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Red handheld wireless three-phase phase voltmeter model 4480

ETCR

ETCR 4480 Wireless Three-Phase Phase Voltmeter 1000m

SKU CH-1HZ2-RMA90 MPN 4480

Measures three-phase voltage to 700 V and current to 20 A with 0.3 class accuracy and wireless transmission up to 1000 m

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Measures three-phase voltage up to 700 V for comprehensive system analysis
  • Wireless transmission reaches 1000 m enabling remote synchronous readings
  • Phase accuracy of ±0.3° ensures precise vector diagram display
  • Current range from 0.001 A to 20 A covers wide load conditions
  • Four handheld terminals operate simultaneously as host or slave units

Wireless three-phase voltmeter

The ETCR 4480 is a wireless three-phase phase voltmeter designed for electricians and substation technicians who need to measure voltage, current, phase angle, frequency and power parameters simultaneously across multiple points. It transmits data up to 1000m between handheld terminals, allowing synchronous readings without physical cable connections between phases.

On-site substation testing crews

This instrument suits teams performing live secondary-circuit diagnostics in smart substations where voltage and current points are physically separated. It supports single-phase, two-phase and three-phase modes with up to four units operating as host or slave. Contractors who only require basic single-point voltage checks or insulation resistance testing should look at simpler tools.

Class 0.3 voltage and current accuracy

Voltage and current measurements meet class 0.3 accuracy while phase accuracy is ±0.3° across a 0°~360° range. The meter covers 2V~700V, 0.001A~20A, 45Hz~65Hz and calculates active and reactive power up to 14000W or VAR. This precision level determines whether the 4480 meets your substation verification standards.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $709.99
Pricier than about 91% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameETCR
Model name4480
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

What voltage range must the circuit I am testing fall within for the 4480 to measure it?

The meter measures AC voltage from 2 V up to 700 V, so the circuit under test must stay inside that window.

Can I use the 4480 alongside an older clamp meter that only reads up to 10 A?

Yes, the 4480 measures current up to 20 A, so it covers the range of the older clamp and adds wireless three-phase vector display.

How do I confirm the 4480 is giving correct phase readings after I connect it?

Check that the displayed phase angle falls between 0° and 360° and that the stated phase accuracy of ±0.3° matches your reference standard.

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