HW group s.r.o., a LAN sensors manufacturer based in the Czech Republic, presents a new HWg-Ares12 unit. This GSM/GPRS thermometer enables monitoring of temperature, humidity, door contacts and other sensors over a GSM cellular network. An internal rechargeable back-up battery keeps the device operating for 4 to 12 hours, enabling e-mail or SMS alerts to power outages.
Another unique feature, besides SMS and e-mail communication, is the HWg-Push protocol.