Compatible product can be found here:
http://www.amazon.com/Control-Products-FreezeAlarm-Temperature-HS-700/dp/B002MUAIP8/ref=sr_1_1?ie=UTF8&qid=1422844208&sr=8-1&keywords=home+sitter+alarm&pebp=1422844218250&peasin=B002MUAIP8
Light welding required.
