TWS – Thermal Watch Sensor

Smart, wireless temperature monitoring sensor for early detection of overheating in electrical panels. Designed for harsh industrial environments with IP68 protection and 10+ years lifespan.
  • 24/7 temperature monitoring
  • Real time temperature alerts
  • Visual indication of fault location
  • Self-test on installation
  • Operative indoor and outdoor, IP68
  • Up to 6 meters communication between sensor and receiver
  • Install anywhere 13.5 x 16 x 29 mm device
  • No wiring - install in seconds
  • Communication setup free
  • License free signaling worldwide
  • Fail safe : redundancy with two Independent temperature sensors
  • Operative till 115 ℃
  • Over 10 years lifespan guaranteed

Technical Specifications: Version Comparison
Choose the right sensor version based on your temperature monitoring requirements.
  • TWS Thermal Watch sensor version 1
    Monitoring up to 85°C

    Max operating temperature 150 °C

    Thresholds: 30°C, 40°C, 50°C, 60°C, 70°C, 80°C


    29 x 16 x 13.5 mm

    Vertical mounting
  • TWS Thermal Watch sensor version 2
    Monitoring up to 115°C

    Max operating temperature 150°C

    Thresholds: 30°C, 40°C, 50°C, 60°C, 70°C, 80°C, 90°C, 100°C, 110°C

    25 x 25 x 16 mm

    Flat and vertical mounting

Temperature measurement period

Life expectancy
(TWS version 1)
Life expectancy
(TWS version 2)
2 mins
> 2 months
> 1 year
30 mins
> 4 years
> 10 years
1 hour
> 8 years
> 10 years
2 hours
> 10 years
> 10 years
Installation & Operation
Location: TWS should be installed on cables or busbars close to the contact connection points (the primary heat source).
Method: Installation is quick and tool-free. Use cable ties, screws, or a metal plate depending on the surface.
Receiver: The Infrared Receiver (TWR-IR) must be installed into the same volume (enclosure) as the sensors to ensure signal reception (up to 6 meters range).
Setup: No complex configuration needed. The sensor performs a self-test upon installation.