Overview Reviews Product Description Relative Humidity, RH Outputs: 0-5, 0-10 VDC & 4-20mA (Default), Duct, ± 2% Accuracy, 20,000 Ohm Thermistor, NEMA 4X Enclosure, NIST Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × ACI ACI A/RH2-20K-D-4X-NIST Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments