COMET T0211 – 0-10V Transmitter with External Cable Probe for Temperature and Humidity

COMET T0211 – 0-10V transmitter with external cable probe for temperature –30 to +105 °C, humidity 0–100 %RH, dew point, 24 V AC/DC, IP65

The COMET T0211 is a versatile 0-10V transmitter with an external cable probe (1 meter, optional 2 or 4 m) for temperature, relative humidity, and dew point – the ideal solution for precise climate monitoring in outdoor and indoor environments, building automation, BMS systems, warehouses, greenhouses, cold rooms, or process plants. With an analog 0-10V output and high long-term stability, it is perfect for connection to controllers, recorders, PLC inputs, or remote monitoring systems – even over long distances without signal loss.

The external combined probe measures temperature from –30 to +105 °C (±0.4 °C) and humidity from 0 to 100 %RH (±2.5 %RH from 5–95 % at 23 °C). Dew point is calculated internally (±1.5 °C at T<25 °C and RH>30 %). In addition, all other humidity variables are available: absolute humidity, specific humidity, mixing ratio, and specific enthalpy. The output is freely scalable – you define via PC the measurement range and which quantity (T, RH, Tdp, etc.) is output. The flexible cable probe allows optimal placement even in difficult measuring locations.

The robust IP65 housing (electronics) and IP40 sensor make the T0211 a reliable partner for tough environments (–30 to +80 °C). Galvanic isolation protects against ground loops and interference. The sensors feature long-term stability and are available with a traceable calibration certificate (according to EN ISO/IEC 17025) – top quality for critical applications. Wide power supply range 15–30 V DC or 24 V AC – compatible with most HVAC and automation systems.

Why the COMET T0211 is the professional 0-10V T+RH transmitter:

• External cable probe 1–4 m – maximum flexibility for installation
• Freely scalable 0-10V output – for controllers & PLC inputs
• 3-in-1: Temperature + Humidity + Dew point – all humidity parameters available
• High accuracy – Temp. ±0.4 °C | Humidity ±2.5 %RH | Dew point ±1.5 °C
• 24 V AC / DC supply – compatible with HVAC systems
• IP65 electronics + IP40 probe – weatherproof & durable
• Long-term stable & maintenance-free – with calibration certificate

Technical data T0211:

• Temperature range: –30 to +105 °C (±0.4 °C)
• Relative humidity: 0 to 100 %RH (±2.5 %RH from 5–95 % at 23 °C)
• Dew point: –60 to +80 °C (±1.5 °C at T<25 °C and RH>30 %)
• Output: 0-10 V
• Resolution: 0.1 °C / 0.1 %RH
• Probe cable length: 1 meter (standard), optional 2 or 4 meters
• Power supply: 15–30 V DC or 24 V AC
• Operating temperature: –30 to +80 °C
• Protection class: IP65 (electronics), IP40 (probe)
• Dimensions: 88.5 × 145 × 39.5 mm; probe Ø 18 mm, length 88 mm
• Weight: approx. 210 g
• Warranty: 3 years

Perfect for:

• Building automation & BMS systems
• Indoor & outdoor climate monitoring
• Warehouses & production halls
• Greenhouses & agriculture
• Data centers & server rooms (outdoor air)
• 0-10V connection to controllers & displays
• Humidity & temperature control
• Integration into existing 0-10V systems

Installation & commissioning – done in minutes

Mount the device, connect power supply (15–30 V DC or 24 V AC) and 0-10V output, place the probe at the desired location – done! Configure the output via PC (COMET software): select the parameter and range to be output. No calibration required when replacing the probe.

Available versions:

• Cable length 1 meter
• Cable length 2 meters
• Cable length 4 meters

Summary:

• Humidity and temperature transmitter
• For indoor and outdoor use
• Humidity and temperature probe on cable
• The measured values are converted into additional humidity units: dew point temperature, absolute humidity, specific humidity, mixing ratio, and specific enthalpy.

Scope of delivery:

• T0211 – depending on cable length (see above)
• User manual
• Traceable calibration certificate
• Free TSensor software for transmitter configuration