This model is approximately 1

Always check your controller's model number before installation

this fan blade features a standard 1/2" bore with a set screw

With a ±3% capacitance tolerance and an operating temperature range of -40°C to 70°C

ensuring compatibility with most DDC controllers and PLCs

Maxitrol TS121 Sensor Els PW 17895 This model is approximately 1For veteran technicians servicing indirect fired make up air units, the Maxitrol TS121 discharge air temperature sensor is the critical component for maintaining a stable 55 90F terminal temperature range. Specifically engineered for integration with Selectra Series 20, 21, 30, and 31 modulation systems, this thermistor based sensor delivers a resistance of 4,500 ohms at 77F, providing the Maxitrol amplifier with the sub second response times required