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Honeywell H7625, H7635, and H7655 Humidity and Temperature Transmitters

Humidity and Temperature Transmitters
H7625, H7635, and H7655

The H7625, H7635, and H7655 are highly accurate, stable humidity transducers designed for use with HVAC controllers such as the T7350 Thermostat, T775U Remote Humidity Controller, and W7760 Direct Digital Controllers. The Ceramic Technology humidity sensor is not affected by condensation and provides excellent long-term stability.

• Ceramic Technology overcomes the limitations of other resistance based humidity sensors that use water soluble polymer coatings.
• Ceramic Technology allows sensors to recover fully from condensation, fog, and high humidity.
• Highly accurate, repeatable, stable output with negligible hysteresis.
• Temperature compensated output. Zero and span trimmers, and increment/decrement recalibration feature.
• All units have selectable 4-20 mA, 0-10 Vdc, or 0-5 Vdc output. NIST traceable 2%, 3%, and 5% calibration, every sensor calibrated at 3 different points.
• All humidity sensors use the same enclosure as the T7770 sensor, except the H7655A, which uses the T7047-like enclosure.

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

Cat #CommentsApplication TypeAccuracy (% RH)Temperature OutputHumidity Output
H7625A1008Ceramic resistance humidity sensorWall mount2% from 20-95% RH20K ohm NTC4-20mA, 0-5Vdc, or 0-10Vdc selectable
H7625B1006Ceramic resistance humidity sensorDuct mount2% from 20-95% RH20K ohm NTC4-20mA, 0-5Vdc, or 0-10Vdc selectable
H7635A1006Ceramic resistance humidity sensorWall mount3% from 20-95% RH20K ohm NTC4-20mA, 0-5Vdc, or 0-10Vdc selectable
H7635B1004Ceramic resistance humidity sensorDuct mount3% from 20-95% RH20K ohm NTC4-20mA, 0-5Vdc, or 0-10Vdc selectable
H7635C1002Ceramic resistance humidity sensorOutdoor mount3% from 20-95% RH20K ohm NTC4-20mA, 0-5Vdc, or 0-10Vdc selectable
H7655A1001Polymer capacitance humidity sensorWall mount5% from 30-70% RHnone0-10Vdc
H7655B1009Ceramic resistance humidity sensorDuct mount5% from 30-70% RH20K ohm NTC4-20mA, 0-5Vdc, or 0-10Vdc selectable
Application: Humidity and Temperature
Dimensions, Approximate: 5 1/8 in. high, 3 3/16 in. wide, 15/16 in. deep (130mm high, 81mm wide, 24mm deep)
Voltage: 18-36Vdc or 18-28Vac
Operating Temperature Range: -10 F to 160F (-23C to 70C)
Shipping Temperature Range: -40 F to +150 F (-40 C to +65 C)
Operating Humidity Range (% RH): 0 to 100% RH


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