Good Product, no battery included nor does it work on 1.5 V battery compartment provided. With 24 VDC external input, works fine. The digital meter reads actual current sourced accurately. Pot is single turn, not multi turn, control is coarse hence.

Good Product, no battery included nor does it work on 1.5 V battery compartment provided. With 24 VDC external input, works fine. The digital meter reads actual current sourced accurately. Pot is single turn, not multi turn, control is coarse hence.

Good Product, no battery included nor does it work on 1.5 V battery compartment provided. With 24 VDC external input, works fine. The digital meter reads actual current sourced accurately. Pot is single turn, not multi turn, control is coarse hence.

This device creates a constant current by using a voltage regulator in current feedback mode. The potmeter is a wirewound type and conducts the complete current. The 3.7v ! battery is for the numeric readout. It would have been nice if that was mentioned in the text, the I would have bought that one also. I was expecting a 1.5V AA. Buy a 3.7 V instead.

This device creates a constant current by using a voltage regulator in current feedback mode. The potmeter is a wirewound type and conducts the complete current. The 3.7v ! battery is for the numeric readout. It would have been nice if that was mentioned in the text, the I would have bought that one also. I was expecting a 1.5V AA. Buy a 3.7 V instead.

This device creates a constant current by using a voltage regulator in current feedback mode. The potmeter is a wirewound type and conducts the complete current. The 3.7v ! battery is for the numeric readout. It would have been nice if that was mentioned in the text, the I would have bought that one also. I was expecting a 1.5V AA. Buy a 3.7 V instead.