# MA140-NIST Extech Clamp Meter New

**Features**

-   NIST Traceable
-   True RMS for accurate readings of noisy, distorted or non-sinusoidal waveforms
-   Compact 0.8" (22mm) jaw size accommodates conductors up to 300MCM and allows measurements in tight locations
-   Unique Smart Auto Sense feature
-   Low Pass Filter (LPF) for accurate measurement of variable frequency drive signals
-   Built-in Non-Contact Voltage (NCV) detector for quick detection of live voltage
-   Inrush current measurement
-   6000 count backlit LCD display
-   Smart Data Hold: Audiovisual alert when a new reading exceeds 50 digits of a held reading
-   Low battery indicator and Auto Power Off feature
-   Complete with carrying case and two LR44 batteries

**Specifications**

-   AC Current (max resolution): 60A, 300A (0.01A)
-   Basic accuracy: ±2.0%
-   Non-Contact Voltage (NCV): 80 to 600V
-   Dimensions/ Weight: 5.8x2.4x1.2" (147x60x31mm)/ 4.9oz (140g)

The MA140 is a Compact AC Clamp Meter with NCV Detector. This Clamp meter takes True RMS measurements for accurate readings of noisy, distorted or non-sinusoidal waveforms. The MA140 can measure up to 300A AC. Complete with carrying case and two LR44 batteries.

## Details

- **Price:** 276.99 USD
- **Vendor:** Extech
- **Type:** Clamp Met
- **Tags:** Clamp, Extech, Manufacturers, Meters & DAQ, product_manual_group_2, Product_new

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 276.99 USD | In stock |

## Images

- MA140-NIST Extech Clamp Meter

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> Source: [ValueTronics](https://valuetronics.com/products/ma140-nist-extech-clamp-meter-new)
> Updated: 2026-05-21