Description
WatchGas SST1E Serviceable Single-Gas Detector for Industrial Safety
The WatchGas SST1E Serviceable Single-Gas Detector is designed to monitor the presence of specific hazardous gases in industrial and occupational environments. As a single-gas personal monitor, it provides workers with real-time gas readings and alarm notifications when detected concentrations reach configured limits.
The SST1E is part of the WatchGas SST1 and SST1E serviceable detector range. It uses a mini electrochemical sensor platform and is designed to provide a compact alternative to conventional larger gas-detection instruments. The serviceable design allows key components such as the sensor and battery to be replaced, helping extend the usable life of the detector and support long-term equipment maintenance.
The detector can be configured for monitoring different gases, depending on the selected sensor. Supported gas options listed in the product documentation include hydrogen sulphide (H₂S), carbon monoxide (CO), oxygen (O₂), sulphur dioxide (SO₂), ammonia (NH₃), hydrogen (H₂), phosphine (PH₃), chlorine (Cl₂), hydrogen cyanide (HCN), hydrochloric acid (HCl), ethylene oxide (ETO), nitrogen monoxide (NO), nitrogen dioxide (NO₂) and other specified gases. The exact gas range and alarm values depend on the selected sensor configuration.
The SST1E provides multiple alarm levels, including low, high, Short-Term Exposure Limit (STEL) and Time-Weighted Average (TWA) monitoring where supported by the selected configuration. These alarm functions help indicate both immediate gas hazards and exposure levels accumulated over a work period. Alarm set points can be configured through the SST Dock or the WatchGas Device Link App.
For immediate warning, the detector features a 95 dB audible alarm at 30 centimetres, supported by visual indications on the display. The alarm system is designed to notify workers when hazardous gas concentrations are detected, including in demanding industrial environments where ambient noise may be present.
The detector includes a display for viewing gas readings and status information. Its casing uses a double-shot housing designed to provide additional robustness, while screen protectors help reduce the risk of LCD scratching during industrial use. The instrument is rated IP65/IP68, providing protection against dust and water exposure within the conditions of the applicable rating.
The SST1E incorporates NFC communication, allowing users to connect the detector with the WatchGas Device Link App. Through the supported application and accessories, users can manage detector settings, perform bump tests, calibrate the instrument, assign devices, review device status and download event logs. This can help safety teams maintain better oversight of gas-detection equipment and its operating history.
The device includes event-logging capability and can record the last 100 events, supporting review of alarms and detector activity. It also provides configurable reminders for bump testing and calibration, helping organizations maintain their gas-detection equipment in accordance with their internal safety procedures.
The SST1E has approximate dimensions of 83 × 49 × 24 mm and weighs approximately 90 grams. Its compact size and low weight make it suitable for personal use where the detector needs to be carried or worn throughout a work shift.
The operating temperature range depends on the selected sensor. The documentation specifies −40°C to +60°C for H₂S, CO, O₂ and SO₂ sensors, and −20°C to +50°C for other sensor options. The specified operating humidity range is 5–95% relative humidity, non-condensing.
The detector is available with hazardous-area certifications and approvals listed in the product documentation, including ATEX, IECEx and UKEX markings, along with specified regional approvals such as PESO and other certifications depending on the applicable configuration. The exact certification marking should be verified against the selected detector and sensor variant before deployment.
The instrument warranty is listed as three years, while battery and sensor service life depend on the component and operating conditions. The catalogue specifies a two-year battery warranty basis under stated alarm-use conditions, with sensor warranty periods varying according to the gas sensor type.
The WatchGas SST1E Serviceable Single-Gas Detector is suitable for workplaces where personnel may encounter toxic gases, oxygen-deficient atmospheres or other gas-related hazards. Its compact design, serviceable components, configurable alarms, NFC connectivity and rugged enclosure make it suitable for industrial gas-monitoring programmes and personal exposure-warning applications.
Key Features
- Serviceable single-gas personal detector
- Mini electrochemical sensor technology
- Replaceable sensor and battery
- Compact and lightweight design
- Approximate dimensions: 83 × 49 × 24 mm
- Approximate weight: 90 g
- Real-time gas reading
- Low, high, STEL and TWA monitoring options
- 95 dB audible alarm at 30 cm
- Visual alarm indications and display
- Double-shot rugged housing
- Screen protectors for LCD protection
- IP65/IP68 ingress protection
- NFC communication
- Compatible with WatchGas Device Link App
- Configurable alarm set points
- Bump-test and calibration reminders
- Event logging for the last 100 events
- Available for multiple gas configurations
- ATEX, IECEx and UKEX certification markings listed
- Instrument warranty of 3 years
Applications
- Oil and gas upstream operations
- Oil and gas downstream operations
- Industrial contracting work
- Site maintenance
- Plant turnarounds and shutdowns
- Boiler rooms
- Steel plants
- Laboratories
- Shipping and marine operations
- Power generation facilities
- Mining operations
- Chemical and process industries
- Hazardous-area maintenance
- Personal gas monitoring during industrial work
