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The Klein Tools MM325 is a durable, digital manual-ranging multimeter designed for professionals needing reliable AC/DC voltage testing up to 600V, current, resistance, diode, continuity, and battery diagnostics. Featuring lead-alert safety LEDs, a backlit LCD for visibility in low light, and rugged construction to endure drops, it’s engineered for accuracy and convenience in residential, business, and light-industrial settings.

| ASIN | B0B57L9FNL |
| Are batteries included? | Yes |
| Batteries | 2 AAA batteries required. (included) |
| Best Sellers Rank | #179,745 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3,428 in Voltage Testers |
| Brand | KLEIN TOOLS |
| Colour | Orange/ Black |
| Country of Origin | China |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,262) |
| Date First Available | 5 December 2022 |
| Generic Name | Building Material |
| Global Trade Identification Number | 00092644693731 |
| Included Components | Multimeter, Voltage Tester |
| Item Dimensions LxWxH | 23.7 x 12.9 x 9.7 Centimeters |
| Item Height | 3.82 Inches |
| Item Weight | 395 g |
| Item Width | 5.08 Inches |
| Item dimensions L x W x H | 23.7 x 12.9 x 9.7 Centimeters |
| Item model number | MM325 |
| Manufacturer | Klein Tools |
| Maximum Operating Voltage | 600 Volts |
| Measurement Type | Multimeter |
| Min. Operating Voltage | 9 Volts |
| Model number | MM325 |
| Net Quantity | 1.0 Count |
| Number of Memory Sticks | 1 |
| Power Source | Battery Powered |
| Product Dimensions | 23.7 x 12.9 x 9.7 cm; 394.63 g |
| Special Feature | Lead Alert; Backlight; Auto Power-Off; Data Hold |
| Specification Met | Cat Iii 600v Safety Rating |
| Style | Digital |
| UPC | 092644693731 |
| Upper Temperature Rating | 60 Degrees Celsius |
D**.
I needed a good battery tester, having experienced that the usual cheap ones were not very reliable. I decided that I may as well invest in a multimeter that could test batteries. I'm very pleased with this - exceptional quality for the price (YouTube reviews attest to build quality) - and it will test 1.5V / 9V batteries 'under load' to give an accurate remaining voltage reading. You have to use the supplied leads to 'touch' the battery +/-contacts so perhaps not as convenient as many specific battery testers, but this multimeter does have a built-in stand which means you have both hands free.
B**B
I had a cheap multimeter before that basically fell apart. This Klein model seems to be well made and has all functions that I will use. The digital display is easy to read and the automatic shutoff works as advertised - already tested that feature - 🙄. For what I will be doing with this unit, I’m glad I purchased this one.
S**V
Doing its job. Good quality.
G**O
Se siente de buena calidad los materiales, es de facil acceso la pila y los fusibles y es de buen tamaño no esta demasiado grande ni demasiado pequeño
J**D
Bra multimeter, rikligt med funktioner.