Klein Tools, a solid US make and supplier of high-quality electronics tools for professionals as well as amateurs alike with their chunky MM700 digital multimeter built to handle any task from solar units all the way down through CAT IV three phase power circuits. This affordable meter has most functions one would need in order to test these types of things out – such being able not only measure amps or Celsius degrees Fahrenheit but also have options available including low impedance mode.
Review of the MM700 Multimeter
Klein Tools MM700 Multimeter, Auto-Ranging, TRMS, AC/DC Voltage and Current
Reasons To Buy
✓Temperature input and microamps, ideal for HVAC work
✓Good price for a Klein
✓Package includes alligator clips also
✓Has MAX/MIN & manual ranging mode
✓Has Backlit screen
Reasons To Avoid
✗Fairly slow on continuity/ranging
- Auto / manual ranging
- Measures AC/DC voltage to 1000V
- Measures AC/DC current to 10A
- True RMS (TRMS) for better AC accuracy
- Resistance to 40MΩ
- Capacitance, frequency and duty cycle
- Handy temperature input
- Continuity and diode tests
- CAT-IV 600V rating
- Low Impedance (LoZ) mode
- Dimensions: 7″ (178mm) x 3.5″ (89mm) x 2.1″ (53mm)
- Weight: 14.6oz (414g)
Review of the MM700
Klein’s MM700 multimeter offers a great deal for the money. It includes all standard test ranges and some more advanced ones, such as Max/Min or low impedance tests that are usually found on higher end models costing much less than this one.
The device’s range, accuracy and resolution are pretty good. For example it can measure down to single digit ohms with a sensitivity of 40MΩ or higher which provides an accuracy within 0.1%. The best case scenario for capacitance extends into the nano farad.
The multimeter is an auto-ranging device, which means you don’t need to select ranges manually. Most of the positions on this dial have additional functions that can be selected by pressing down the SEL (option) button and switching between DC or AC microamps with just one press.
Monitoring the current draw of individual components within a circuit can be useful when trying to determine what is causing an interference or voltage drop. The modes that measure high/low readings are especially helpful for this purpose, as they will show you if there’s anything nearby causing false positives on your measurements with LOZ (low impedance) mode enabled too.
Design & Build
Klein has always put quality first, so it’s no surprise that their multimeter is tough too. The MM700 can withstand drops up to 6 feet and its ingress protection rating of IP42 means you don’t have anything else sitting around vulnerable when working with this device in wet environments or outside on dirty ground – perfect for any jobsite.
Klein has created an MM700 that is jam-packed with features. At 4000 counts, the resolution isn’t anything special but it does have a backlit display and stays lit for around three minutes! There’s also a responsive bar graph which shows analog style response refreshing 12 times per second.”
Performance of the MM700
Fluke has always been known for its high-quality and responsive instruments, but these are not present with the tested product. The low battery indicator often goes unnoticed even by seasoned electricians which can lead to tools being left unused on work sites or in vehicles due lack of power supply while there’s no need at all.
The Klein MM700 has two fuses to protect it from overheating. The 10A fuse for high-current circuits and the 500mA microammeter protection circuit, which can withstand up to 8kV of surges in theory.
The product has an excellent rating on Amazon, being voted up for its range of features and accuracy. It’s not Fluke but if you’re after a cheap alternative to their 28II range then this one will do just fine.
Alternatives: The MM1000 and 600 are great if you don’t need true RMS, but the Extech MA145 is a better bet for those into heavier industry.