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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DSCT30
6 options available
Dataforth DSCT30 Series
Millivoltage Input DIN Transmitter
DSCT31
8 options available
Dataforth DSCT31 Series
Voltage Input DIN Transmitter
DSCT36
4 options available
Dataforth DSCT36 Series
Potentiometer Input DIN Transmitter
DSCT37
8 options available
Dataforth DSCT37 Series
Thermocouple Input DIN Transmitter
DSCT34
6 options available
Dataforth DSCT34 Series
Linearized 2- or 3-Wire RTD Input Transmitter
DSCT32
2 options available
Dataforth DSCT32 Series
Current Input DIN Transmitter
DSCT47
14 options available
Dataforth DSCT47 Series
Linearised Thermocouple Input DIN Transmitter
DSCP20
Dataforth DSCP20
Programmable 2-Wire Temperature DIN Transmitter – RTD/Thermocouple Input – 4 to 20mA Output
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.