


About Klein Tools
As an American manufacturer of hand tools for more than 160 years, Klein Tools makes premium-quality, professional-grade tools that deliver performance, durability and precision. Our team continues to put six generations of expertise into each tool by using the highest quality materials and superior workmanship.
Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day … Since 1857.
Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Tester, Tests Batteries, Current, Resistance, Diodes, and Continuity
Klein Tools MM325 Multimeter is a manual-ranging multimeter that measures AC/DC voltage, DC current, and resistance. It can also test batteries, diodes, and continuity. Klein Tools' Test and Measurement product line was exclusively designed from the ground up by electricians for electricians
- Multimeter measures up to 600V AC/DC voltage, 10A DC current, 2 MOhms resistance, continuity, batteries, and diodes
- Lead Alert protection with LED's for test lead placement
- Easy-to-view backlit display for low light environments
- Low battery indicator and easily accessible battery and fuse compartment
- Durable meter built to withstand a 6.6-Foot (2 m) drop
- Includes test leads, batteries and user manual
- CAT III 600V safety rating
- For use in basic and controlled electromagnetic environments such as residential, business and light-industrial locations
FEATURES

Manual-Ranging Multimeter tests batteries, diodes and continuity

Meter measures up to 600V AC/DC voltage and 10A DC current

Lead Alert protection with LED's for test lead placement
![]() Klein Tools MM320KIT Digital Multimeter Electrical Test Kit, Non-Contact Volt... | ![]() Klein Tools ET270 Auto-Ranging Digital Multi-Tester, AC/DC, Resistance, Conti... | ![]() Klein Tools CL120VP Electrical Voltage Test Kit with Clamp Meter, Three Teste... | ![]() Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, ... | ![]() Klein Tools RT250KIT Non-Contact Voltage Tester and GFCI Receptacle Tester wi... | ![]() Klein Tools 69410 Replacement Test Lead Set, Right Angle | |
|---|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — | — |
| Price | — | — | — | — | — | — |
| Mfg. No. | MM320KIT | ET270 | CL120VP | RT390 | RT250KIT | 69410 |
| Description | Klein Tools MM320KIT Digital Multimeter Electrical Test Kit, Non-Contact Volt... | Klein Tools ET270 Auto-Ranging Digital Multi-Tester, AC/DC, Resistance, Conti... | Klein Tools CL120VP Electrical Voltage Test Kit with Clamp Meter, Three Teste... | Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, ... | Klein Tools RT250KIT Non-Contact Voltage Tester and GFCI Receptacle Tester wi... | Klein Tools 69410 Replacement Test Lead Set, Right Angle |

Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Tester, Tests Batteries, Current, Resistance, Diodes, and Continuity

About Klein Tools
As an American manufacturer of hand tools for more than 160 years, Klein Tools makes premium-quality, professional-grade tools that deliver performance, durability and precision. Our team continues to put six generations of expertise into each tool by using the highest quality materials and superior workmanship.
Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day … Since 1857.

Klein Tools MM325 Multimeter is a manual-ranging multimeter that measures AC/DC voltage, DC current, and resistance. It can also test batteries, diodes, and continuity. Klein Tools' Test and Measurement product line was exclusively designed from the ground up by electricians for electricians
- Multimeter measures up to 600V AC/DC voltage, 10A DC current, 2 MOhms resistance, continuity, batteries, and diodes
- Lead Alert protection with LED's for test lead placement
- Easy-to-view backlit display for low light environments
- Low battery indicator and easily accessible battery and fuse compartment
- Durable meter built to withstand a 6.6-Foot (2 m) drop
- Includes test leads, batteries and user manual
- CAT III 600V safety rating
- For use in basic and controlled electromagnetic environments such as residential, business and light-industrial locations
FEATURES

Manual-Ranging Multimeter tests batteries, diodes and continuity

Meter measures up to 600V AC/DC voltage and 10A DC current

Lead Alert protection with LED's for test lead placement
![]() Klein Tools MM320KIT Digital Multimeter Electrical Test Kit, Non-Contact Volt... | ![]() Klein Tools ET270 Auto-Ranging Digital Multi-Tester, AC/DC, Resistance, Conti... | ![]() Klein Tools CL120VP Electrical Voltage Test Kit with Clamp Meter, Three Teste... | ![]() Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, ... | ![]() Klein Tools RT250KIT Non-Contact Voltage Tester and GFCI Receptacle Tester wi... | ![]() Klein Tools 69410 Replacement Test Lead Set, Right Angle | |
|---|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — | — |
| Price | — | — | — | — | — | — |
| Mfg. No. | MM320KIT | ET270 | CL120VP | RT390 | RT250KIT | 69410 |
| Description | Klein Tools MM320KIT Digital Multimeter Electrical Test Kit, Non-Contact Volt... | Klein Tools ET270 Auto-Ranging Digital Multi-Tester, AC/DC, Resistance, Conti... | Klein Tools CL120VP Electrical Voltage Test Kit with Clamp Meter, Three Teste... | Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, ... | Klein Tools RT250KIT Non-Contact Voltage Tester and GFCI Receptacle Tester wi... | Klein Tools 69410 Replacement Test Lead Set, Right Angle |





















