It’s a gem. Ring 1800 805 243 for details. All sorts of options are available eg: 4 temperature sensors & one remote contactor enable disable ex-stock $550 [call charges are minimal appx 15c per SMS]. Excellent for large homes. Can be used to enable/disable heaters via SMS/TXT from anywhere with mobile access.
PC connection via USB to set alarm thresholds, read temperatures [see sensor 1 reading 16.69C]