More sensors in the portfolio than you expected.

We would like to remind you of our wide portfolio of sensors & detectors you can connect to our monitoring products. Do you need a sensor of something else? support [at] hwg [dot] cz (subject: Sensors%20and%20detectors) (Contact us).

HW group offers hundreds of precise sensors and detectors for every application. We do multiple levels of quality and precision testing on all our products to make sure you can rely on our data.

Check out some of our most popular sensors and detectors that we have in our portfolio.



Detectors indicates 0/1 as the output value (Doors = open/close for example). Detectors are typically connected to DI input of HW group devices.

Water detection 


   Flood Detector LD-12

   Spot flood detection


   Sensor WLD Relay 1W-UNI

   Up to 85 meters of water detection cable (connection DI or 1Wire UNI)


   Flood detector 1W-UNI 3m

   1D water detection can be fully submerged (connection 1Wire UNI)


Power 110/230V detection



   110/ 230 V single phase, max. load 8A


 Power Detector

 110/230 V voltage, relay output (max. 50V/ 13V)

Door contact

    Door contact MK4

   Designed for door opening detection.



You can connect to the RJ11 port (1-Wire) on all HW group monitoring devices. The sensors provide a continuous value.


Sensor CO2 1W-UNI

Temperature range: 0 to 50°C (IP67), Humidity range: 0 to 95% RH, CO2 range: 300 to 40000 ppm




   Temp-1Wire-Flat 3m

   Temperature range: -30 to 60°C (IP67)
   Sensor with flat cable is designed for monitoring freezers and fridges.



  Temp 1Wire Pt1000

  Temperature range: -50 to 200°C (IP67)



     Temp 1Wire Pt1000 Frost

    Temperature range: -200 °C to 160 °C (IP67)



    Temp HomeBox

   Temperature range: -30 to 70 °C


Relative Humidity 



   Humidity range: 0-100 % RH, Accuracy: 5% RH

Temperature, Relative Humidity 

      HTemp-1Wire Rack19

      Temperature range: -10 to 80°C, Humidity range: 0-100% RH



   HTemp HomeBox

   Temperature range: -30 to +70 °C
   Humidity range: 0 to 100% RH





  Temperature range: -10 to 80°C
  Humidity range: 0-100% RH


  HTemp-1Wire 3m

  Temperature range: -30 to 80°C
  Humidity range: 0–100% RH



 HTemp-1-Wire Outdoor

Temperature range: -30 to 85°C
Humidity range: 0–100% RH



Light intensity 

 Light 1Wire-UNI

  Illuminance: 0–100%
  Accuracy: +-10%

AC / DC Voltage  


  Sensor 0-20mA 1W-UNI

  8-point calibration table
  Accuracy: +-2%



  Sensor 230V AC 1W-UNI

  Voltage range: 0–250 V AC
  Accuracy: 5%