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Extech Instruments MA445 Clamp Meter

The Extech MA445 Series clamp meter offers versatile measurement capabilities with true RMS technology, AC/DC current, and temperature measurements using a Type K probe. This pocket-sized device features a large backlit LCD, built-in non-contact voltage detection, and max/min functions, making it ideal for electrical testing, automotive diagnostics, and fieldwork. The MA445 provides accurate readings up to 400A for AC/DC currents and encompasses resistance, capacitance, frequency, and diode testing. Its durable design includes a bright flashlight, auto power-off, and comes with test leads, a temperature probe, and batteries.

Authorized Distributors
Source:Newark
Part No:MA445
Stock:4
Inv Date:06-21-2026
Price: Unit price: $144.88
Buy/RFQ:
Source:DigiKey
Part No:MA445
Stock:4
Inv Date:06-21-2026
Price: Unit price: $129
Buy/RFQ:
Part No:MA445
Stock:12
Inv Date:06-22-2026
Price: Unit price: $120.29
Buy/RFQ:
Part No:MA445
Stock:0
Inv Date:06-21-2026
Price: Unit price: $129
Buy/RFQ:
Part No:MA445
Stock:1
Inv Date:06-21-2026
Price: Unit price: $109.63
Buy/RFQ:
Part No:MA445
Stock:3
Inv Date:06-21-2026
Price: Unit price: $109.6
Buy/RFQ:
Part No:MA445
Stock:4
Inv Date:06-21-2026
Price: Unit price: $144
Buy/RFQ:
Part No:MA445
Stock:0
Inv Date:06-21-2026
Price: Unit price: $129
Buy/RFQ:
Part No:MA445
Stock:3
Inv Date:06-21-2026
Price: Unit price: $109.6
Buy/RFQ:
Authorized Distributors
Part No:MA445
Stock:2
Inv Date:06-21-2026
Price: N/A
Buy/RFQ:

Extech Instruments MA445 Clamp Meter Specifications:

  • AC Current: 400.04 (1mA) True RMS
  • DC Current: 400.04 (10mA)
  • AC Voltage: 600V (1mV) True RMS
  • DC Voltage: 600V (0.1mV)
  • Resistance: 40MΩ (0.19)
  • Capacitance: 40mF (0.01nF)
  • Frequency: 1MHz (0.01Hz)
  • Temperature (Type K): -40° to 1832°F/-40° to 1000°C
  • Dimensions: 9x3x1.6 inches
  • Weight: 9.3 oz

Buy the Extech Series MA440 Clamp Meter: MA445

Enhance your electrical testing tasks with the Extech MA445 Series clamp meter. This compact, rugged device provides true RMS measurements for AC/DC currents up to 400A, as well as temperature readings with a Type K probe. Its built-in non-contact voltage detection, backlit LCD display, and max/min functions make it perfect for troubleshooting and electrical diagnostics. Complete with test leads, a temperature probe, and batteries, the MA445 is a reliable choice for professionals seeking accuracy and durability on the job.

Get Extech MA445 today—built for precision, durability, and versatile electrical testing in the field.

Frequently Asked Questions

Where can I buy Extech Instruments MA445?

You can click on the BUY or RFQ button to purchase MA445 from an authorized Extech Instruments distributor.

How do I troubleshoot issues or seek technical support for part MA445?

You can download the MA445 datasheet or visit the Extech Instruments website for support.

Who is the manufacturer of MA445?

Extech Instruments

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