H2 Hydrogen Gas Detector (High Range) – WatchGas
The WatchGas SST1 configured for H2 (Hydrogen) – High Range is a compact, rugged single-gas detector purpose-built for continuous personal monitoring of this gas, measuring 0-20,000 ppm with a 100 ppm resolution and a T90 response time under 55 seconds. It comes pre-set with low and high alarms at 4000 ppm and 8000 ppm respectively (STEL and TWA exposure limits are not specified for this configuration). Housed in an IP65/68-rated, replaceable-battery and replaceable-sensor design, it’s built for demanding industrial environments where reliable, long-term H2 (Hydrogen) detection is critical.
Key Features:
- Dimensions: 83 x 49 x 20 mm (3.3 x 1.9 x 0.8 in)
- Weight: 88 g (3.1 oz)
- Alarm type: 95 dB audible alarm (industry-standard loudness at 30 cm) paired with visual alerts on the large LCD display, covering Low and High alarm level
- Detects/measures: H2 gas, 0–20,000 ppm range (high range configuration)
- Resolution: 100 ppm — suited to the wider high-concentration range
- Response time: T90 <55 seconds
- Alarm setpoints: Low alarm at 4000 ppm, High alarm at 8000 ppm
- Durability: IP65/68-rated housing, built for harsh industrial environments
- Serviceability: Replaceable battery and replaceable sensor module, extending the unit’s usable life
- Connectivity/management: NFC “tap and go” for fleet management, event logging (last 100 events), and configuration via the WatchGas Device Link App or SST Dock
Standards:
- ATEX, IECEX, UKEX : II 1 G Ex ia IIC T4 Ga I M1 Ex ia I Ma
- AS/NZS 60079 – Explosive atmospheres, Part 14: Design selection, erection and initial inspection
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