COMET T3413 – Duct Transmitter for Humidity and Temperature

COMET T3413 Duct Humidity + Temperature RS485      

The COMET T3413 is a proven professional duct transmitter for highly accurate measurement of temperature and relative humidity directly in the airflow of ventilation, air-conditioning, and process ducts. The 150 mm stainless steel probe with protective filter extends deep into the duct, ensuring representative measurement values even at high airflow speeds and temperatures up to +125 °C.

This makes the T3413 ideal for HVAC systems, supply and exhaust air ducts, drying processes, production halls, greenhouses, data centers, and wherever precise climate data from ducts are required for control, monitoring, or energy optimization.

In addition to temperature and humidity, it directly provides all key derived values: dew point, absolute humidity, specific humidity, mixing ratio, and specific enthalpy – without additional calculation. The galvanically isolated RS485 interface with Modbus RTU (factory default) allows easy integration into any building automation, PLC, or SCADA system.

The fully IP65-protected housing, large dual-line display (switchable), and the legendary COMET long-term stability have made the T3413 a long-standing standard in professional ventilation technology.

Why the COMET T3413 is the first choice for duct measurement:

• 150 mm duct probe – optimal position in the airflow
• Temperature range up to +125 °C – also suitable for warm-air ducts
• Full IP65 protection – permanently resistant to condensation and dust
• RS485 Modbus RTU as standard – plug-and-play compatibility
• All humidity parameters integrated – dew point available directly
• Large dual-line display – easy to read, switchable
• Highest accuracy – Temp. ±0.4 °C | Humidity ±2.5 %RH
• Galvanically isolated RS485 – interference free even over long distances
• Fast response time thanks to stainless steel mesh filter
• 3-year warranty – proven COMET quality

Technical data:

• Temperature range: –30 to +125 °C (±0.4 °C)
• Humidity: 0 to 100 %RH (±2.5 %RH, 5–95 % at 23 °C)
• Dew point: –60 to +80 °C (±1.5 °C at T<25 °C and RH>30 %)
• Resolution: 0.1 °C / 0.1 %RH
• Probe: 150 mm stainless steel with protective filter
• Communication: RS485 galvanically isolated, Modbus RTU (standard), ARION, Advantech ADAM
• Power supply: 9–30 V DC
• Protection class: IP65 (electronics), IP40 (sensors)
• Dimensions: 88.5 × 250 × 39.5 mm
• Weight: approx. 150 g
• Warranty: 3 years

Perfect for:

• Ventilation and air-conditioning systems (HVAC)
• Supply and exhaust air ducts
• Drying systems and warm-air processes
• Production and storage halls
• Greenhouses and agricultural applications
• Data centers and technical rooms
• Pharmaceutical and food production
• Energy optimization and EnEV compliance

Installation – quick and secure

Drill a 25 mm hole in the duct, insert the probe, fix it using a flange or clamp, connect the cable – ready for operation in just a few minutes. The electronics remain protected outside the duct.

Summary:

• Humidity and temperature transmitter
• Suitable for indoor and outdoor use
• Duct installation
• Sensors for relative humidity and temperature (150 mm shaft)
• Measured values are also converted into additional humidity parameters: dew point temperature, absolute humidity, specific humidity, mixing ratio, and specific enthalpy.

Scope of supply:

• T3413
• User manual
• Traceable calibration certificate
• Free TSensor software for transmitter configuration