Keep a eye on the power from your machine with this mA-meter.
Recommended max power is 18mA for the 40w tubes to prevent early aging or overpowering the tube.
All meters we sell is calibrated and checked to confirm correct readings. Many meters from china do measure up to 20% wrong, all our meters has a maximum error reading of 3%
(we get the bad ones too, we throw them away and only sell the good ones)
How we test our mA-meters.
Every meter is connected to a variable dummy load switching between 20-30mA for at least two days. We test 20 meters at the time.
After the test we measure each meter with oscilloscope and a Fluke mA-meter with more dummy load to confirm it shows perfect values 0-30mA and no dead spots.
You do not find this kind of testing at other sellers!
The meters we send you are 100% great!