COMET P0102 – 4-20mA Transmitter with 120 mm Duct Probe, Temperature -30 to +60 °C

COMET P0102 – 4-20mA Transmitter with 120 mm Duct Rod Probe for Temperature –30 to +60 °C, IP65, galvanically isolated 

The COMET P0102 is a robust 4-20mA temperature transmitter with an integrated 120 mm duct rod probe – the classic solution for precise temperature measurement directly in the airflow of ventilation and air-conditioning systems (HVAC), air ducts, supply or exhaust systems, climate chambers, or process air. With a galvanically isolated current output (4-20 mA) and high long-term stability, it is ideal for connection to PLCs, building control systems, controllers, recorders, or remote control technology – even over long distances without signal loss.

The internal temperature sensor measures from –30 to +60 °C with an accuracy of ±0.4 °C and high resolution (0.1 °C). The 120 mm rod probe extends deeply into the duct and delivers representative values even at high airflow velocities. The output is freely scalable – you define the measuring range and output value via PC (e.g. 4 mA = –30 °C, 20 mA = +60 °C). The weatherproof IP65 housing makes the P0102 a reliable partner for demanding use in ducts and ventilation systems (–30 to +80 °C).

The galvanic isolation protects against ground loops and interference. The sensor features long-term stability and is available with a traceable calibration certificate (according to EN ISO/IEC 17025) – top quality for critical applications. Power supply 9–30 V DC (typical 24 V) – simple and flexible. No external probe required – all in one device for quick installation and reduced error sources.

Why COMET P0102 is the professional duct temperature transmitter:

• 120 mm duct rod probe – optimal measuring position in the airflow
• Galvanically isolated 4-20mA output – interference-proof & PLC-compatible
• High precision – ±0.4 °C from –30 to +60 °C
• Free scaling – configurable via PC (measuring range & output)
• IP65 housing – weatherproof for outdoor & duct applications
• Wide power supply range – 9–30 V DC (typical 24 V)
• Long-term stable & maintenance-free – with calibration certificate

Technical data P0102:

• Temperature measuring range: –30 to +60 °C (±0.4 °C)
• Resolution: 0.1 °C
• Output: 4-20 mA, galvanically isolated
• Probe length: 120 mm
• Power supply: 9–30 V DC (typical 24 V)
• Operating temperature: –30 to +80 °C
• Protection rating: IP65
• Dimensions: 88.5 × 94 × 160 mm
• Weight: approx. 140 g
• Warranty: 3 years

Perfectly suited for:

• Ventilation & air-conditioning systems (HVAC)
• Air ducts & supply air measurement
• Climate chambers & drying systems
• Data centers & server rooms (supply air)
• Production & storage halls
• 4-20mA connection to PLC/BMS
• Demand-controlled ventilation
• Integration into existing analog systems

Installation & commissioning – done in minutes

Mount the device onto the duct (hole Ø 25 mm), connect power supply (9–30 V DC) and 4-20mA loop – done! Configure output via PC (COMET software) for measuring range & output value. No calibration effort required when replacing the device.

Summary:

• Remote transducer with temperature sensor on 120 mm rod
• Suitable for indoor and outdoor use
• Integrated temperature sensor

Scope of delivery:

• P0102
• User manual
• Traceable calibration certificate