Meet the Aeotec Multisensor 6: a 6-in-1 Z-Wave Plus device that can detect motion, humidity, temperature, light, UV, and vibration. It runs for up to 2 years on battery. The device works with Fibaro, HomeSeer, Indigo 7, openHAB, SmartThings, and other Z-Wave gateways.
The device is capable of measuring temperature between 14 to 122F. It also has a real-time digital light sensor and a humidity sensor for automation of fans and motorized windows. Costs under $60 at this time.