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A/RH5-D 5% Duct Relative Humidity Sensor by ACI

Manufacturer: ACI
Availability: 0 in stock
Minimum Order Quantity is 1
Products specifications
Attribute nameAttribute value
RH SensorCapacitive with Hydrophobic Filter
RH Output4~20 mA, 0-5 Vdc, 0-10 Vdc
Error %5
Supply Voltage12~40 Vdc, 15~40 Vdc, 18~28 Vac, 18~40 Vdc


The ACI Relative Humidity Duct utilizes a thermoset polymer capacitive sensing element with a factory fitted hydrophobic filter to improve its moisture resistance

  • The sensing elements multilayer construction also provides excellent resistance in applications where dust, dirt, oils and common environmental chemicals are found
  • The RH duct sensors include on board DIP switches which allow the user to select the desired output signal and can be powered by AC
    or DC power sources
  • Each unit also contains 0%, 50%, and 100% test options to verify that the transmitter is both working and wired properly
  • Field calibration can be performed by using the increment and decrement calibration DIP switches without the need to replace the sensing element
  • These enhancements provide increased flexibility and outstanding long-term reliability without the need to replace the sensors in the field
  • Duct configurations feature a weatherproof Euro style enclosure with a gasketed cover and conformally coated circuit boards for increased moisture resistance in high humidity environments
  • The sensor is protected by a stainless-steel sintered filter. Three point NIST Calibration Certificates are available
  • Applications:
    • Humidification
    • Dehumidification
    • Supply / Discharge / Return Air
    • Economizers
    • Clean Rooms
    • Data Centers
    • Process Control
    • Schools
    • Hospitals
    • Office Buildings
  • Models:
    • A/RH5-D: Relative Humidity, RH Outputs: 0-5, 0-10 VDC & 4-20mA (Default), Duct, ± 5% Accuracy, Euro Enclosure
    • A/RH5-D-BB: Relative Humidity, RH Outputs: 0-5, 0-10 VDC & 4-20mA (Default), Duct, ± 5% Accuracy, NEMA 3R Enclosure