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Extech MA145 True RMS AC/DC Clamp Meter - 300A

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MA145
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£86.83 £72.36
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This small size clamp meter is perfect for testing in engines and other tight applications. Its narrow jaw opening of 0.8" (22mm) makes it easy to connect to engine wires and other conductors.

The MA145 is the upgraded version of the MA140. The main difference between the two products is this model includes the ability to measure both AC and DC current, while the MA140 only measures AC. The MA145 also includes a unique Auto Sense mode which will automatically detect the input and activate the correct mode (either AC or DC).

Before testing, users can also use the MA145's built-in non-contact voltage detector to detect the presence of voltage from 80 to 600V. Other additional features include a low pass filter (LPF) for measurements of variable frequency drive signals, inrush current measurements and smart data hold with audio and visual alerts when a value is 50 digits outside of the held value.

Extech MA145 True RMS AC/DC Clamp Meter Key Features

  • Measure AC/DC current to 300A
  • AutoSense mode automatically determines AC/DC operation
  • Zero function fo accurate DC measurements
  • True RMS technology - ensures accurate readings on irregular waveforms
  • 0.8" (22mm) jaw size suitable for conductors up to 300MCM
  • Slim design makes this meter perfect for testing in difficult applications
  • Low pass filter (LPF) for accurate measurements of variable frequency drive signals
  • Built-in non-contact voltage detector
  • Inrush current measurements
  • 6000 count backlit LCD display
  • Smart data hold - holds a value on the screen and uses audio/visual alerts to tell the user if the next value exceeds 50 digits outside that value
  • Low battery indicator
  • Auto power off
  • CAT III 600V safety rating

What's Included?

  • Extech MA145 True RMS AC/DC Clamp Meter
  • Carrying Case
  • 2 x LR44 Batteries
Part CodeMA145

Extech MA145 Technical Specifications

AC/DC Current (Max Resolution) 60, 300A (0.01A)
Basic Accuracy AC: ±1.5%
DC: ±1.5%
Non-Contact Voltage Detector Range 80 to 600V
Dimensions 5.8 x 2.4 x 1.2" (147 x 60 x 31mm)
Weight 4.9oz (140g)
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