WatchGas SST4-MICRO-X1OMD-Y SST4 3 Gas Monitor Micro LPC/O2/CO/DUMMY  (Filtered LEL Sensor)

As many industries transition from single-gas to a multi-gas approach, user adoption becomes increasingly important. The SST4 range is engineered with simplicity, compactness, and the user in mind. Its rugged yet portable design ensures reliability across a variety of environments, from the high temperatures of the steel industry and HAZMAT operations to the extreme conditions of oil and gas fields. With extensive user options, the SST4 can be customized for diverse applications. Device setup is straightforward using the WatchGas SST Application, which also manages calibration and bump test records. Compliance Check makes it easier than ever to maintain your fleet, ensuring maximum uptime. An induction disk charger for the device is included in the box.

The SST4 Micro and Mini are designed for profesionals who operate in the harshest environments, from oild and gas to steel production and first response. Both models measure up to four gases simultaneously, including oxygen, carbon monoxide, hydrogen sulphide, sulphur dioxide, and combustible gases with different LEL sensor options.

The rugged housing is IP65/68 certified, protecting the device in the harshest conditions. Induction charging eliminates fragile connectors, making charging faster and more reliable. Whether used in confined spaces, industrial plants, or emergency response, the SST4 Micro and SST4 Mini deliver a balance of compact size, robust performance, and advanced connectivity.

Meets or Exceeds North America: Class I, Div. 1, Gr. A, B, C, D. Class I, Zone 0, Gr. IIC ATEX/IECEx/UKEX LEL-LPC and LEL-CAT II 1 G Ex ia IIC T4 Ga I M1 Ex ia I Ma -40°C ≤ Tamb ≤ +60°C EN 50270:2015+AC:2016, EN 301 489-1 V2.2.3 EN 301 489-3 V2.1.1, RoHS EN63000:2018 LEL-IR sensor II 1 G Ex ia op is IIC T4 Ga I M1 Ex ia op is I Ma -40°C ≤ Tamb ≤ +60°C

Features:

• Compliant with RTR Software
• Near Field Communication built (NFC) as standard
• Wireless charging
• Longer runtimes
• Configurable alarms (TWA, STEL, high/low)
• Fastest T90 in its category
• Size: 103.9mm x 62.4mm x 26.1mm (Dimensions are stated without alligator clip. Please add 4mm in depth for dimensions with alligator clip)
• Operating temperature: -40 to +60°C / -40 to +140°F
• Humidity: 5% - 95% RH (non-condensing)
• Typical battery life: SST4 Micro: LEL Low Power Catalytic – 48hr
• Induction Charger: 2-3 hours
• Event logging: 100 events
• Data logging: 6 months
• IP: 65/68
• Communication: NFC
• Calibration: 6 months as standard
• Warranty: 2-year warranty as standard

Sensor Specifications:

• O2:
  • Gas measuring range: 0 - 25.0% Vol
  • Low alarm: 19.5% Vol
  • High alarm: 23.5% Vol
  • Resolution: 0.1% Vol

• LEL Low Power Catalytic (LPC):
  • Gas measuring range: 0 - 100% LEL
  • Low alarm: 10% LEL
  • High alarm: 20% LEL
  • Resolution: 1% LEL
• CO:
  • Gas measuring range: 0 - 2000 ppm
  • Low alarm: 35 ppm
  • High alarm: 200 ppm
  • STEL: 100 ppm
  • TWA: 20 ppm
  • Resolution: 1 ppm