The TS-1/PS Temperature Sensor allows remote monitoring of inside or outside temperature when used with the RFC-1 Remote Facilities Controller. The TS-1/PS consists of two items. The first is a small temperature-sensor module (model TS-1) and the second is a 12 volt DC wall-plug power supply (model PS-12). One PS-12 power supply will operate many (100+) TS-1 temperature sensors. Additional TS-1 temperature sensors may be purchased separately.

The TS-1 Temperature Sensor produces an output of 10 millivolts per degree Fahrenheit. For example, a temperature of 72° will result in an output of approximately 0.72 volts. With an additional circuit (shown later), the TS-1 can measure temperatures below 0° F.