HONEYWELL C7750A3006 20 K ohm NTC linear Temperature Sensor. The C7750A is a direct wired temperature sensor that is used to sense discharge or return air in a duct that may be controlled by an Excel 10 Controller. The C7750A Sensor consists of a temperature sensitive 20K ohm thermistor that is connected on a circuit board to two linearizing resistors in series-parallel configuration.Features A primary and/or secondary sensor for use with electronic control systems. Designed with an integral linearized 20K ohm thermistor. Operating range of 45 to 99 F (7.2 to 37.2 C). Intended for mounting on a flat duct or plenum surface or (for a plenum-rated application) in a standard utility conduit box. Probe length of 6-1/2 (165 mm) and a nominal sensor resistance of 8000 ohms at 77 F (25 C). Rugged aluminum insertion probe.
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