Capacitive humidity sensor HTS401

outdoorindoorwall-mounted

Overview
The HTS401 provides precise humidity and temperature measurement designed for demanding industrial environments. Wide operating range (−40…+80 °C depending on configuration), high accuracy and a protective concept that enables reliable operation in presence of condensation, aggressive chemicals and intensive cleaning.

Key features

• rapidX replaceable sensing module: hot-swap replacement on site in minutes without tools.
• Proprietary protective coating on the sensing element and encapsulated electronics.
• Automatic Recovery (ARC) function to protect the sensing element from chemical exposure.
• Condensation Guard (CG): active heating to reduce condensation risk and maintain signal stability.
• Simple calibration workflow: pre-calibrated rapidX module with accessible inspection certificate (DIN EN 10204-3.1).
• High ingress protection (IP66 / NEMA 4X) and mounting variants: wall, duct or remote probe.
• Analog and digital interfaces (0–5 V, 0–10 V, 4–20 mA, 0–20 mA, RS-485 / Modbus RTU) and configuration via PCS10 software.

Typical applications

• Premium HVAC systems, data centers, swimming pools, outdoor installations.
• Agriculture: greenhouses, livestock facilities, storage and maturation rooms.
• Pharmaceutical industry: cleanroom monitoring.
• Food & beverage: meat and cheese maturation processes.

Operational benefits

• Reliable operation under condensation and chemically loaded environments thanks to ARC, Condensation Guard and protective coating.
• Reduced downtime and simplified calibration using rapidX: on-site replacement in under 10 minutes without tools, no process interruption.
• High measurement accuracy for stable control: up to ±0.95 %RH and ±0.1 °C.
• Onboard calculation of derived quantities (dew point, mixing ratio, enthalpy) to simplify integration into HVAC, cleanroom and agricultural processes.
• Easy system integration via multiple analog outputs and Modbus RTU.

Technical specifications

• Humidity measurement range: 0…100 %RH.
• Humidity accuracy (typical): ±0.95 %RH (subject to conditions; example given for −15…40 °C and below 90 %RH).
• Temperature range (wall mount): −40…60 °C.
• Temperature range (duct mount): −40…80 °C.
• Temperature accuracy: ±0.1 °C.
• Analog outputs: 0–5 V, 0–10 V, 4–20 mA, 0–20 mA (3-wire).
• Digital interface: RS-485 / Modbus RTU.
• Ingress protection: IP66 / NEMA 4X (depending on enclosure variant).
• Sensor technology: proprietary RH/T sensing element with protective coating and encapsulated solder joints.
• rapidX technology: exchangeable pre-calibrated sensing module, hot-swap, high mechanical stability.
• Protection functions: ARC (automatic recovery), Condensation Guard (active heating), encapsulated electronics, anti-corrosion coating.
• Available variants: wall, duct, remote probe, with or without display (optional configurable display).