Gas Leak Alarm Device
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| Brand | ABB |
|---|---|
| Origin | USA |
| Model | LGR H2S/NH3 |
| Measurement Principle | Cavity Ring-Down Spectroscopy (CRDS) |
| Detection Limits (1σ, 1 s) | NH₃: 1.5 ppb, H₂S: 30 ppb |
| Measurement Ranges | NH₃: 2–10,000 ppb (operational up to 200 ppm), H₂S: 30 ppb–50 ppm (operational up to 1,000 ppm), H₂O: 100–70,000 ppm (condensation-free) |
| Response Time | <1 s (T₉₀) |
| Power Consumption | ≤60 W |
| Weight | 15 kg |
| Power Options | AC 100–240 V or DC 12–28 V |
| Environmental Operating Range | −10 to +45 °C, 0–95% RH (non-condensing) |
| Compliance | Designed for field-deployable GLP-compliant operation |
| Brand | AIRSENSE |
|---|---|
| Origin | Germany |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | GDA-FR |
| Pricing | Available Upon Request |
| Brand | Bigdipper |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | WBD5-CWA-MG02 |
| Detection Principle | Electrochemical & Metal Oxide Semiconductor (MOS) Sensor Array |
| Target Analytes | Organophosphorus agents (GA, GB, GD, GF, VX, VR, etc.), Mustard gas (HD), Lewisite (L), Blister agents (HN-1, HN-2, HN-3), Blood agents (HCN, CK), Nerve agents (G-series, V-series), Riot control agents (CN, CS, CR, DM, CN-PS), and common industrial toxics (Cl₂, H₂S, CO, CH₄, gasoline vapors) |
| Detection Range | 0.02–100 ppm (agent-specific) |
| Response Time | <10 ms |
| Accuracy | ≤±5% FS (toxic agents), ≤±0.5% (O₂) |
| Repeatability | ≤1% FS |
| Output Signal | 4–20 mA / 0–20 mA |
| Operating Voltage | 12–24 VDC (sensor module) |
| Environmental Operating Range | –20 °C to +40 °C, 0–95% RH, 86–106 kPa |
| Enclosure Rating | Ex ia IICT6 Gb (Intrinsically Safe for Zone 0/1 hazardous areas) |
| Weight | ≤5 kg |
| Continuous Operation | 24/7 |
| Sensor Lifetime | 12–24 months (12-month warranty against manufacturing defects) |
| Brand | Eranntex |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | MS400-CH4 |
| Pricing | Upon Request |
| Brand | Eranntex |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | TH-2000-C-C2H₆ |
| Detection Principle | Tunable Diode Laser Absorption Spectroscopy (TDLAS) |
| Target Gas | Ethane (C₂H₆) |
| Measurable Gases (Optional) | NOₓ, NO, NO₂, O₂, SO₂ |
| Operating Temperature Range | −40 °C to +70 °C |
| Enclosure Rating | IP66 |
| Display | 7-inch TFT capacitive touchscreen |
| Output Signals | 4–20 mA, RS485, dry contact alarms |
| Communication Options | DTU (GPRS), Ethernet, optional MQTT/HTTP API |
| Sampling Method | Pump-suction, configurable flow (2–10 L/min) |
| Sampling Distance | Up to 40 m (standard), >70 m with vacuum pump option |
| Sample Conditioning | Dual-stage thermoelectric cooler, 0.5 m stainless steel particulate filter (flanged), automatic condensate drainage |
| Max. Sample Gas Temp. | 600 °C (custom up to 2000 °C) |
| Humidity Tolerance | 0–99 % RH (pre-conditioned) |
| Data Storage | Optional 16 GB SD card or internal 100,000-record buffer |
| Brand | FPI |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | GC-1010 |
| Pricing | Available Upon Request |
| Channel Configurations | 10-channel (GC-1010) / 2-channel (GC-1010-C) |
