






Klein Tools Electrical Test Kit
- Electrical Test Kit with different tools for every job
- Digital Multimeter or measuring AC or DC voltage and current
- Voltage and flashlight combination tester for low voltage applications
- ET45 and RT210 meters for AC outlets and GFCI receptacles
- Batteries Included?: Yes
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Description
Klein Tools MM320 Electrical Test Kit
All in One Kit to Ensure and Measure Residential Electrical Safety
The Klein Tools MM320 Electrical Test Kit was designed to be used by contractor, electrical and utility professionals for a wide variety of tasks. Each meter or device that comes with this kit is used to test or measure AC and DC voltages commonly found in US residential homes and businesses. Whether testing AC currents, resistance, outlets or GFCI receptacles, the MM320 Kit can get the job done.
MM320 Digital Multimeter
The Klein Tools MM320 Digital Multimeter is a manual ranging meter that can measure AC or DC voltage, resistance and current. Not only can this meter be used with wires and cables, but also batteries, diodes and continuity. This meter is equipped with a data hold button for capturing and holding a stable reading for ease of documentation and accurate measurement. It also has a built-in stand in the back so the technician can easily test and read measurements at the same time.
NCVT-3P No-Contact Voltage Tester
The Klein Tools NCVT-3P Voltage Tester with Flashlight is an AC voltage no-contact tester with a flashlight that can work together with or separately from the tester. Detects voltage from 12 - 1000V, this meter can fit in almost any pocket, and is perfect for tight spaces. Designed with safety certifications including waterproofing, dust-proofing, and a 2 meter drop resistance a priority, this voltage meter can endure extreme use on a variety of job sites.
ET45 and RT210 Testers
The Klein Tools ET45 and RT210 Meters are meters for standard US style outlets and receptacles. The ET45 is capable of testing AC and DC power at four standard voltage levels, does not require batteries, and has built-in spaces on its back for its test leads to be stored away safely. The RT210 is an outlet and GFCI tester to ensure proper operation of the ground fault protective device in place. It can also identify common outlet wiring issues before the job is complete.
- Notable Features
- » Proudly made in the USA

- » All inclusive electrical test kit with four different testing meters
- » Specifically designed for electrical safety tests and monitoring
- » Saves time and money by having all devices in one kit
- » MM320 Digital Multimeter - measures AC and DC voltage, current, resistance
- » NCVT-3P - flashlight and dual range no-contact AC voltage tester
- » ET45 - AC voltage tester for commonly used US residential voltages
- » RT210 - GFCI and standard receptacle wiring problem identifier
- » Everything comes in a padded carrying pouch for security in transit
- » All required batteries and leads needed are provided in kit
- » Meets multiple safety certifications and standards
Item Details
| Brand | Klein Tools |
| SKU | KLEIN-TOOLS-MM320KIT |
| Manufacturer Part Number | MM320KIT |
| UPC | 92644693403 |
| Color | Orange |
| Length | 6.39 in (162 mm) |
| In the Box | Batteries, Carry Bag, Test Leads, User Manual |
Specifications
| Primary Material | ABS |
| Secondary Material | Polycarbonate |
Power Details
| Batteries Included? | Yes |
Unit Dimensions
| Length | 6.39 in (162 mm) |
| Width | 3.12 in (79 mm) |
| Height | 1.8 in (46 mm) |
| Weight | 8.2 oz (232 g) |
Certifications & Transport
| Certifications/Standards | ANSI, CE, RoHS, UL |
| Country Of Origin | China |
Packaging/Shipping Dimensions
| Length | 13 in |
| Width | 8 in |
| Height | 3 in |
| Shipping Weight | 1.6 lb |
Documents
Additional Details
| Packaging | Retail Packaging |
| Warranty |
Klein Tools Limited Warranty Battery Junction Warranty |
| Return Policy | Return Policy |
Bright Buys
- Trusted and reliable; consistently rated as a top customer pick for LED flashlights
- Superior 1,600mAh capacity means longer runtimes and less frequent battery changes
- Optimized for both high and low drain devices
- State-of-the-art automated production lines ensure the highest quality and safety protections
- Ideal for low-drain applications that require a primary battery to provide constant power
- 10-year shelf life - stock up for emergencies!
- The best choice for consistent power, great in low-drain devices like remotes
- Safe and reliable - capable of performing in high or low temperatures
- 225mAh capacity drives long runtimes for watches and electronics
- CR2032 coin cells packed with 3V of power
- Convenient 6-piece retail card provides backup batteries
- Easily replaceable primary lithium cells
- Top recommended battery for Apple AirTags
- 11-in-1 card sized tool fits in your wallet or on a keychain!
- Packed with handy tools including a screwdriver & 7 wrench settings
- Serrated saw and straight-edge knife for quick cutting jobs
- Can + bottle openers for campsite meals or end-of-shift relaxation
- Independent 4-slot charging for different batteries
- Touch screen control provides user-friendly operation
- 4 working modes for charging, testing batteries, and more
- Compatible with Li-ion, Ni-Cd, & NiMH batteries
- Quick Charge 3.0 technology enables fast and efficient device charging
- USB compatibility supports a wide range of electronic devices
- Compact adapter design makes it ideal for travel and everyday use
- Intelligent charging management helps optimize power delivery
- Universal cable to consolidate chargers for work, home, or EDC use
- USB-C, Micro-USB, and Lightning plugs for various electronics
- USB-C input with USB-A adapter for use with any USB power source
- 3.93ft long cord, allowing you to use your phone during recharging!
- Premium materials for durability and fast charge speeds
- Fits flashlights w/ diameter of 24-32mm & length of 130mm-170mm
- Great for EDCs, tactical lights, slim lights, & more!
- Durable and flexible nylon material keeps lights secure
- 33g weight won't drag you down!
- Portable powerhouse - emits a 1148ft beam from a 3.4in light!
- Strobe and SOS modes accessible for emergencies
- Dual-fuel power - swap in a CR123A when needed
- Strong magnetic tailcap for hands-free repair jobs
- USB-C port offers seamless recharging from anywhere!
- 3,000 lumens and a 250-meter throw - fierce illumination to light up your backyard
- Multiple output modes are accessible via easy side switch operation
- Strobe, SOS, and beacon modes offer distinct signaling capability
- High-capacity battery supports the light with a maximum 227-hour runtime



