Electronics Klein Tools

Klein Tools MM325 Manual-Ranging Multimeter

An everyday meter that shows you which jacks the leads belong in.

Orange digital multimeter on a bench measuring a circuit board, soldering station behind

Klein Tools

MM325 Manual-Ranging Multimeter

Kraang Finds

Best for Circuit troubleshootingbatteriescontinuity and diode checks

The meter you reach for when something on the bench doesn’t work. It covers the everyday checks — voltage, current, resistance, continuity, diodes — and adds a battery test. The best part is the lead alert: small LEDs show which jacks the leads belong in for the setting you’ve chosen, which prevents the classic mistake of measuring voltage with the leads still in the current jack.

Pro tip When you finish a current measurement, move the red lead back to the voltage jack right away. Forgetting it there is a common way to blow a meter’s fuse.

Why we like it

✓Lead-alert LEDs show which jacks to use for the setting you picked
✓Battery test mode for a quick check of cells
✓Kickstand and lead holders on the back for hands-free work

Keep in mind

!Manual ranging — you choose the range on the dial
!DC current only (up to 10 A)

Voltage: Up to 600 V AC/DC
Current: 10 A DC
Resistance: Up to 2 MΩ
Also tests: Continuity, diodes, batteries
Display: Backlit LCD
Safety: CAT III 600 V

Check price on Amazon

As an Amazon Associate I earn from qualifying purchases. If you buy through a link on this page we may earn a small commission, at no extra cost to you. How this works.