For simple low cost protection from freezing in homes, mountain cabins, or any unattended building, the Temp degs; Alert TA-40 will activate any hardwire or wireless alarm system if the temperature should fall below 39 degs; F (4 degs; C). The TA-40 offers positive protection and peace of mind to residential and business owners concerned about the risk of frost shattered pipes and the water damage that follows. Also known as -Winland Electronics Inc. TEMP SENSOR FIXED 40-DEG N/ C - WI-TA40-Winland Temp Alert TA-40 Powerless Operation for Controlled Climates -