412440-S: Calibration Source Checker

Easy to use pocket checker for simulating Current Loops

Features

Pocket Checkers are easy to use and provide a quick and easy way for checking calibration of meters or controllers
Instantly determine if your device needs calibration or if sensor needs to be replaced
0.1mA accuracy
Current: 4mA, 12mA and 20mA; Overload indication when load exceeds 240Ohm
Complete with calibration cable and 9V battery