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Martindale TEK300 20mA Loop Calibrator Martindale MARTEK300 P The Martindale TEK300 process control calibrator features sink source and monitor modes for 0 20mA and is ideal for most process control applications as well as general purpose signal injection applications P P The handheld unit is fully portable and has a large 3 frac12 digit LCD display with overload protection for extra safety P Martindale MARTEK300 20mA Loop Calibrator
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