Extech MA440 400A AC Clamp Meter with NCV, True RMS, 4000 Count
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- Reliable AC Current Measurement - Accurately measures up to 400A AC with a durable clamp design, perfect for electricians, HVAC technicians, and maintenance pros working in demanding environments.
- Built-In Non-Contact Voltage Detection - Quickly identify live wires without making direct contact. This feature enhances safety and efficiency when troubleshooting outlets, circuits, and electrical panels.
- True RMS Accuracy for Precision - Delivers reliable readings on both linear and non-linear loads, ensuring accurate measurements even in noisy environments with harmonics and variable frequency drives.
- Multi-Function Capability - Measures AC current, resistance, frequency, and continuity. Equipped with a 4000-count digital display and data hold function to capture and view readings with ease.
- Compact, Portable & User-Friendly - Lightweight clamp meter with ergonomic design and easy-to-read backlit display. Fits comfortably in your tool bag, making it an everyday essential for field service work.
Estimated shipping
Select a product to estimate shipping.The Extech MA440 400A AC Clamp Meter with NCV is a rugged, professional-grade tool engineered for electricians, HVAC specialists, and technicians who demand reliability in the field. Featuring 400A AC current measurement, True RMS accuracy, and a 4000-count display, this clamp meter ensures precise readings across multiple applications. Its built-in non-contact voltage detector provides fast and safe identification of live wires, while measurement functions for resistance, continuity, and frequency make it a versatile all-in-one instrument. The data hold feature and bright backlit display improve visibility and usability in tight or poorly lit workspaces. Compact, portable, and designed for durability, the Extech MA440 is the go-to clamp meter for professionals who value accuracy, safety, and convenience in their electrical diagnostics.
Since 1971, Extech Instruments has focused on Test and Measurement tools built for the professionals, tradesperson and DIY’ers. Our single source strategy has made us the brand to turn to when it comes to tools that help prevent, identify and troubleshoot problems in a plethora of applications; whether it’s electrical, mechanical, maintenance, safety or environmental applications. With over 45 years, Extech is renowned as one of the manufacturers and suppliers of innovative, quality handheld test, measurement and inspection tools in the world.
Product details

| Main Specification | |
|---|---|
| Specifikacijų rinkinys | FCC or CE or CAT III 600V |
| Įtraukti komponentai | Complete with test leads or three AAA batteries and pouch |
| Gamintojas | Extech |
| Vienetų skaičius | 1 Skaičius |
| Prekės ženklas | Extech |
| UPC | 793950374405 |
| Prekių skaičius | 1 |
| Energijos šaltinis | Akumuliatoriaus galia |
| Spalva | Žalia |
| Stilius | MA440 |
| Tarptautinės prekybos identifikavimo numeris | 00793950374405 |
| Svoris | 9.28 Ounces |
| Technical Details | |
| Dalies numeris | MA440 |
| Pavyzdys | MA440 |
| Measurement Type | Multimeter |
| Item details | |
| Prekės tipo pavadinimas | True RMS 400A AC Clamp Meter with NCV |
| Style | |
| Stilio pavadinimas | MA440 |
| Measurements | |
| Prekės matmenys | 3 x 1.6 x 9 inches |
| Others | |
| Punkto paryškinimas | Compact or Resistance or Continuity or Frequency or Leads or NCV or True RMS or 400A AC or 4000-count backlit or case |
| Produkto tipas | True RMS 400A AC Clamp Meter with NCV |




