Martindale TEK 300, Loop Calibrator

Designed for process control instrumentation and general purpose signal injection applications. Enables the user to test, calibrate and troubleshoot in a variety of environments. Features include

Sink, source and monitor modes for up to 20mA
Overload protection for additional safety
ABS case with clear 3 digit LCD display
Battery condition and error indication LEDs
Requires 2 x PP3 alkaline batteries
Test leads not included

Capable of withstanding DC voltages up to 50V but can be damaged by AC inputs.