Category
Temperature Transmitters for HVAC and BMS
Temperature transmitters for room, duct, pipe and outdoor measurement in HVAC and BMS.
A temperature transmitter for HVAC sends room, duct, pipe or outdoor readings to the BMS as a standard signal, which the system needs to run heating, cooling and ventilation efficiently. Produal's LL series covers every mounting location, and settings can be changed on site with the ML-SER commissioning tool.
6 Products · Temperature Transmitters
Cable Temperature Transmitter TEKY4 LL
Duct Temperature Transmitter TEK LL
Immersion Temperature Transmitter TEAT LL
Outdoor Temperature Transmitter TEU LL
Room Temperature Transmitter RTX
Touchscreen Room Transmitter RTX-D
Selection guide
Temperature Transmitters for HVAC and BMS Guide
Temperature transmitter or passive sensor for HVAC?
- Transmitter: use one when the cable run to the controller is long or the controller needs a 4 to 20 mA signal, since the transmitter's electronics keep the signal accurate over distance and resist interference.
- Passive sensor: for short runs to a controller with resistance inputs, a passive sensor is simpler and cheaper to install. See Passive Temperature Sensors for BMS.
Products on this page
- TEK LL: duct temperature, with an adjustable flange for the right insertion depth.
- TEAT LL: heating water temperature, installed in a pocket so the sensor never contacts the water directly.
- TEKY4 LL: a cable transmitter for cold spaces.
- TEU LL: outdoor temperature for weather-compensated control.
- RTX: a room transmitter with motion detection (PIR).
- RTX-D: a touchscreen room transmitter with a 2.8 inch display.
Commissioning on site
- Tool: the ML-SER tool changes settings and, on models such as the TEU LL and TEKY4 LL, allows one-point field calibration, so an installer can fine-tune the transmitter without returning it to the factory.
- Where it matters most: outdoor and cold-space models, where drift from the factory setting is more likely over the transmitter's working life.
- Benefit: keeping commissioning on site also shortens the time between installing a device and having it reporting correctly to the BMS.
FAQ
Common questions
What is the ML-SER tool used for?
It's Produal's commissioning tool for the LL series of temperature transmitters. It changes settings on site and, on models such as the TEU LL and TEKY4 LL, allows one-point field calibration, so an installer can fine-tune accuracy without sending the device back to the factory.
Which transmitter suits heating water temperature?
The TEAT LL, which is installed in a pocket in the pipework to measure heating water temperature. This protects the sensing element from direct contact with the water while still giving an accurate reading for boiler or heat exchanger control.
Do you have a room temperature transmitter with a display?
Yes. The RTX-D touchscreen room transmitter has a 2.8 inch display showing live temperature, which suits rooms where occupants or facilities staff benefit from seeing the reading directly rather than checking the BMS.
Why does the TEK LL have an adjustable flange?
Duct sizes vary, so the adjustable flange lets you set the right insertion depth for the sensing tip to sit in the airstream rather than too close to the duct wall, which would give a reading skewed by wall temperature.
Which model suits an unheated or cold space?
The TEKY4 LL, a cable temperature transmitter designed for cold spaces such as unheated plant rooms or cold stores, where a standard duct or immersion transmitter's housing might not be appropriate.
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