| Power Supply Output | 24 VDC active output (1 channel) |
| Display | LCD + high-brightness LED indicators |
| Communication Interfaces | RS-485 and Ethernet |
| Signal Input Compatibility | 2-wire and 3-wire toxic & combustible gas detectors |
| Alarm Logic | Multi-sensor intelligent voting algorithm |
| Data Acquisition | Synchronized multi-channel sampling |
| Brand | FPI |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Origin | Domestic (China) |
| Model | GC-1020 |
| Pricing | Upon Request |
| Channel Capacity | 10-channel |
| Display | Dual-mode — 10-digit high-brightness LED + LCD |
| Input Compatibility | 2-wire & 3-wire toxic/combustible gas sensors |
| Communication | RS485 (Modbus RTU standard), optional Ethernet interface |
| Analog Output | Optional 10-channel 4–20 mA |
| Power Output | 1-channel 24 VDC active output |
| Brand | FPI |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | GC-3010 |
| Pricing | Available Upon Request |
| Brand | FPI |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | Manufacturer |
| Product Origin | Domestic (China) |
| Model | GC-3020 |
| Pricing | Upon Request |
| Origin | Zhejiang, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Model | GT-1030 |
| Pricing | Available Upon Request |
| Brand | Korno |
|---|---|
| Model | MOT500-CL2 |
| Detection Gas | Chlorine (Cl₂) |
| Sensor Type | Imported electrochemical sensor |
| Measurement Range | 0–10 / 20 / 50 / 100 / 200 ppm (selectable) |
| Resolution | 0.01 ppm (0–100 ppm) |
| Response Time (T90) | ≤20 s |
| Accuracy | ≤±3% FS |
| Linearity Error | ≤±2% FS |
| Zero Drift | ≤±2% FS |
| Recovery Time | ≤30 s |
| Repeatability | ≤±2% FS |
| Explosion Protection Certification | CCRI24.8021X |
| Ingress Protection | IP66 |
| Operating Temperature | −20 to +50 °C |
| Operating Humidity | ≤95% RH (non-condensing) |
| Power Supply | 24 VDC (12–30 VDC) |
| Output Signals | 4–20 mA (16-bit, up to 1 km), RS485 (MODBUS RTU, up to 2 km), 0–5 V / 0–10 V, 2× relay (NO/NC, 125 VAC/0.3 A or 30 VDC/1 A) |
| Installation Options | Wall-mount, threaded pipe (M40×1.5 mm), flow-through |
| Enclosure Material | Die-cast aluminum with sandblasted anodized/fluorocarbon coating |
| Dimensions & Weight | 226 × 215 × 85 mm (L×W×H), 1.7 kg (net) |
| Compliance | GB/T 3836.1–2021, GB/T 3836.2–2021, GB/T 3836.31–2021 |
| Brand | RIKEN KEIKI |
|---|---|
| Origin | Japan |
| Model | SP-230 ML |
| Detection Principle | Hot-Wire Semiconductor Sensor |
| Detection Method | Draw-in (Pump-Assisted) Sampling |
| Gas Types | CH₄ (Natural Gas), i-C₄H₁₀ (LPG) |
| Measurement Range | 10–2000 ppm |
| Alarm Setpoints | 10, 30, 150, 500, 2000 ppm (default: 30 ppm) |
| Alarm Output | Visual (flashing LED), Audible (buzzer) |
| Explosion Protection | Intrinsic Safety, II 2G Ex ic IIC T4 Ga |
| IP Rating | IP67 |
| Operating Temperature | −20 to +55 °C |
| Operating Humidity | ≤95% RH (non-condensing) |
| Battery | 2 × AA alkaline, ~13 h continuous operation (25 °C, no alarm, no light, no Bluetooth) |
| Dimensions | 41 (W) × 186 (H) × 38 (D) mm (excl. probe) |
| Weight | ~220 g (excl. batteries) |
| Wireless | Bluetooth 4.2 Low Energy (BLE) |