) | 100×165×100 to 180×200×180 |
| Temperature Range Options | 0–150°C / −20–150°C / −40–150°C / −70–150°C |
| Humidity Range | 20–98% RH (optional: 5–98% RH or 10–98% RH) |
| Temperature Uniformity | ±0.5°C |
| Humidity Uniformity | ±2.5% RH |
| Temperature Fluctuation | ±2.0°C |
| Humidity Fluctuation | +2–3% RH |
| Resolution | 0.1°C / 0.1% RH |
| Heating Rate | ~4.0°C/min |
| Cooling Rate | ~1.0°C/min |
| Refrigeration System | Hermetically sealed, low-noise dual-stage compressor with eco-friendly refrigerants R404A/R23 |
| Controller | LCD touch-screen interface with bilingual (English/Chinese) operation |
| Construction Material | SUS#304 stainless steel interior and exterior |
| Standard Accessories | One Φ50 mm cable port, two adjustable SUS#304 shelves, four casters + four leveling feet |
| Power Supply | AC 380 V ±5%, 50 Hz ±0.5 Hz, 3-phase 5-wire, 2.5 m cable |
| Compliance | MIL-STD-810G (Method 501.6, 502.6), IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), IEC 60068-2-30 (Damp Heat, Cyclic), IEC 60068-2-78 (Damp Heat, Steady State), GB/T 2423.1–2001, GB/T 2423.2–2001, GB/T 2423.4–1993, GJB 150.3–1986, GJB 150.4–1986 |
| Brand | OK Instrumentation |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 2,650 (FOB) |
| Internal Dimensions (W×H×D, cm) | 40×50×40 to 100×100×100 |
| Temperature Range | -70 °C to +150 °C (configurable models) |
| Humidity Range | 5–98 %RH (standard: 20–98 %RH) |
| Temperature Uniformity | ±0.5 °C |
| Humidity Uniformity | ±2.5 %RH |
| Temperature Fluctuation | ±2 °C |
| Humidity Fluctuation | +2–3 %RH |
| Resolution | 0.1 °C / 0.1 %RH |
| Ramp Rate | Heating ~4.0 °C/min |
| Refrigerant | R404A/R23 (ozone-friendly) |
| Construction Material | SUS#304 stainless steel (inner & outer chamber) |
| Control Interface | Color TFT touchscreen controller with English/Chinese language toggle |
| Test Port | One Ø50 mm port (left side) |
| Compliance | MIL-STD-810G, IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), IEC 60068-2-30 (Cyclic Damp Heat), GB/T 2423.1–2001, GB/T 2423.2–2001, GB/T 2423.4–1993, GJB 150.3–1986, GJB 150.4–1986 |
| Brand | OK Instrumentation |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Temperature Range | -70°C to +150°C (selectable configurations: A: 0–150°C |
| B | -20–150°C |
| C | -40–150°C |
| D | -70–150°C) |
| Humidity Range | 20–98% RH (optional: 5–98% RH or 10–98% RH) |
| Temperature Uniformity | ±0.5°C |
| Humidity Uniformity | ±2.5% RH |
| Temperature Fluctuation | ±2.0°C |
| Humidity Fluctuation | +2–3% RH |
| Resolution | 0.1°C / 0.1% RH |
| Ramp Rate | Heating ~4.0°C/min |
| Internal Dimensions (W×H×D, cm) | 40×50×40 to 100×100×100 |
| External Dimensions (W×H×D, cm) | 100×165×100 to 180×200×180 |
| Test Port | Ø50 mm (left side) |
| Construction | Interior & exterior SUS#304 stainless steel |
| Viewing Window | Multi-layer tempered glass with conductive ITO film |
| Refrigeration System | Hermetic, low-noise, dual-stage compressor (R404A/R23) |
| Controller | 7-inch color LCD touch screen, bilingual (English/Chinese) |
| Power Supply | AC 380 V ±5%, 50 Hz ±0.5 Hz, 3-phase 5-wire |
| Brand | OK |
|---|---|
| Origin | China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China-manufactured) |
| Price | USD 14,000 (FOB China, ex-factory |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98% RH (optional: 5–98% RH or 10–98% RH) |
| Rapid Temperature Transition Range | −45 °C to +85 °C or −20 °C to +85 °C |
| Ramp Rates | 5–25 °C/min (configurable) |
| Temperature Uniformity | ±2 °C |
| Temperature Stability | ±0.5 °C |
| Humidity Uniformity | ±3.0% RH (at ≥75% RH) |
| Humidity Stability | ±2.5% RH |
| Interior Material | SUS#304 Stainless Steel |
| Refrigeration System | Hermetic Dual-Stage Compressor with Eco-Friendly Refrigerants (R404A/R23) |
| Controller | Touchscreen LCD with English/Chinese Interface |
| Power Supply | AC 380 V ±5%, 50 Hz ±0.5 Hz, 3-phase 5-wire |
| Brand | OK |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 2,650 (FOB) |
| Internal Dimensions (W×H×D, cm) | 40×50×40 to 100×100×100 |
| External Dimensions (W×H×D, cm) | 100×165×100 to 180×200×180 |
| Temperature Range | -70 °C to +150 °C (configurable models A–D) |
