OK Instruments
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| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | OK-ZTH-1440.369 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH (at 20–85 °C) |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass (350 W thermal dissipation) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-ZTH-1445 |
| Price | USD 21,000 (FOB Guangdong) |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH at 20–85 °C |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min (selectable) |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass block |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | OK-ZTH-390.1688 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH (at 20–85 °C) |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass, 350 W internal heat dissipation |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-ZTH-390 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH at 20–85 °C |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass with 350 W internal heat dissipation |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-ZTH-390.147 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH (at 20–85 °C) |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass, 350 W internal heat dissipation |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-ZTH-390.163 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH at 20–85 °C |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass with 350 W internal heat dissipation |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-ZTH-390.168 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH at 20–85 °C |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass, 350 W internal heat dissipation |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-ZTH-390.231 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH (at 20–85 °C) |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass block, 350 W internal heat dissipation |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | OK-ZTH-390.369 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH at 20–85 °C |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass, 350 W thermal dissipation |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-ZTH-512 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH at 20–85 °C |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass, 350 W thermal dissipation |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | OK-ZTH-512.000 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH at 20–85 °C |
| Temperature Ramp Rates | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass (350 W thermal dissipation) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-ZTH-512.13 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH at 20–85 °C |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass block |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-ZTH-512.165 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH at 20–85 °C |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity & Stability | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass block with 350 W internal heat dissipation |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-ZTH-512.1688 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH at 20–85 °C |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass, 350 W internal heat dissipation |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-ZTH-512.23 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH (at 20–85 °C) |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass block, 350 W internal heat dissipation |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-ZTH-512.256 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH (at 20–85 °C) |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass, 350 W thermal dissipation |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-ZTH-512.26 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH at 20–85 °C |
| Temperature Ramp Rates | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass, 350 W internal heat dissipation |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | OK-ZTH-516 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH at 20–85 °C |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass (350 W thermal dissipation) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | OK-ZTH-528 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH (at 20–85 °C) |
| Temperature Ramp Rate | 5 / 10 / 15 °C/min |
| Temperature Uniformity | ≤ ±0.5 °C |
| Standard Load Capacity | 15 kg aluminum mass, 350 W internal heat dissipation |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | KS-TH-150 |
| Temperature Range | −70 °C to +150 °C |
| Refrigeration System | Cascade Compressor-Based with Optional Liquid Nitrogen Assist |
| Explosion-Proof Design | Standard (Non-Explosion-Proof) |
| Temperature Fluctuation | ±0.5 °C |
| Temperature Uniformity | ±2.0 °C |
| Temperature Deviation | ±2.0 °C |
| Heating Rate (Empty Load) | ≤60 min (−70 °C → +150 °C) |
| Cooling Rate (Empty Load) | ≤45 min / ≤60 min / ≤80 min (depending on target temperature transition) |
| Internal Chamber Dimensions (W×H×D) | 500 × 600 × 500 mm |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM/ODM Producer |
| Country of Origin | China |
| Model | KS-TH-150 |
| Price | USD 14,200 (FOB Guangdong) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | KS-TH-150 |
| Price | USD 14,200 (FOB Guangdong) |
| Temperature Range | −70 °C to +150 °C |
| Standard Ramp Rate | 10 °C/min (average, empty chamber, per IEC 60068-3-11) |
| Optional Ramp Rates | 5 °C/min, 15 °C/min, or 25 °C/min (configurable with dual-stage mechanical cascade or LN₂-assisted cooling) |
| Internal Chamber Volume | 150 L |
| Control Accuracy | ±0.3 °C (uniformity), ±0.5 °C (fluctuation) |
| Compliance | IEC 60068-2-14, IEC 60068-3-11, GB/T 2423.22, MIL-STD-810H Method 503.5 |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | KS-TH-158 |
