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S270 3G SMS Alarm with inbuilt temperature and RH input - small unit

  • 3G SMS Alarm with inbuilt temperature and RH input, 2 Digital and 2 Relay out.
  • ​Includes 2 Analog inputs that can be used for any monitoring (4-20Ma,0-10 V, 0-5v)
  • ​Small size easy to use AC240 V power with backup.
  • Includes a Fee App for your phone to control and monitor remotely.
  • ​This SMS alarm will monitor temperature or Humidity compare the levels to your set points and send an SMS to your phone if anything is outside these limits.
  • You can also connect switches and monitor these for activation (like alarm , flood, gates, thermal cutouts etc) and get a SMS message when activated.

Model: 28 SMS S270

In Stock

Includes GST


Model: SMS S270

S270 3G SMS Alarm with inbuilt temperature and RH input. AC240 V power and backup battery.
​Has 1x Temp + RH input, 2 x Digital switch inputs , 2 x Relay (AC240 V 3 A) outputs and 2 x Analog inputs (4-20 Ma or 0-10V).
Complete with setup software, usb cable, power pack and a no monthly charge SIM card for you to activate.
Can send messages to 10 Phone numbers either all or in sequence.
Option for GPRS cloud logging if required.
Suitable for all Australian phone networks. (our supplied SIM is on OPTUS)


  • Metal enclosure for mounting
  • Includes all parts required
  • 12 Bit accuracy on the analog inputs
  • Has 2 relay out puts for control
  • Easy to program and setup
  • Small package size
  • Hi gain antennas available as an option
  • Plug in connectors for ease of use

S270 SMS Alarm.pdf