Cleanroom Control and Environmental Monitoring Systems

Temperature and Humidity Transmitter

A combined wall or duct transmitter that delivers matched temperature and relative-humidity signals from one serviceable sensing assembly.

Combined T and RH Measurement
Matched Dual Outputs
Replaceable Probe Filter
Local Display Option

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Product Introduction

The temperature and humidity transmitter places a stable temperature element and capacitive humidity sensor in the same aspirated probe so both variables represent the same air sample. Internal electronics compensate and linearize the measurements, then provide separate analog signals or a digital network value set. A replaceable filter protects the probe, while an optional display shows temperature, relative humidity and derived dew point locally. Wall, duct and remote-probe configurations address different cleanroom and AHU measurement locations.

Key Features

Co-located temperature and humidity elements measure the same local air sample.

Separate calibrated outputs simplify connection to environmental monitoring and HVAC controls.

Replaceable probe filters protect the sensing assembly without replacing the transmitter body.

Optional display presents temperature, RH and derived dew point at the installation location.

Customer Product Concerns

Temperature and humidity values become difficult to interpret when they come from different locations, response times or sensor housings.

Separate sensors report conditions from slightly different air zones.A combined probe measures both variables from one shared air sample.

Humidity drift cannot be distinguished from temperature-driven RH change.Synchronized temperature and RH trends reveal whether moisture content or temperature caused the shift.

Probe contamination requires replacement of the entire transmitter.A serviceable filter and replaceable probe option reduce maintenance scope.

Commissioning staff cannot verify the local reading without a laptop.An optional display provides immediate temperature, humidity and dew-point values.

Typical Applications

Cleanroom environmental monitoringAHU supply and return ductsHumidity-controlled storage suitesLaboratory HVAC control

Technical Parameters

Typical construction for a combined cleanroom temperature and humidity transmitter is shown below.

Core Material	Platinum temperature element and capacitive polymer RH sensor in polycarbonate housing with optional stainless probe
Panel Thickness	35-60 mm transmitter depth
Effective Width	100-150 mm wall housing width
Maximum Length	Remote or duct probes up to 400 mm
Steel Facing Thickness	0-0.8 mm; optional 304 stainless probe tube
Core Density	1180-1220 kg/m³ for polycarbonate housing components
Thermal Conductivity	0.19-0.22 W/(m·K) for polycarbonate enclosure material
Surface Finish	Smooth white housing with black display window and satin stainless probe option
Joint Type	Wall base or duct flange with removable filtered probe and pluggable output terminals
Customization	Available based on the intended application and operating environment.

Available Options

Wall, duct or remote probeDual analog outputsModbus or BACnet communicationLocal dew-point display

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