Description
Klein Tools MM320KIT – Digital Multimeter Electrical Test Kit

- Digital Multimeter measures up to 600V AC/DC voltage, 10A DC current and 2-ohm resistance
- Meter also test batteries, diodes, and continuity
- Voltage Tester NCVT-3P has dual-range capabilities to detect from 12 to 1000 V AC or 70 to 1000V AC for a broad variety of low-voltage or standard voltage applications
- Bright flashlight illuminates work area and may be used independent of NCVT-3P voltage detection function
- ET45 tests AC voltages from 28V to 240V AC at four useful levels aligned with commonly used residential voltages, and DC voltages from 32V to 330V at four common levels
MM320 Digital Multimeter
Manual-Ranging
- AC/DC Voltage, Current, and Resistance
- Tests Batteries, Diodes, and Continuity
- Auto Power-Off

The MM320KIT Digital Multimeter Electrical Test Kit from Klein Tools is designed with reliability and safety in mind. This comprehensive kit comes with MM320 Digital Multimeter, NCVT-3P Non-Contact Voltage Tester with Flashlight, ET45 Voltage Tester, RT210 GFCI Receptacle Tester, a padded storage pouch and all required batteries. All offered in one kit for value and convenience.

ET45 Electronic Voltage Tester
Test voltage at four
AC/DC LEVELS:
AC: 24V, 48V, 120V, 240V
DC: 32V, 64V, 160V, 330V
TEST LEAD HOLDERS
Spaced for testing tamper-resistant US-style outlets
Klein Tools ET45 is an Electronic Voltage Tester. Designed as a simple, easy to use tester to check, verify or troubleshoot common residential electrical wiring in electrical outlets, light fixtures, doorbells and more. This tester does not require batteries and features a pocket clip for convenient carrying.
NCVT-3P Non-contact Voltage Tester
- Easy-to-read – Dual Model LED Indicators
- Flashlight – Can be used independent of voltage detection

The NCVT-3P is a non-contact voltage tester with an integrated flashlight. The voltage sensor detects 12 to 1000V AC and indicates the presence of voltage in cables, cords, circuit breakers, light fixtures, switches, outlets, and wires as well as AC voltage in doorbells, thermostats, low voltage lighting and irrigation systems. Includes both visual and audible signals. The NCVT-3P is rugged enough for any job site.

Receptacle Testers
- Detects the most common wiring problems in standard and GFCI receptacles
- Confirms operation of the ground fault protective device
- Nominal Voltage: 110/125V AC at 50/60Hz in 3-wire outlet
Klein Tools Receptacle Testers are designed to detect the most common wiring problems in standard and GFCI receptacles. A convenient chart on the tester helps determine wiring condition in outlet, based on LED lights results. Conditions indicated: open ground, reverse polarity, open hot, open neutral, hot/ground reversed.
Multimeters Template | |
---|---|
Style | Hand-Held |
Measures AC V | Yes |
Measures DC V | Yes |
Measures AC A | No |
Measures DC A | Yes |
True RMS | No |
Maximum Voltage AC | 600 V |
Resolution AC Volts | 0.1 V (100 mV) |
Maximum Voltage DC | 600 V |
Resolution DC Volts | 0.1 mV |
Maximum Current DC | 10 A |
Resolution DC Current | 0.1 mA |
# Digit Display | 4 |
Backlight | No |
Manual/Autoranging | Manual |
Resistance | Yes |
Diode Testing | Yes |
CAT Rating | III |
CAT Voltage | 600 V |
Voltage / Continuity and Non-Contact Testers/Voltage and Continuity Testers Template | |
Type (Voltage Testers) | Contact |
Style (Voltage Testers) | Hand Held |
Voltage Tested | AC, DC |
AC Voltage | 240 VAC |
DC Voltage | 330 VDC |
CAT Voltage Rating | III |
CAT Voltage Rating (V) | 300V |
Voltage / Continuity and Non-Contact Testers/Non-Contact Voltage and Current Detectors Template | |
Style (voltage) | Pen |
AC Volts | Yes |
Electrical/Receptacle Testers Template | |
GFCI Protected | Yes |
Circuit Test Capability | Open Grounds, Open Hot, Open Neutral, Reversed Circuits |
Safety Voltage Rating | 300V |
Product General Attributes | |
Product Weight | 0.50 LBS |
Product Height | 1.80 IN |
Product Length | 6.39 IN |
Product Width | 3.12 IN |
Shipping Weight | 2 LBS |
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