pros Good quality and good accuracy. Test it at 12 and 24 volt . there is small difference 0.05ma the indication with my multimeter but maybe it's the multimeter fault. the range is from 3,9 to 21ma with 10 turns of a potentiometer. cons The potentiometer needs glue to secure it to the board because with small force disconnect from his base. The display indication is not the real output current because it always has a value even if the output cable is disconnected. So if you want to check if there is a disconnection in a line you have to install multimeter in output. Careful. if the signal has common ground with the power supply when connect the cables connect last the signal cable and when disconnect remove first the signal cable. If you remove first the grd of power supply the display turn off but I measure 42 ma in output (with 24v power and 330 Ω load).

pros Good quality and good accuracy. Test it at 12 and 24 volt . there is small difference 0.05ma the indication with my multimeter but maybe it's the multimeter fault. the range is from 3,9 to 21ma with 10 turns of a potentiometer. cons The potentiometer needs glue to secure it to the board because with small force disconnect from his base. The display indication is not the real output current because it always has a value even if the output cable is disconnected. So if you want to check if there is a disconnection in a line you have to install multimeter in output. Careful. if the signal has common ground with the power supply when connect the cables connect last the signal cable and when disconnect remove first the signal cable. If you remove first the grd of power supply the display turn off but I measure 42 ma in output (with 24v power and 330 Ω load).

pros Good quality and good accuracy. Test it at 12 and 24 volt . there is small difference 0.05ma the indication with my multimeter but maybe it's the multimeter fault. the range is from 3,9 to 21ma with 10 turns of a potentiometer. cons The potentiometer needs glue to secure it to the board because with small force disconnect from his base. The display indication is not the real output current because it always has a value even if the output cable is disconnected. So if you want to check if there is a disconnection in a line you have to install multimeter in output. Careful. if the signal has common ground with the power supply when connect the cables connect last the signal cable and when disconnect remove first the signal cable. If you remove first the grd of power supply the display turn off but I measure 42 ma in output (with 24v power and 330 Ω load).

I bought five of these and measured their outputs (4.0 mA, 10 mA, 12 mA and 20 mA) across a 100 ohm 0.1% tolerance resistor with a decent DVM. The biggest deviation was 0,3 mA at an indicated 20 mA output. Most were within 0.1 mA of the displayed output.

I bought five of these and measured their outputs (4.0 mA, 10 mA, 12 mA and 20 mA) across a 100 ohm 0.1% tolerance resistor with a decent DVM. The biggest deviation was 0,3 mA at an indicated 20 mA output. Most were within 0.1 mA of the displayed output.

I bought five of these and measured their outputs (4.0 mA, 10 mA, 12 mA and 20 mA) across a 100 ohm 0.1% tolerance resistor with a decent DVM. The biggest deviation was 0,3 mA at an indicated 20 mA output. Most were within 0.1 mA of the displayed output.