Temperature/Humidity Sensor Alarm


Temperature Humidity Sensor Alarm (RM-TH)

Temperature Humidity Sensor Alarm measures the temperature and relative humidity in high accuracy and transmit signal to cloud up to every 10 minutes.  In case the temperature or relative humidity exceed your preset value, you will receive the notification or email and you can react to the incident immediately.



Suitable for 

RM-TH-R (General use)

  • Server room
  • Material storage
  • Control room
  • Remote telcom station

RM-TH-C (Cold environment use) – special designed for cold storage up to -20°C

  • Cold storage
  • Medicine/vaccine storage
  • Refrigerated truck 
  • High end wine/liquor storage
  • Food industry 


  • Internet-of-thing (IOT) connected device – receive alarm anywhere anytime
  • Transmit data every 10 minutes
  • Email and mobile push notification in case of temperature/humidity over/below preset limit
  • Battery operated – no need for power supply cable
  • Standard size lithium ion battery – easy to source
  • Wifi communication
  • Simple setup and install
  • Periodic battery low check
  • Periodic survival check
  • Free IOS, Android, Web app
  • All design and hardware assembly in Hong Kong
  • Special battery for cold environment down to 20°C (model: R-TH-C)


Temperature range 0 to +50 -30 to +50
Humidity range 0-100%
Communication Wifi
App IOS,Android,Web
Data upload every 10 min
Alert over under set point, low battery,data upload overdue
Indication light Normal,Connect fail, transmitting, low battery
Battery Rechargable Lithium ion 18650
Expected usage after battery recharge 6 months 4 months
Operating voltage Nominal 3.7V
Size Diameter 110mm x 50mm
Weight 200 g
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