Gas detection3
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Personal protective equipment2
WatchGas SST1 — maintenance-free single-gas detector (2 or 3 years, IP67/68)
The WatchGas SST1 is a modern, maintenance-free single-gas detector from the SST series — it runs for 2 or 3 years without replacing the sensor or battery. It measures H₂S, CO, O₂ or SO₂. It stands out with its high IP67–68 protection, NFC connectivity and compatibility with the SST Dock station (one of the fastest bump tests on the market). A 95 dB audible alarm @ 30 cm, flashing LEDs and a vibrating alarm; alarm thresholds can be changed in the WatchGas app. A lightweight (88 g), compact housing.
The WatchGas SST1 is a modern, maintenance-free single-gas detector from the SST series — it works for 2 or 3 years without replacing the sensor and battery. It measures H₂S, CO, O₂ or SO₂. It stands out with a high IP67–68 protection rating, NFC connectivity and compatibility with the SST Dock station (one of the fastest bump tests on the market). A 95 dB audible alarm @ 30 cm, flashing LEDs and a vibrating alarm; alarm thresholds can be changed in the WatchGas app. Lightweight (88 g) and compact housing.
Note: The SST1 comes in two variants: maintenance-free (2/3 years without replacement) and serviceable (Serviceable) — with replaceable sensors and battery, supporting up to 8 gases (CO, H₂S, O₂, SO₂, NH₃, PH₃, methanethiol, H₂). We will help you choose the right version.
Key features
- Maintenance-free operation for 2 or 3 years — without replacing the sensor and battery.
- Versions: H₂S (0–500 ppm), CO (0–2000 ppm), O₂ (0–25% vol., 2 years), SO₂ (0–100 ppm).
- A serviceable version (SST1 Serviceable) is also available — replaceable sensors and battery, a platform for up to 8 gases; ask about selection.
- NFC connectivity; log of the last 100 events; alarm thresholds adjustable in the app.
- Compatible with the SST Dock station — very fast bump test.
- 95 dB audible alarm @ 30 cm, visual (LED) and vibrating.
- IP67–68 protection rating; weight 88 g; range −40…+60°C.
- ATEX/IECEx/UKEx Ex ia IIC T4 Ga approvals; CSA; UL 61010.
Technical specifications
| Parameter | Value |
|---|---|
| Type | maintenance-free single-gas detector (2/3-year) |
| Measured gases | H₂S, CO, O₂ (2 years) or SO₂ |
| Ranges | H₂S 0–500 ppm · CO 0–2000 ppm · O₂ 0–25% vol. · SO₂ 0–100 ppm |
| Operating time | 2 years (all) / 3 years (H₂S or CO) |
| Battery | built-in, non-replaceable |
| Dimensions / weight | 83 × 49 × 20 mm / 88 g |
| Protection rating | IP67–68 |
| Connectivity | NFC; log of 100 events |
| Operating temperature | −40…+60°C; 5–95% RH |
| Alarms | LED, audible 95 dB @ 30 cm, vibrating; thresholds adjustable in the app |
| Approvals | ATEX/IECEx/UKEx Ex ia IIC T4 Ga; CSA; UL 61010 |
| Calibration / bump test | SST Dock station |
Applications
Personal worker protection, confined spaces, industry, water and wastewater, service and maintenance work.
Frequently asked questions (FAQ)
How many years does the WatchGas SST1 last?
2 years for all versions, and in the H₂S or CO version even 3 years — without replacing the sensor and battery.
Which gases does the SST1 measure?
H₂S, CO, O₂ (the 2-year version) or SO₂. The gas is selected when ordering.
How does the SST1 differ from the PDM?
These are two different, current WatchGas products. The SST1 is the newer line (NFC, SST Dock station, higher IP, up to 3 years), the PDM is the classic disposable platform (IR-Link, PDM dock).
Brand & service
WatchGas — SafeTech is a distributor and service station: sensor selection, calibration, bump tests and service (WatchGas Mono/Multi Dock docking stations).
Why SafeTech
- 23 years of experience in gas detection (the company has been operating since 2003).
- Authorised distributor and authorised service station (including Honeywell, WatchGas).
- In-house service, calibration, certification and adjustment in Suchy Dwór near Gdynia — support throughout Poland.
- Training and technical support (SafeTech Safety Academy).
Availability & service — Gdynia and Tricity
WatchGas SST1 — maintenance-free single-gas detector (2 or 3 years, IP67/68) — sales, selection, calibration and service in Gdynia (Suchy Dwór, on the border of Gdynia and the Kosakowo municipality). We serve the Tricity area (Gdańsk, Sopot, Gdynia), Rumia, Reda, Wejherowo, the Pomerania province and all of Poland. Ask about our offer 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.
