Carlo Gavazzi ST-03 - Sensor Tester

The fastest way to verify the main function on your sensor. The tester can be used for: Namur (EN 50 227), 2-wire DC, 3-wire DC and 4- wire DC. Connect your sensor to the terminals on the sensortester. The sensor type (NPN or PNP) and output status NO (normally open) and (normally closed) is shown on the correspondent LED. Red LED for NPN and green for PNP. A buzzer will tell you if the output is active.