Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
KLEIN TOOLS MM420 Digital Multimeter, 4000 Counts, CAT III 600V, TRMS - Standard Feature Multimeters
KLEIN TOOLSStandard Feature Multimeters

KLEIN TOOLS MM420 Digital Multimeter, 4000 Counts, CAT III 600V, TRMS

<p>The Klein Tools MM420 Digital Multimeter is a reliable standard-feature multimeter designed for electrical professionals and technicians. With a 4000-count display and True RMS (TRMS) measurement capability, it…

SKU 3G-OTH-173880

Also listed as: MM 420 · MM-420

Brand
KLEIN TOOLS
Item
MM420 Digital Multimeter, 4000 Counts, CAT III 600V, TRMS
Part Number
MM420
Category
Standard Feature Multimeters
Available to Order
Also known as:MM420KLEIN TOOLS
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

KLEIN TOOLS
Manufacturer Part Number
MM420
Type
CAT III 600V
Instrument Counts
4,000
Max AC Volt Measurement
600 V
Calibration Certificate Included
Not Included

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

KLEIN TOOLS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

<p>The Klein Tools MM420 Digital Multimeter is a reliable standard-feature multimeter designed for electrical professionals and technicians. With a 4000-count display and True RMS (TRMS) measurement capability, it provides accurate readings on non-linear loads. Safety-rated CAT III 600V, it is suitable for commercial and industrial electrical troubleshooting.</p><p>Key specifications include maximum AC voltage measurement of 600V, making it versatile for various applications. As a Singapore-based supplier, 3G Electric offers SGD quotes on request, handles GST for local buyers, and ensures fast delivery across Singapore and Southeast Asia.</p>

Frequently Asked Questions

What is the maximum AC voltage this multimeter can measure?

The Klein Tools MM420 can measure AC voltage up to 600V, as specified in its CAT III 600V rating.

Does the MM420 come with a calibration certificate?

No, the calibration certificate is not included with this product.

Used in

Common applications for KLEIN TOOLS
Electrical installation — Klein Tools lineman's pliers (D2000-7, J2000-9NE) for cutting and gripping wire in panel and conduit work.
Data cabling — Klein Tools ratcheting cable cutter (63601) for cleanly cutting data cable up to 2 1/16 in diameter without burrs.
Fence and sign installation — Klein Tools manual post driver (5SDSH) for driving posts and stakes into the ground.
General construction — Klein Tools straight-claw hammer (H80820) for driving and pulling nails in framing and electrical tasks.
Portable lighting — Klein Tools rechargeable flashlight (56074) for illumination in dark work areas, with 1,000 lumens output.
Cable preparation — Klein Tools ratcheting cable cutter (63060) for cutting aluminum electric cable up to 750 kcmil in heavy-duty applications.
Not sure this is the right part? Photo-identify it→

KLEIN TOOLS Products

3G Electric supplies KLEIN TOOLS standard feature multimeters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Related products

More from KLEIN TOOLS

View all KLEIN TOOLS parts →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first