| Humidity Range | 20–98 %RH (optional: 5–98 %RH) |
| Heating Rate | ~4.0 °C/min |
| Cooling Rate | ~1.0 °C/min |
| Temperature Uniformity | ±0.5 °C |
| Humidity Uniformity | ±2.5 %RH |
| Temperature Fluctuation | ±2 °C |
| Humidity Fluctuation | +2–3 %RH |
| Resolution | 0.1 °C / 0.1 %RH |
| Controller | 7-inch color touchscreen, bilingual (English/Chinese) |
| Refrigeration System | Hermetic low-noise dual-stage compressor (R404A/R23) |
| Construction | SUS#304 stainless steel interior & exterior |
| Viewing Window | Multi-layer tempered glass with conductive film |
| Port | One 50 mm diameter test port (left side) |
| Accessories | Two adjustable stainless steel shelves, four casters + four leveling feet |
| Power Supply | AC 380 V ±5 %, 50 Hz ±0.5 Hz, 3-phase 5-wire |
| Brand | OK |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Temperature Range | -70 °C to +150 °C (selectable configurations: A: 0–150 °C |
| B | -20–150 °C |
| C | -40–150 °C |
| D | -70–150 °C) |
| Humidity Range | 20–98 %RH (optional: 5–98 %RH or 10–98 %RH) |
| Temperature Uniformity | ±0.5 °C |
| Humidity Uniformity | ±2.5 %RH |
| Temperature Fluctuation | ±2 °C |
| Humidity Fluctuation | +2–3 %RH |
| Resolution | 0.1 °C / 0.1 %RH |
| Heating Rate | ~4.0 °C/min |
| Cooling Rate | ~1.0 °C/min |
| Internal Dimensions (W×H×D, cm) | 40×50×40 to 100×100×100 |
| External Dimensions (W×H×D, cm) | 100×165×100 to 180×200×180 |
| Refrigeration System | Hermetic dual-stage compressor with eco-friendly refrigerants R404A/R23 |
| Controller | LCD touch-screen interface with bilingual (English/Chinese) support |
| Construction Material | SUS#304 stainless steel |
| Power Supply | AC 380 V ±5 %, 50 Hz ±0.5 Hz, 3-phase 5-wire |
| Compliance | MIL-STD-810G (GJB150.3/150.4), IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), IEC 60068-2-78 (Steady-State Damp Heat), IEC 60068-2-30 (Cyclic Damp Heat), GB/T 2423.1–2423.4 |
| Brand | OK |
|---|---|
| Temperature Range | -70°C to +150°C (model-dependent) |
| Humidity Range | 20–98% RH |
| Temperature Uniformity | ±1.5°C |
| Temperature Stability | ±0.5°C |
| Humidity Uniformity | ±3% RH |
| Humidity Stability | ±2% RH |
| Internal Volume | 80–1000 L |
| Heating Rate (no load) | ~3°C/min |
| Cooling Rate (no load) | ~1°C/min |
| Construction | Stainless steel inner/outer chamber |
| Insulation | Rigid polyurethane foam + glass wool |
| Refrigeration System | Hermetic scroll compressor (TECUMSEH or equivalent), eco-friendly refrigerant (R404A/R507) |
| Controller | TEMI880 color touchscreen PID controller (English/Chinese interface) |
| Compliance | GB/T 2423, IEC 60068, MIL-STD-810D, GJB 150, ISO 16750 |
| Brand | Other Brands |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | OK-TH-100.3 |
| Price | USD 2,650 (FOB Guangdong) |
| Instrument Type | Benchtop |
| Condensation Method | Air-Cooled |
| Temperature Range | −50 °C to +150 °C |
| Humidity Range | 20–98 % RH |
| Temperature Uniformity | ≤ ±2 °C |
| Temperature Fluctuation | ±1 °C (high-temp), ±2 °C (low-temp) |
| Humidity Uniformity | ≤ ±3 % RH |
| Humidity Fluctuation | ±3 % RH |
| Heating Rate | 1.0–3.0 °C/min |
| Internal Chamber Dimensions (W×D×H) | 800 × 600 × 500 mm |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-TH-120 |
| Price | ¥99,000 CNY |
| Internal Dimensions (D×W×H) | 2000 × 2000 × 2000 mm |
| Temperature Range Options | A: 0°C / B: −20°C / C: −40°C / D: −60°C / E: −70°C |
| Temperature Uniformity | ±3°C |
| Temperature Control Accuracy | ±1°C |
| Heating Rate | 1.0–4.0°C/min |
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Model | OK-TH-225 |
| Service Quotation | USD 2,800 (excl. VAT & on-site travel fees) |
| Brand | OEM |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Model | OK-TH-225 |
| Temperature Range | −30 °C to +150 °C |
| Humidity Range | 20–98% RH |
| Compliance | GB/T 5170.2, GB/T 5170.5, GB 2423.1, GB 2423.2, GB 2423.22, GB 10589, GB 10592, GB 11158 |
| Cooling Water Requirement | 10–28 °C, 0.1–0.3 MPa |
| Control Method | PID-based Balanced Temperature & Humidity Control (BTHC) |
| Construction | Full-capillary auto-load-adjustment refrigeration system |
| Interior Volume | 225 L |