Mainly Features of the GSM SMS IR Controller: 1. 1 temperature diode( 25¡ã=10K,1% precision, included in standard package) input to convert the temperature to digital value; 2. Lower or Higher warning temperature threshold value can be configured; 3. Can inquire the current temperature value in ¡æ to mobile phone by SMS Command, e.g.:21¡æ. 4. Can be configured parameters from anywhere by SMS Text command, no distance limit; 5. Up to 5 different temperature value can be configured by SMS commands; 6. Up to 5 phone numbers can be configured as SMS Text warning receiver; 7. External AC Power failure and recovery can warn the users; 8. 1 NC/NO digital input(Dry type) can be used for detectors, e.g.: smoke detector, water leakage detector and so on; 9. 1 Digital Output Relay(3A240VAC) can be used for remotely switch ON/OFF equipments by SMS Text Command, Also the relay can be linked to the temperature threshold value, e.g.: when temperature is lower or higher than the threshold value, then switch ON or OFF the output relay automatically.