Easy to use pocket checker for simulating Current Loops

current loop checker is a low cost, pocket-sized checker for simulating current loops. Featuring the ability to instantly determine if your device needs calibration, the Extech 412440-S current loop checker is ideal for checking calibration and as a current source for setting up engineering units on a process indicator or controller. The Extech 412440-S current loop checker simulates output ranges of 4mA, 12mA, and 20mA from the transmitter.

Bright red LEDs indicate the simulation output or the battery status. The Extech 412440-S current loop checker is accurate to 0.1mA, and there is overload indication when the load exceeds 240Ω. The compact case features a push button output selector switch.