Shema Tokovaja Petlja 4 20 Ma | Pro — 2025 |

Can run hundreds of meters without signal loss (unlike voltage, which drops over distance).

Two wires for power and two separate wires for the 4-20 mA signal. shema tokovaja petlja 4 20 ma

The sensor has its own dedicated power source (often AC or high-voltage DC). Can run hundreds of meters without signal loss

Two wires for power (+ and -) and one shared wire for the signal. shema tokovaja petlja 4 20 ma