Honeywell TR23 20K Ohm Nonlinear NTC Temperature Sensor

The TR21, TR22, TR23, and TR24 are a family of direct-wired wall modules for use with: Spyder Unitary Controllers: PUL, PVL Excel 10 W7750, W7751a, W7752, and W7753 controllers Honeywell Excel 800, 600, 500, 100, and 80 (all fully programmable) controllers W7761 Controller ComfortPoint LON Controllers: CP-UL, CP-VL All models have a space temperature sensor. Some models have a temperature dial, setpoint adjustment, LONWORKS bus jack, override (bypass) with LED, and fan switch. Features: User-selectable temperature setpoint dials in Fahrenheit, Celsius, and Relative (- to +).