Contrinex Sensor Tester - this item has now been discontinued.

For a significantly up-graded version please see the ATE-0000-010 which has a much higher 100mA current capacity, a longer duration of up to two hours, even at a 50mA consumption, plus an extension of the auto-switch off to 120 seconds.  This allows for multi-stage set-up of some sensors, especially photoelectric formats, to be correctly set-up and adjusted during testing.

The new tester is fully rechargeable using a commonly available phone charger (not supplied).