Serviceable single-gas monitor with real-time reading plus TWA and STEL alarms. Available for 8 gases, with replaceable battery and solid polymer sensors, IP67-68.
Specifications
| H2S | 0–500 ppm, res. 0.1 ppm; low 10 / high 15 ppm; STEL 15, TWA 10 ppm |
|---|---|
| CO | 0–2000 ppm, res. 1 ppm; low 35 / high 200 ppm; STEL 100, TWA 20 ppm |
| O2 | 0–25.0 % vol, res. 0.1 % vol; low 19.5 % / high 23.5 % |
| SO2 | 0–100 ppm, res. 0.1 ppm; low 5 / high 10 ppm; STEL 5, TWA 2 ppm |
| NH3 | 0–100 ppm, res. 0.1 ppm; low 25 / high 50 ppm; STEL 35, TWA 25 ppm |
| H2 low range | 0–1000 ppm, res. 1 ppm; low 100 / high 400 ppm |
| H2 high range | 0–20,000 ppm, res. 100 ppm; low 4000 / high 8000 ppm |
| CH4S (methyl mercaptan) | 0–100 ppm, res. 0.1 ppm; low 2 / high 5 ppm; STEL 1, TWA 0.5 ppm |
| PH3 | 0–20 ppm, res. 0.01 ppm; low 1 / high 2 ppm; STEL 1, TWA 0.3 ppm |
| Sensor technology | Solid polymer, no liquid electrolyte; replaceable sensors |
| Response time T90 | H2S, CO, O2, PH3, H2 low range: < 10 s; CH4S: < 40 s; SO2, H2 high range: < 55 s; NH3: < 130 s |
| Battery life | O2: 2 years; H2S, CO, SO2, NH3, H2, PH3, CH4S: up to 3 years (depending on alarms, low-power mode); replaceable battery |
| Display | Real-time gas reading, TWA and STEL; hold button 10 s to reset TWA/STEL at shift change |
| Alarm | 95 dB at 30 cm; all alarm levels configurable via WatchGas App or SST Dock; bump-test and calibration reminders; compliance check |
| Size | 83 × 49 × 20 mm |
| Weight | 88 g |
| Operating temperature | CO, H2S, O2, SO2: -40 to +60 °C; others: -20 to +50 °C |
| Humidity | 5–95 % RH (non-condensing) |
| Event logging | Last 100 events |
| Ingress protection | IP67-68 |
| Communication | NFC |
| Shelf life | 1 year |
| Warranty | Instrument 3 years; battery 2 years (based on 1 min alarm per day); sensors NH3, CH4S, PH3: 1 year; H2S, CO, O2, SO2, H2: 2 years |
| Accessories | Gas cylinder; fixed flow regulator 715 0.5 LPM stainless steel (A0299024) / brass (A0195339); external filters pack of 10 (SST1-XF-10) / 100 (SST1-XF-100); SST Dock |
Standards & Certifications
- ATEX / IECEx / UKEX: II 1 G Ex ia IIC T4 Ga; I M1 Ex ia I Ma (0344)
- Intrinsically safe: Class I Div 1, Groups A, B, C, D T4
- CSA C22.2 No. 60079-0
- CAN/CSA C22.2 No. 60079
- UL 61010, UL 60079-0, UL 60079-11
- CAN/CSA-C22.2 No. 61010-1-12
- EMC Directive 2014/30/EU
For pricing and availability, please request a quotation.