Gas detection3
Respiratory protection4
Technical rescue9
Firefighting4
Safety & environment4
Personal protective equipment2
WatchGas SST4 Pump — 4-gas detector with pump
The WatchGas SST4 Pump is a rugged 4-gas detector with a built-in pump (bottom sampling line) for measurements in confined spaces, tanks and industrial facilities. It measures combustible gases (LEL — LPC, catalytic or IR versions), oxygen, CO and H₂S, offering one of the fastest response times in its class, a large LCD display, NFC and wireless charging. ATEX/IECEx/UKEx certification.
The WatchGas SST4 Pump is a rugged 4-gas detector with a built-in pump (bottom sampling line) for measurements in confined spaces, tanks and industrial facilities. It measures combustible gases (LEL — LPC, catalytic or IR versions), oxygen, CO and H₂S, offering one of the fastest response times in its class, a large LCD display, NFC and wireless charging. ATEX/IECEx/UKEx certification.
Key features
- Measurement of 4 gases: LEL, O₂, CO, H₂S (LPC / catalytic / IR versions).
- Built-in pump — sampling via the bottom line.
- NFC + wireless charging; large LCD display.
- Runtime: LPC ~50 h / IR ~100 h; charging 5–6 h.
- Alarm 95 dB @ 30 cm; integration with the SST Range app.
- ATEX/IECEx/UKEx II 1G Ex ia IIC T4 Ga; Class I Div 1.
Technical specification
| Parameter | Value |
|---|---|
| Type | portable 4-gas detector with pump |
| Measured gases | LEL, O₂, CO, H₂S |
| Dimensions / weight | 150 × 62.2 × 32.4 mm / 275 g |
| Protection | IP65/68 |
| Runtime | 50 h (LPC) / 100 h (IR) |
| Temperature | −20 to +60 °C |
| Certificates | ATEX/IECEx/UKEx Ex ia IIC T4 Ga |
| Manufacturer | WatchGas |
Applications
Measurements in confined spaces, tanks and industrial installations requiring active sampling.
Frequently asked questions (FAQ)
Why a pump in the SST4 Pump?
To draw an air sample from deep inside a tank or manhole before entry — the pump sucks in gas through a hose and probe.
Which gases does it measure?
Combustible gas (LEL), oxygen, CO and H₂S — in LPC, catalytic or IR sensor versions.
Brand and service
WatchGas — SafeTech is the distributor and service station: selection, supply, configuration, calibration and service of WatchGas detectors and systems.
Why SafeTech
- 23 years of experience in gas detection (in business since 2003).
- Distributor and service station.
- In-house service, calibration and certification in Suchy Dwór near Gdynia — nationwide coverage in Poland.
- Training and technical support (SafeTech Safety Academy).
Availability and service — Gdynia and the Tricity
WatchGas SST4 Pump — 4-gas detector with pump — sales, selection, calibration and service in Gdynia (Suchy Dwór, on the border of Gdynia and the Kosakowo municipality). We serve the Tricity (Gdańsk, Sopot, Gdynia), Rumia, Reda, Wejherowo, the Pomeranian Voivodeship and all of Poland. Ask about pricing and availability.
Accessories and compatible equipment
- Calibration & bump test: stacja WatchGas SST Dock, calibration gas mixtures, regulators and pressure-reducing valves for cylinders.
- Sensors & filters: replacement sensors matched to the measured gas, dust and hydrophobic filters.
- Sampling: probe, hose, aspirator bulb (for diffusion versions).
- Carrying & protection: lanyard, clip, holder, transport case, charger/power supply.
Full selection of accessories and parts for this model — request a quote.
