Selling an extra DM 501A module. I upgraded and have not been using this.
DC is spot on compared to my calibrated meter. Resistance is spot on. AC is not accurate and measures low. I never used current measurement, so I'm not sure about accuracy.
Photos show 9V battery, 4.7K Ohm resistor and the AC display is 1K Hz @ .775V. As you can see, it measures low.
Asking $100 or reasonable offer plus shipping from 17403.




DC is spot on compared to my calibrated meter. Resistance is spot on. AC is not accurate and measures low. I never used current measurement, so I'm not sure about accuracy.
Photos show 9V battery, 4.7K Ohm resistor and the AC display is 1K Hz @ .775V. As you can see, it measures low.
Asking $100 or reasonable offer plus shipping from 17403.




