Greisinger GHTU-1K-MP Humidity/Temperature Transmitter with 0-1V Output

High-precision humidity and temperature transmitter with capacitive humidity sensor and Pt1000 temperature sensor, delivering 0-1V DC outputs for both parameters. The sensor tube is IP65 rated, while the housing is IP40, and the sensor connects via a 1-meter fixed cable.

Overview

The Greisinger GHTU-1K-MP (model 602650, EAN 4016138845341) is a compact transmitter designed for industrial and HVAC applications. It measures relative humidity from 0 to 100% RH and temperature from -20 to +80°C, converting these into linear 0-1V DC signals. The capacitive humidity sensor ensures fast response, while the Pt1000 element provides accurate temperature readings.

What stands out

• Humidity accuracy of ±2.0% RH (10-90% RH, 10-40°C)
• Temperature accuracy of ±0.3°C (10-40°C)
• Fast response: t90 < 10 s for humidity, < 30 s for temperature (with metal protection cap)
• Wide supply voltage range: 12-30 V DC, low current consumption approx. 5 mA
• Robust sensor tube: Ø 14 mm x 100 mm, IP65 protection

Technical details

• Measurement principle humidity: capacitive
• Measurement principle temperature: Pt1000
• Humidity measuring range: 0.0 to 100.0 % RH
• Temperature measuring range: -20.0 to +80.0 °C
• Output signal humidity: 0-1 V DC (0-100% RH)
• Output signal temperature: 0-1 V DC (-20 to +80°C)
• Supply voltage: 12-30 V DC
• Current consumption: approx. 5 mA
• Response time t90 humidity: < 10 s (with metal protection cap)
• Response time t90 temperature: < 30 s (with metal protection cap)
• Operating temperature (electronics): -20 to +80 °C
• Operating temperature (sensor): -20 to +80 °C
• Protection class sensor tube: IP65
• Protection class housing: IP40
• Electrical connection: screw terminals (up to 1.5 mm²)
• Sensor tube dimensions: Ø 14 mm x 100 mm
• Housing material: ABS
• Cable length (sensor to housing): 1 meter (fixed)

Our verdict

A reliable and accurate transmitter for demanding humidity and temperature monitoring, with linear voltage outputs for easy integration into control systems.