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DL479 - True-RMS HVAC/R Clamp Amp Meter AC 600A

  • $99.95 USD
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The DL479, a 400A AC clamp meter is equipped with essential functionality. Designed to the latest 3rd edition safety standards and ETL listed for US and Canada, DL479 is rated for CATIV 600V and CATIII 1000V protection.

• Motor or line current
• Control voltage or system board voltage checks
• Circuit continuity or specified resistance
• Flame safe guard
• Quick check of live wires
• Diode malfunctions/unbroken paths

** Download Data Sheet
** Download Product Manual

Specifications (More specs listed on images above)
• True RMS • Frequency/Duty cycle
• 400A AC / 600A AC • Min/Max (25ms fast capture)
• 750V AC/600V DC • Magnetic mount
• Resistance 40MΩ 60MΩ  • Backlight
• DC microamps 2000µA • Worklight
• Temperature -31˚ to 752˚F • Audible voltage indicator
(-35˚ to 400˚C) • Auto power off
• Diode test • Low battery indicator
• Non-contact voltage detection • Over molded grip
• Audible Continuity • Test lead storage
• 6000 Count display • Auto calibration
• Data Hold • Battery compartment latches
• Manual ranging option • Standard Warranty



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209 reviews

Shipment arrived on time and as ordered.

La Crosse Technologies V10-TH

The La Crosse V10-TH Wireless Weather Station (Model No. C84343) is absolutely wonderful. The setup was easy with the Quick Setup Guide provided with the unit. The packaging contains additional support information with the website and phone number if there are questions. I especially liked the daily high low readings and the color on the unit! Tech Instrumentation provided great communication as to the availability of the product and shipping details. If fact, it arrived one day prior to the estimated delivery date. I would absolutely recommend this product and Tech Instrumentation for anyone looking for an indoor/outdoor weather station!


I needed a replacement as my original sensor no longer worked. This one works fine.

Excellent Customer Service!

I can't way enough about the customer service at Tech Instrumentation. I was looking for a hard to find specialty part, which the manufacturer told me would need to be custom made. After calling and speaking with a representative at Tech Instrumentation, the part was located and order was filled, right over the phone. Delivery was prompt, and instrument is working great. Highly recommended company for lab supplies!

Worked great

Put batteries in and worked great