Hydrogen Alarm
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| Brand | Eranntex |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | MIC-500S-H2 |
| Detection Principle | Electrochemical / Catalytic Combustion / Infrared / Thermal Conductivity / PID |
| Explosion Protection Rating | Exd IIC T6 Gb |
| IP Rating | IP65 |
| Output Signals | 4–20 mA (3-/4-wire), RS485 (Modbus RTU), Relay Outputs (2 x SPDT), Optional Wireless (GPRS/WiFi/433 MHz) |
| Operating Temperature | −40 °C to +70 °C |
| Humidity Range | 10–95% RH (non-condensing) |
| Display | 1.7″ Color LCD |
| Power Supply | 12–36 VDC |
| Dimensions (L×H×W) | 238 × 210 × 90 mm (with beacon) |
| Weight | 1.8 kg |
| Compliance | GB 15322.1–2019, GB 3836.1–2010, GB 3836.2–2010, CPA Certified |
| Brand | Eranntex |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Manufacturer |
| Origin Category | Domestic |
| Model | MS104K-M |
| Detection Target | H₂ (Hydrogen) |
| Detection Principle | Electrochemical / Catalytic Combustion / Infrared / Thermal Conductivity / PID |
| Resolution | 0.001 ppm (0–10 ppm), 0.01 ppm (0–100 ppm), 0.1 ppm (0–1000 ppm), 1 ppm (>5000 ppm), 0.1%LEL, 0.01%Vol |
| Display | 2-inch LCD |
| Power | Rechargeable 7.4 V / 1400 mAh Li-polymer battery |
| Operating Time | >100 h (diffusion mode, no catalytic sensor) |
| IP Rating | IP68 |
| Explosion Protection | Ex ia IIC T4 Ga |
| Compliance | GB/T 3836.1–2021, GB/T 3836.4–2021, GB/T 50493–2019, GB 15322.3–2019 |
| Data Storage | >200,000 records |
| Communication | Type-C interface (charging & data transfer), optional LoRa / Bluetooth / NB-IoT |
| Dimensions | 90 × 70 × 38 mm (L×W×H) |
| Weight | ~380 g |
| Brand | Eranntex |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | MS400-H2 |
| Detection Gas | Hydrogen (H₂) |
| Detection Principle | Electrochemical (standard for H₂), optional thermal conductivity (TCD) or catalytic combustion for specific configurations |
| Display | 2.31-inch 320×240 color TFT screen |
| Alarm Modes | Visual (LED flash), audible (≥85 dB at 30 cm), vibration |
| Protection Rating | IP65 |
| Explosion Protection | Ex ia II CT4 (intrinsic safety) |
| Power Supply | 3.7 V DC, 4600 mAh polymer lithium battery |
| Operating Temperature | −40 °C to +70 °C |
| Response Time (T90) | ≤20 s |
| Detection Range Options | 0–50 ppm, 0–100 ppm, 0–1000 ppm, 0–100% LEL, or 0–100% vol (custom ranges available) |
| Resolution | 0.01 ppm (0–10 ppm), 0.1 ppm (0–1000 ppm), 0.1% LEL, 0.01% vol |
| Accuracy | ≤±3% FS |
| Linearity | ≤±2% |
| Repeatability | ≤±2% |
| Data Storage | 100,000 entries (configurable: real-time, timed, or alarm-triggered) |
| Communication | USB (data export & charging), optional RS485 |
| Sampling Method | Built-in suction pump (500 mL/min), extendable sampling distance >10 m with optional tubing |
| Certifications | CMC Metrology License, GB/T 18204.2–2014 (indoor air), GB 12358–2006 (portable gas detectors), RoHS compliant |
| Brand | Korno |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | GT-903-H2 |
| Price Range | USD 270 – 1,100 (FOB) |
| Detection Principle | Electrochemical / Thermal Conductivity |
| Gas Detected | H₂ |
| Range Options | 0–100 / 500 / 1,000 / 2,000 / 5,000 / 10,000 / 40,000 ppm |
| Resolution | 0.1 ppm (≤1,000 ppm), 1 ppm (≤40,000 ppm), 0.01% vol |
| T90 Response Time | ≤20 s |
| Accuracy | ≤±3% FS |
| Linearity Error | ≤±2% FS |
| Zero Drift | ≤±2% FS |
| Recovery Time | ≤20 s |
| Sensor Channels | 1–4 configurable |
| Explosion Protection | Ex ib IIC T4 Gb (per GB/T 3836.4–2021) |
| Ingress Protection | IP67 |
| Operating Temp | −20 °C to +50 °C |
| Operating Humidity | ≤95% RH (non-condensing) |
| Pressure Range | 88–112 kPa |
| Battery | 3800 mAh rechargeable polymer Li-ion |
| Display | 2.4″ industrial-grade color LCD |
| Data Storage | 120,000 records (on-device review & USB export) |
| Sampling Method | Built-in micro-diaphragm pump |
| Compliance | GB/T 3836.1–2021, GB/T 3836.4–2021 |
| Brand | Korno |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | MOT500-H2-A |
| Price | Upon Request |
| Detection Gas | Hydrogen (H₂) |
| Sensor Type | Imported High-Performance Electrochemical Sensor |
| Measurement Ranges | 0–100, 1000, 5000, 20,000, 40,000, or 50,000 ppm (selectable) |
| Resolution | 0.01 ppm (0–100 ppm) |
| Response Time (T90) | ≤20 s |
| Accuracy | ≤±3% FS (sensor-dependent) |
| Linearity Error | ≤±2% FS |
| Zero Drift | ≤±2% FS |
| Recovery Time | ≤30 s |
| Sensor Expansion | Up to 6 sensors (optional) |
| Repeatability | ≤±2% FS |
| Explosion Protection Certification | CCRI24.8021X |
| Ingress Protection Rating | IP66 |
| Temperature & Humidity Sensing (optional) | -20–50 °C |
| Sampling Method | Diffusion, Pipe-Insertion, Flow-Through, or Pump-Suction (selectable) |
| Mounting Options | Wall-Mount, Pipe-Mount (M40×1.5 mm thread), Flow-Through |
| Output Signals | 4–20 mA (16-bit, up to 1 km) |
| Transmission Modes | Shielded cable (3–4 core) |
| Compatible Receivers | PC, PLC, DCS, alarm controllers, smartphones, tablets |
| Alarm Types | Local audible/visual alarm |
| Alarm Configuration | Dual-level standard (tripoint optional) |
| Housing Material | Die-cast aluminum with sandblasted anodizing or fluorocarbon coating |
| Operating Environment | -20–50 °C |
| Power Supply | 24 VDC (12–30 VDC) |
| Electrical Interface | 3/4″ NPT internal thread + G1/2″ internal thread (dual compatibility) |
| Dimensions & Weight | 226 × 215 × 85 mm (L×W×H) |
| Standard Accessories | User manual, calibration hood, certificate of conformity |
| Optional Accessories | IR remote control, DC12/24V adapter, USB/RS232 converter, RS485/RS232 adapter, sampling pump, flow meter, flow cell, mounting bracket |
| Compliance Standards | GB/T 3836.1–2021, GB/T 3836.2–2021, GB/T 3836.31–2021 |