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Honeywell C7750 Duct Probe

Duct Probe
C7750

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.

• 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.

Select a link under the "item" tab below to order.

Cat #DescriptionsSensor TypeInsertion Length
C7750A300620 K ohm NTC linear Temperature Sensor, used with Excel 10, Series 1000 only20 K ohm NTC linear6 in.
Application: Primary and/or secondary sensors in electronic control systems
Dimensions, Approximate: 1 in. high x 2 in. wide x 7 in. deep (25 mm high x 51 mm wide x 177 mm deep)
Operating Temperature Range: 45 F to 99 F (7 C to 37 C)
Shipping Temperature Range: -40 F to +150 F (-40 C to +65 C)
Operating Humidity Range (% RH): 5 to 95% RH, non-condensing
Mounting: Mounts on flat duct or plenum surface with integral mounting flange or in a 2 in. x 4 in. (51 mm x 102 mm) junction box.
Used With: XL10, W7751


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