NTF-502-US ISD Product The 75F Wall Sensor is

The 75F Wall Sensor is a high-precision temperature and humidity sensor that pairs with the 75F Smart Node to deliver data that influences equipment control

and insulation depths

The dual Ethernet port capability allows for daisy chain capability within the recommended IT standards

low-temperature limit/cut-out thermostat with a 20 foot capillary sensing element

NTF-502-US ISD Product The 75F Wall Sensor isElectro mechanical, low temperature limit cut out thermostat with a 50 foot capillary sensing element, auto reset, and (2) SPDT switched output. The thermostat and its capillary sensing element provide an antifreeze function. It detects temperature drops below a fixed safety value (setpoint), i. e. heaters in A C units, exchangers in cooling systems, etc.