The TempAlert® TA-2HL offers reliable and economical temperature protection for residential or commercial security systems. Simply wire units in parallel for simple, wide-area coverage. Ideal for computer rooms, residential/vacation homes, greenhouses, animal buildings or unattended buildings. Monitor high and low temperature limits by setting an acceptable temperature range with high and low limit arms. The TA-2HL features separate high and low temperature outputs.
Not for use in cooler/freezer monitoring, instead choose an EnviroAlert® with probe.