Description
WatchGas SST4 Micro Four-Gas Detector for Industrial Gas Monitoring
The WatchGas SST4 Micro Four-Gas Detector is designed to provide personal monitoring of hazardous gases in industrial and occupational environments. As part of the SST4 range, the detector can monitor up to four gases simultaneously, giving workers access to multiple gas readings from a single compact instrument.
The SST4 Micro is designed around simplicity, compactness and portability while maintaining a rugged construction for demanding industrial conditions. The detector is suitable for environments ranging from high-temperature steel operations and HAZMAT applications to oil and gas fields.
The detector features a large LCD display designed to present critical information clearly. Gas readings can be displayed in PPM, % volume, mg/m³ and %LEL, depending on the selected sensor and gas configuration. The backlit display improves visibility in darker working environments and supports quick interpretation of gas conditions.
For immediate hazard notification, the SST4 provides a 95 dB audible alarm at 30 cm. High, Low, TWA and STEL alarm levels can be configured according to the user’s requirements and updated through the SST Dock or WatchGas SST Application. This allows the detector’s alarm configuration to be adapted to the monitored gas and workplace requirements.
The SST4 range uses solid-state sensor technology for selected H₂S, CO, O₂ and SO₂ sensors, with the documentation describing stability and reliability across extreme temperatures and conditions. The detector also offers a choice of three LEL sensor technologies, allowing configuration according to the application and providing different runtime characteristics.
The SST4 Micro can be configured with an LEL Low Power Catalytic (LPC) sensor. The datasheet specifies a typical battery life of approximately 48 hours for the SST4 Micro with the LEL LPC configuration.
NFC communication is built into the detector as standard. When paired with the WatchGas SST Application, users can manage detector settings, perform bump tests and calibrations, assign devices, and download event and data logs. This provides a digital method for managing gas-detector settings and maintenance records.
The SST4 Micro uses induction charging, eliminating the need for a conventional charging connector on the device. The datasheet states that a complete charge cycle takes approximately 2–3 hours. This charging approach is intended to reduce the risk of damage to charging cables and ports in dirty or harsh working environments.
The detector has an IP65/68 rating and uses a double-shot housing designed for increased robustness. Screen protectors on either side of the display help protect the LCD against scratching during industrial use.
The SST4 Micro measures approximately 103.9 × 62.4 × 26.1 mm and weighs approximately 184 g. Its specified operating temperature range is −40°C to +60°C, with an operating humidity range of 5–95% relative humidity, non-condensing.
The detector supports event logging for the last 100 events and data logging, with the datasheet specifying a six-month data-logging period. It also carries hazardous-area certifications and approvals including ATEX, IECEx, UKEX and PESO configurations, with the exact certification dependent on the sensor configuration.
The WatchGas SST4 Micro is suitable for applications including oil and gas upstream operations, steel production, wastewater, shipbuilding, first-response activities, manufacturing, shipping and power generation.
With its four-gas monitoring capability, rugged construction, configurable alarms, NFC connectivity, induction charging and compact format, the SST4 Micro provides a practical solution for personal multi-gas monitoring in industrial environments where workers may encounter flammable, toxic or oxygen-related gas hazards.
Key Features
- Four-gas detection capability
- Monitors up to four gases simultaneously
- Large backlit LCD display
- Gas readings in PPM, %vol, mg/m³ and %LEL
- 95 dB audible alarm at 30 cm
- Configurable High, Low, TWA and STEL alarms
- NFC communication
- Compatible with WatchGas SST Application
- Bump-test and calibration management
- Event and data logging
- Solid-state sensor technology for selected sensors
- Choice of LEL sensor technologies
- Induction charging
- Approx. 2–3 hour charging cycle
- IP65/68 protection
- Rugged double-shot housing
- Screen protectors for LCD
- SST4 Micro LEL LPC typical battery life of approximately 48 hours
- Approx. dimensions: 103.9 × 62.4 × 26.1 mm
- Approx. weight: 184 g
- Operating temperature: −40°C to +60°C
- 2-year standard warranty
Applications
- Oil and gas upstream operations
- Steel production
- Wastewater facilities
- Shipbuilding
- First responder operations
- Manufacturing
- Shipping and marine operations
- Power generation
