HT-670x Series

Description
TrueRH™ HT-670x Series Humidity Transmitters come in both wall or duct mount
packages to meet a variety of sensing application needs. These attractively styled
controllers offer ease of installation and application flexibility.
The transmitter generates a jumper-selectable output signal in either the
4 to 20mA or 0 to 10V range, corresponding to 0 to 100% Relative Humidity (RH).
TrueRH transmitters can measure RH within either ±2% or ±3% accuracy. The 2% models
include a National Institute of Standards and Technology (NIST) certificate of conformance.
The patented All-Polymer™ humidity sensor construction improves resistance to chemical.

HT-6703-0N00W (Wall Mount Humidity Transmitter)                    HT-6703-0N00P (Duct Probe Humidity Transmitter)

Features
• TrueRH technology features patented improvements in circuitry and calibration
techniques
• All-Polymer humidity sensor provides accurate and reliable humidity sensing with
the patented sensing element
• tested and calibrated with equipment certified to be in compliance with National
Institute of Standards and Technology (NIST) guidelines
• jumper-selectable output: 0 to 10 VDC or 4 to 20 mA maximizes application flexibility
• all-plastic material for duct probe improves thermal performance and complies with
Underwriters Laboratories Inc. ® (UL) flammability ratings for plenum use

1. Accessories and replacement parts available for the wall mount humidity transmitter only. (No
accessories exist for the duct probe model.)
2. These foam pads will help prevent drafts from entering the unit through the wall, and make
installation easier when mounting on an uneven surface.
3. Contains 10 original style and 10 new style doors.