I'll check when I get home and post the info, the last thing I want to do is have someone break their EZ-B.

I just realised I can't do it without stripping down the power base.

But yes, this image is correct, measure the voltage across here

If its a positive voltage then whichever pad the red (or positive) probe is on is the positive. If it's a negative voltage then whichever pad the red (or positive) probe is on is the negative.

Jeremie may be able to chime in and tell us though (if he sees this)

sorry for late respons.the first pic off the multimeter.on whits number do i set it? and do i put the red pen in dc?

thank you

If it is Rich's last post.... you set the multimeter to DC volts (20 on the yellow mutimeter above)...

As Richard said, set it to DC 20v (top left). I believe the red probe needs to plug in to the red socket on the multimeter, I am not sure what the yellow one (which you pointed an arrow to) does. It should say in the manual for the meter, since all meters are different it's hard to be sure (my meter only has 2 sockets)

ah .the red arrow pointed to socket whit name DC

@Rich that's the setting (yellow plug) to read amps (up to 10amps) that a device may be using... Most of these meter's are not fused on this setting, so use it cautiously.... And yes, plug it into the red socket for all settings except if you're using the 10amp to check a devices draw...

Try it on a battery.

Set the dial to DV 20v (as you showed above) Connect the red probe to the red socket and to the positive terminal of the battery Connect the black probe to the black socket and to the negative terminal of the battery The meter should display the battery voltage.

Note: Make sure the battery is rated at 20v or less. I would test on an AA battery which should show 1.2-1.5v