Dwyer | Mercoid | WE Anderson | Flotect

Dwyer Series WHP

Series WHP Wireless Humidity/Temperature Sensor

Transmits up to 100 Feet, Battery Operated

The Dwyer Series WHP Wireless Humidity/Temperature Sensors provides flexibility in locating sensors and reduces wiring cost. Using a 418 MHz transmitter, the sensor can transmit data up to 100 feet without the use of a repeater. When coupled with a receiver and output module, the Series WHP can output voltage, current or resistance values for humidity and temperature. Since the unit is battery powered, users can change the location of the sensor by a couple of feet or to a different wall without worry about extra labor cost. With the transmit rate at approximately one reading every 10 seconds, the battery is estimated to last 5 to 8 years.

The duct mount and outside air mount sensors come standard with sintered filters to protect the sensor from particulates. Set point adjustment and/or manual override buttons are available on wall mount sensors.


Dwyer Series WHP Specifications

  • Relative Humidity Range:0 to 100%.
  • Temperature Range:-40 to 185°F (-40 to 85°C).
  • Accuracy:±0.3°C, ±2% RH.
  • Temperature Limits:Ambient: 32 to 140°F (0 to 60°C).
  • Power Requirements:(2) 3.6 V ER14505AA lithium ion batteries, included, user replaceable.
  • Battery Life:5-8 years (approximately).
  • Transmitter Interval Rate:Approximately 10-15 seconds.
  • Housing Material:ABS plastic.
  • Enclosure Rating:UL 94 V-0.
  • Antenna:418 MHz – Built inside enclosure.
  • Weight:Dust/OSA: 1.25 lb (567 g); Wall: 0.25 lb (113 g).
  • FCC Approval:FCC ID# T4F061213RSO.
  • Agency Approvals:RoHS.


Popular Models

WHP-D05Wireless duct humidity/temperature sensor with 5" probe.Duct
WHP-OSAWireless OSA humidity/temperature sensor.OSA
WHP-W00Wireless room humidity/temperature sensor.Wall
WHP-W01Wireless room humidity/temperature sensor with override.Wall
WHP-W10Wireless room humidity/temperature sensor with set point adjustment.Wall
WHP-W11Wireless room humidity/temperature sensor with override and set point adjustment.Wall


Popular Accessories

WM-4SS418 MHz receiver with extended antenna.
WM-PSS418 MHz to 900 MHz repeater with standard antenna.
WM-CSH-5ICurrent output module, 4 to 20 mA, range 0 to 100% RH.
WM-CSF-4ACurrent output module, 4 to 20 mA, range 50 to 90°F.
WM-VSH-1IVoltage output module, 0-10 V, range 0 to 100% RH.
WM-VSF-1AVoltage output module, 0-10 V, range 50 to 90°F.
WM-SSV-07Temperature set point output module, 0 to 10 V.
WM-RSOOverride relay output module, normally open.
WM-RSCWireless override relay output module, normally closed
WM-9SS900 MHz receiver with standard antenna.
WM-9SE900 MHz receiver with extended antenna.