4-20mA Transmitters for Isolated, Reliable Current Loop Solutions

Our range of 4-20mA transmitters offers market-leading performance for isolating and transmitting current loop signals in challenging industrial settings. These devices provide galvanic isolation between input, output, and power, ensuring safe and interference-resistant operation.

Ideal for applications involving pressure, temperature, flow and level sensing, these transmitters guarantee signal integrity and long-term reliability, even in environments subject to electrical noise or voltage surges.

Contact our technical sales team today to find the right transmitter for your system.

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4-20mA Transmitters

Showing 8 of 8 4-20mA Transmitters items

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DSCT36
Dataforth DSCT36
Potentiometer Input DIN Transmitter
DSCT37
Dataforth DSCT37
Thermocouple Input DIN Transmitter
DSCT47
Dataforth DSCT47
Linearised Thermocouple Input DIN Transmitter
DSCT34
Dataforth DSCT34
Linearized 2- or 3-Wire RTD Input Transmitter
DSCT32
Dataforth DSCT32
Current Input DIN Transmitter
DSCP20
Dataforth DSCP20
Programmable 2-Wire Temperature DIN Transmitter – RTD/Thermocouple Input – 4 to 20mA Output
DSCT30
Dataforth DSCT30
Millivoltage Input DIN Transmitter
DSCT31
Dataforth DSCT31
Voltage Input DIN Transmitter
Why Is 4–20mA Still So Common?
The 4–20mA current loop remains one of the most reliable methods of transmitting analogue signals over long distances. Current-based signalling resists noise better than voltage-based methods, making it ideal for factories, utilities and transport infrastructure.

What Should You Check Before Selection?
Key factors include loop power requirements, scaling options and accuracy. For temperature or pressure transmitters, ensure the chosen device has the correct sensor input type and compensation features.

How Do Industrial Variants Add Reliability?
Industrial 4–20mA transmitters include isolation, surge protection and extended temperature ranges. These capabilities protect both sensors and DAQ systems in demanding UK environments such as outdoor substations or trackside enclosures.