⚡ Power Your Precision, Own the Jobsite
The Klein Tools MM325 is a professional-grade digital manual-ranging multimeter designed for electricians and serious DIYers. It measures AC/DC voltage up to 600V, DC current up to 10A, and resistance up to 2MΩ, with additional functions for battery, diode, and continuity testing. Featuring a backlit LCD for visibility in low light, LED lead placement alerts for safety, and a rugged build tested to withstand 2-meter drops, this tool combines precision, durability, and convenience. Complete with test leads, kickstand, and optional magnetic hanger compatibility, the MM325 is engineered to enhance accuracy and efficiency on any jobsite.
| ASIN | B0B57L9FNL |
| Batteries | 2 AAA batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | 65,479 in DIY & Tools ( See Top 100 in DIY & Tools ) 163 in Multi Testers |
| Colour | Orange/ Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,259) |
| Date First Available | 5 Dec. 2022 |
| Display style | LCD |
| Finish | Brushed |
| Included components | Multimeter, Voltage Tester |
| Item Package Quantity | 1 |
| Item Weight | 395 g |
| Item model number | MM325 |
| Manufacturer | Klein Tools |
| Material | Blend |
| Measurement Accuracy | +/- 2% |
| Part number | MM325 |
| Pattern | Tester |
| Power source type | Battery Powered |
| Product Dimensions | 23.7 x 12.9 x 9.7 cm; 394.63 g |
| Shape | Rectangular |
| Size | One Size |
| Special Features | Lead Alert; Backlight; Auto Power-Off; Data Hold |
| Specification met | Cat Iii 600v Safety Rating |
| Style | Protection,Safety |
D**.
For a few pounds more than a battery tester I have a reliable multimeter
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.
M**.
Perfect for all my jobs
This is the second multimeter I have purchased. I wanted to test an earthing sheet and the one purchased from Halfords wouldn’t test low enough. This one did the job as much more accurate and a much sturdier feeling device. It has since proved itself again with vehicle fuse checking saving me garage costs. Would thoroughly recommend.
A**A
Amazing Multimeter for the Price
Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Tester: Love my new Klein multi-meter, very accurate readings, nice clear screen, 'normal' batteries, and the leads are good quality. I bought an off-brand hard fabric case for it to keep the leads in good nick. Lovely multi-meter, and just as good as the bigger more-expensive "F" brand units.
P**M
Great
Good quality.
A**F
First class
Excellent meter, great price too!
V**W
Good multimeter
As described
G**N
A quality product
A well designed quality product with clear, simple controls.
J**.
Very good meter.
Brilliant of kit
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.
U**1
High quality
Trustpilot
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