Extech (Teledyne FLIR) · Updated August 2026
Extech MA640 True RMS AC/DC Clamp Meter with NCV: full specs
Extech MA640 True RMS AC/DC Clamp Meter with NCV. Every price and spec below is linked to its source and dated — no guesses.
Source: flir.com verified ✓ corroborated verify in ledger
Is the Extech MA640 True RMS AC/DC Clamp Meter with NCV a good buy?
On the spec sheet, its display count of 6000 is the highest of the 8.
Specifications
| Price (US) | Not published Discontinued; Extech/FLIR's own product page lists the MA640 as replaced by the Extech EX655 and shows no current sell price, so priceUsd is left null rather than guessed from stale retailer caches. |
|---|---|
| Brand | Extech (Teledyne FLIR) |
| Released | — |
| Ac current range | 60.00 A / 600.0 A |
| Dc current range | 60.00 A / 600.0 A |
| Jaw opening | 1.5 in (40 mm), conductors up to 500 MCM |
| Ac dc voltage range | AC 6.000V/60.00V/600.0V; DC 600.0mV/6.000V/60.00V/600.0V |
| True rms | Yes |
| Resistance continuity | 600.0Ω to 60.00MΩ, with continuity |
| Capacitance | 40.00nF to 4000µF |
| Temperature | -4°F to 1400°F (-20°C to 760°C), Type K |
| Cat safety rating | CAT III 600V |
| Display count | 6000 |
Source: flir.com (verified 2026-08-05) · corroborated by testequipmentdepot.com. flir.com (Extech's parent brand) confirms the MA640 is discontinued with the EX655 listed as its replacement, and gives the full electrical spec table (current, voltage, resistance, capacitance, temperature ranges), 6000-count segment LCD with bargraph, built-in NCV detector, 9V battery power, and 1.5 in (40 mm) jaw. Because the product is discontinued and no current retailer price could be confirmed, priceUsd is null rather than an estimate.
Frequently asked questions
How much does the Extech MA640 True RMS AC/DC Clamp Meter with NCV cost?
The Extech MA640 True RMS AC/DC Clamp Meter with NCV has no published US price as of 2026-08-05.
What are the Extech MA640 True RMS AC/DC Clamp Meter with NCV's key specs?
Extech MA640 True RMS AC/DC Clamp Meter with NCV (Extech (Teledyne FLIR)): acCurrentRange 60.00 A / 600.0 A, dcCurrentRange 60.00 A / 600.0 A, jawOpening 1.5 in (40 mm), conductors up to 500 MCM, acDcVoltageRange AC 6.000V/60.00V/600.0V; DC 600.0mV/6.000V/60.00V/600.0V, trueRms Yes. Full sourced spec sheet verified 2026-08-05.
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