Klein Tools MM320KIT Digital Multimeter Electrical Test Kit, Non-Contact Voltage Tester, Receptacle Tester, Carrying Case and Batteries
*Price sourced from Amazon.com. Last updated 2026-07-07. Price and availability subject to change.
Bottom line: The Klein Tools MM320KIT Digital Multimeter Electrical Test Kit, Non-Contact Voltage Tester, Receptacle Tester, Carrying Case and Batteries is a niche pick — read recent reviews before buying in the tools & maintenance category, priced around $54.99. Read recent reviews carefully before committing.
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. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers…
SpecPicks Verdict
SpecPicks classifies Klein Tools MM320KIT Digital Multimeter Electrical Test Kit… as a niche pick — read recent reviews before buying in the tools & maintenance category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for tools & maintenance of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- VERSATILE MEASUREMENTS: Digital Multimeter accurately measures up to 600V AC/DC voltage, 10A DC current, and 2 ohm resistance, offering precise readings for various electrical tasks
- EXTENSIVE FUNCTIONALITY: In addition to voltage, current, and resistance, the meter tests batteries, diodes, and continuity, providing comprehensive testing capabilities in one device
- DUAL-RANGE VOLTAGE DETECTION: Voltage Tester NCVT3P detects from 12 to 1000V AC or 70 to 1000V AC, accommodating a wide range of low-voltage and standard voltage applications
- BUILT-IN FLASHLIGHT: The NCVT3P features a bright flashlight that illuminates the work area, offering convenient visibility and independent use from the voltage detection function
- ACCURATE AND WIDE-RANGE TESTING: ET45 tests AC voltages from 28V to 240V AC and DC voltages from 32V to 330V, covering commonly used residential voltages for reliable testing
- CONVENIENT TEST LEAD HOLDER: The ET45 comes with a built-in test lead holder on the back, providing two positions for correctly spacing the leads for testing tamper-resistant outlets or convenient storage
Full Specifications
| Brand | KLEIN TOOLS |
|---|---|
| Color | Multi |
| Model | MM320KIT |
| Style | Multimeter and Receptacle Tester Kit |
| Style Name | Multimeter and Receptacle Tester Kit |
| Unit Count | 1.0 Count |
| Part Number | MM320KIT |
| Power Source | Battery Powered |
| Item Type Name | Multimeters |
| Item Dimensions | 12.4 x 7.91 x 2.24 inches |
| Measurement Type | Multimeter |
| Specification Met | CE, ETL, NIST, RoHS, UL |
| Included Components | MM320 Manual Ranging Digital Multimeter, ET45 AC/DC Voltage Tester |
| Warranty Description | Please refer to attached warranty document for information |
Ready to buy?
Klein Tools MM320KIT Digital Multimeter Electrical Test Kit, Non-Contact Voltage Tester, Receptacle Tester, Carrying Case and Batteries is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-07-07. Price and availability subject to change.
Related Tools & Maintenance
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- How to Build a Windows 98 Retro PC in 2026
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- Best Retro Handhelds in 2026 — From $35 to $500
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Best 1440p Gaming GPUs in 2026
More reviews from the SpecPicks archive
Browse all reviews →- DFlash Speculative Decoding on Qwen3.5-35B-A3B: How an RTX 2080 Super 8GB Hits 60+ tok/s
- Best Budget Streaming Setup in 2026: 5 Picks Under Budget
- Logitech G502 Hero vs MK270 Combo: Best PC Setup for Sub-$50
- Ryzen 7 5800X3D vs 5800X: Does 3D V-Cache Beat Raw Clocks for Gaming?
- Running Local LLMs on a Raspberry Pi 5 in 2026: What Works, What Doesn't
- Best CPU to Pair With an RTX 3060 12GB in 2026: Ryzen 7 5800X vs 5700X, No Bottleneck
- Best 1440p Monitor for the RTX 3060 in 2026: Picks That Actually Match
- Using Claude to Auto-Generate Period-Correct DOSBox-X Configs for 90s PC Games
- Best GPU for Local Stable Diffusion Under $400: Why the RTX 3060 12GB Still Wins
- Best Game Controller for PC in 2026
- SANSUI vs KOORUI 27" 4K: Which Budget 4K Gaming Monitor Wins?
- 32B Models on 12GB VRAM: What an RTX 3060 Can Really Run in 2026
- AMD Ryzen AI Max+ 395 'Strix Halo' 128GB for Local LLMs: Mini-PC vs an RTX 3060 Rig
- Ryzen 5 5600G vs Ryzen 7 5700X for Budget Gaming in 2026: Which AM4 CPU Wins?
- Apple Intelligence Gets a Second Shot With Google and Nvidia Help
- Sound Blaster Audigy 2 ZS in a 2026 WinXP Build: The Last True EAX Card
- Linux Driver Adds Voltage Monitoring for Raspberry Pi SBCs
- RTX 3060 12GB: Ollama vs llama.cpp vs vLLM Token Speed (2026)
- SATA SSD vs NVMe for Gaming: Does It Actually Load Faster?
- Cursor Launches Its Own AI Model and Git Platform: What Changes
- Qwen 3.6 35B-A3B KV Cache Deep Dive: Memory, PPL, and Quantization Tradeoffs
- LG UltraGear 52G930B 52-inch 5K gaming monitor review: Extreme in every respect
- Sega Genesis Games Loaded Off a Vinyl Record: How the Hack Works
- Best Sim Racing Wheel for Beginners in 2026