| Price | USD 8,200 (FOB Guangdong) |
| Temperature Range | -70°C to +180°C |
| Max. Ramp Rate | 25°C/min (empty load, -40°C ↔ +85°C, linear profile) |
| Uniformity | ≤ ±2.0°C (at steady state) |
| Stability | ≤ ±0.5°C (center point, short-term) |
| Control System | 10.1" color touchscreen PLC-based controller with predictive PID algorithm |
| Refrigeration | Dual-stage cascade compression + liquid nitrogen (LN₂) assist |
| Heating | High-power tubular heaters in optimized air duct |
| Airflow | Vertical top-down forced convection, ≥3.5 m/s average velocity |
| Internal Chamber | SUS304 stainless steel |
| Insulation | 150 mm high-density polyurethane foam (λ ≤ 0.022 W/m·K) |
| Viewing Window | Triple-layer heated anti-frost glass |
| Test Port | Φ100 mm, insulated & sealed |
| Compliance | Designed per IEC 60068-2-14, GJB 150.5A, and MIL-STD-810H environmental test methodology frameworks |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | KS-TH-225 |
| Price | ¥78,000 |
| Temperature Range | -70°C to +150°C |
| Refrigeration Method | Cascade Compressor System (Dual-Stage) |
| Explosion-Proof Design | Standard (Non-Explosion-Proof) |
| Temperature Fluctuation | ±0.5°C |
| Temperature Deviation | ±2.0°C |
| Temperature Uniformity | ±2.0°C |
| Heating Rate | ≤60 min (from -40°C to +85°C) |
| Cooling Rate | ≤45 min / ≤60 min / ≤80 min (model-dependent cooling profiles) |
| Internal Chamber Dimensions (W×H×D) | 500 × 750 × 600 mm |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | KS-TH-225 |
| Temperature Range | −70 °C to +150 °C |
| Ramp Rate | Up to 25 °C/min (standard configuration) |
| Chamber Type | Single-zone integrated design |
| Compliance | GB/T 2423.22 (IEC 60068-2-14), MIL-STD-810H Method 503.7, JESD22-A104, ISO 16750-4, GJB 150A-2009 |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic (China) |
| Model | KS-TH-225.0 |
| Price | USD 7,000 (FOB Guangdong) |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM/ODM Producer |
| Country of Origin | China |
| Model | KS-TH-408 |
| Price | USD 14,200 (FOB Guangdong) |
| Temperature Range | -70°C to +180°C |
| Ramp Rate | Up to 15°C/min (linear segment, unloaded) |
| Internal Volume | 408 L |
| Control System | 10.4" Color Touchscreen PLC Controller with Programmable Ramp/Soak/Cycle Profiles |
| Refrigeration | Cascade Dual-Stage Compressor System |
| Inner Chamber Material | SUS304 Stainless Steel |
| Safety Protections | Over-Temperature, Over-Current, Leakage Current, Fan Overheat, Compressor High-Pressure & Overload Protection |
| Compliance | Designed per ISO 16750-4, GB/T 2423.22, GJB 150A-2009 Environmental Test Standards |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | KS-TH-408 |
| Price | USD 2,650 (FOB Guangdong) |
| Temperature Range | −60 °C to +150 °C |
| Heating Rate (empty) | ≤50 min (−60 °C → +150 °C) |
| Cooling Rate (empty) | ≤55 min (+30 °C → −60 °C) |
| Temp. Uniformity | ±1 °C |
| Temp. Stability | ±0.5 °C |
| Temp. Deviation | ±1 °C |
| Stabilization Time | ≤10 min |
| Humidity Range | 20–98% RH |
| Humidity Uniformity | ±2% RH |
| Humidity Stability | ±2% RH |
| Humidity Deviation | ±2.5% RH |
| Load Capacity | ≤30 kg |
| Refrigerant | R404A / R23 |
| Compressor | Imported Tecumseh (France) |
| Insulation | 100 mm PU foam + high-density glass fiber |
| Viewing Window | Heated double-layer tempered glass with interior LED lighting |
| Test Ports | Two × Φ50 mm (left side & top) |
| Construction | Interior – SUS304 stainless steel |
| Water Supply | Front-mounted pull-out reservoir with optional auto-refill + inline water filtration |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | KS-TH-408 |
| Price | USD 2,700 (FOB Guangdong) |
| Internal Dimensions (W×H×D) | 600×850×800 mm |
| External Dimensions (W×H×D) | 1850×2500×2750 mm |
| Temperature Range | −70°C to +150°C |
| Humidity Range (optional) | 20–98% RH |
| Rapid Temperature Change Range | −45°C to +85°C |
| Rapid Temperature Change Accuracy | ±3.0°C |
| Ramp Rates (selectable linear/non-linear) | 5–30°C/min (A–F variants) |
| Temperature Resolution | 0.1°C |
| Humidity Resolution | 0.1% RH |
| Temperature Uniformity | ±2.0°C |
| Humidity Uniformity | ±3.0% RH |
| Temperature Control Accuracy | ±0.5°C |
| Humidity Control Accuracy | ±2.5% RH |
| Refrigeration System | Dual-stage cascade with French Tecumseh hermetic compressors |
| Cooling Method | Water-cooled |
| Inner Chamber Material | SUS304 stainless steel |
| Outer Chamber Material | Cold-rolled steel with epoxy-powder coating |
| Insulation | High-density polyurethane foam (CFC-free) |
| Safety Protections | Compressor overheat/overpressure protection, high/low refrigerant pressure switches, over-temperature/over-humidity cut-off, fuse protection, water shortage alarm, fault diagnostics display |
| Compliance | GB 11158–2006, GB/T 2423.1–2001 (Test A), GB/T 2423.2–2001 (Test B), GB/T 2423.3–1993 (Test Ca), GB/T 5170.2–1996, GB/T 5170.5–1996 |
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | KS-TH-408(A–F) |
| Internal Dimensions (W×H×D) | 60×85×80 cm |
| External Dimensions (W×H×D) | 165×195×155 cm |
| Temperature Range | −70 °C to +150 °C (configurable by variant A–F) |
| Humidity Range | 5–98% RH (standard: 20–98% RH) |
| Temperature Resolution/Accuracy | 0.1 °C / ±2.0 °C |
| Humidity Resolution/Accuracy | 0.1% RH / ±3.0% RH |
| Ramp Rate | Programmable, continuous control from 1 °C/min to 15 °C/min (typical range) |
| Refrigeration System | Twin-stage cascade refrigeration with Tecumseh (France) compressors and eco-friendly refrigerants R-404A/R-507 |
| Control Interface | LCD touchscreen controller with multi-segment program editing, slope (ramp) and step (quick) temperature/humidity profiles |
| Compliance | Designed per IEC 60068-2-1, IEC 60068-2-2, IEC 60068-2-14, MIL-STD-810G (thermal shock), and supports GLP/GMP audit trails when integrated with optional data logging software |