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EXTECH MA640NIST Digital Multimeter

The Extech MA640-NIST digital multimeter is a versatile measurement tool offering precise readings of AC/DC current, voltage, resistance, capacitance, frequency, and duty cycle. It features a built-in Type K thermocouple for surface temperature measurements and a non-contact voltage detector with LED alerts for safety. The 1.5-inch (40mm) jaw suits conductors up to 750 MCM. The device’s 4-digit (6,000 count) LCD displays data clearly, with additional functions like Max/Min, data hold, capacitance zeroing, auto power-off, and a low battery indicator. It complies with CAT III 600V safety standards, making it ideal for industrial and troubleshooting applications.

Authorized Distributors
Part No:MA640-NIST
Stock:0
Inv Date:06-06-2026
Price: N/A
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Part No:MA640-NIST
Stock:0
Inv Date:06-05-2026
Price: Unit price: $254.99
Buy/RFQ:
Part No:MA640-NIST
Stock:0
Inv Date:06-05-2026
Price: Unit price: $254.99
Buy/RFQ:
Part No:MA640-NIST
Stock:0
Inv Date:06-05-2026
Price: Unit price: $249.99
Buy/RFQ:
Part No:MA640-NIST
Stock:0
Inv Date:06-05-2026
Price: Unit price: $275
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EXTECH MA640NIST Digital Multimeter Specifications:

  • Display Counts: 6000
  • AC Current Range: 60.00A, 600.0A
  • DC Current Range: 60.00A, 600.0A
  • AC Voltage Range: 6.000V, 60.00V, 600.0V
  • DC Voltage Range: 0.1mV
  • Resistance: 600.02Ω to 6.000MΩ
  • Capacitance: 40.00pF to 4000pF
  • Frequency: 10Hz to 10kHz
  • Temperature: -20°C to 760°C (-4°F to 1400°F)
  • Duty Cycle: 0.5% to 99.0%
  • Jaw Size: 1.5 inches (40mm) for conductors up to 750 MCM
  • Safety Rating: CAT III 600V
  • Power Source: 9V Battery
  • Additional Features: Max/Min, Data Hold, Relative Mode, Auto Power-Off, Low Battery Indicator

Buy the Extech MA640-NIST – Reliable Digital Multimeter for Industrial Applications

Purchase the Extech MA640-NIST digital multimeter online today to ensure accurate AC/DC current, voltage, resistance, and temperature measurements. This professional-grade device features a 4-digit LCD display, built-in thermocouple, non-contact voltage detection, and safety rated for CAT III 600V standards. Its robust design includes functions like Max/Min, data hold, relative mode, and auto power-off, making it ideal for industrial troubleshooting, maintenance, and electrical work. Order now to experience precise readings and reliable performance in demanding environments.

Get Extech MA640-NIST today—built for precision and long-lasting durability with comprehensive measurement capabilities.

Frequently Asked Questions

Where can I buy EXTECH MA640NIST?

You can click on the BUY or RFQ button to purchase MA640NIST from an authorized EXTECH distributor.

How do I troubleshoot issues or seek technical support for part MA640NIST?

You can download the MA640NIST datasheet or visit the EXTECH website for support.

Who is the manufacturer of MA640NIST?

EXTECH

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