• Out-of-Stock

1 Area GSM Temperature/Humidity monitoring device

VAT included

The GSM SMS Environment Alarm will remotely monitor temperature/humidity and power status. When the temperature/humidity or power voltage exceed high threshold or low threshold value the unit will send a SMS alert to up to numbers. Supplied with External Antenae.


This 4G unit can monitor the temperature/humidity and power supply in one area. You can send a SMS to the unit at any time to request the current temperature/humidity status.  


  • Installation is simple. Basically the unit and sensor need to be mounted and plugged in, and a SIM card fitted. Programming is easilly done via the Smart Phone App.
  • The unit is not supplied with a SIM card due to RICA requirements. Either a pre paid option or contract version will work. If the contract option is used, there a many different options available and it is worth looking for a SMS bundle type contract which offers a good SMS rate. We recommend Vodacom or MTN. With the pre paid option it is possible to register your SIM card online, this will give you the option to log into your account and check balances as well as recharge credit. For the pre paid option we recommend Vodacom.



  • Power supply: 9-24VDC, recommend 12VDC1A
  • Temperature/Humidity Input: 1
  • Mounting: Surface
  • Numbers to send: 10
CS RTU5023 4G


Manual RTU5023

Download (137.49KB)