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allsun EM287 handheld tester with LCD screen and 16.4 ft cable

allsun EM287 Electrical System Tool 2-24V 5m Cable

SKU CH-1DD8-N9TEE MPN EM287

A 2-24 V digital circuit tester with LCD voltage readout, polarity LEDs, continuity mode, 8 A overload protection and a 16.4 ft cable

  • Key featuresEm287, Battery Powered,electric, false
  • Overall height10.79 L x 2.09 W x 1.65 H inches
  • Overall width10.79 L x 2.09 W x 1.65 H inches
  • Overall length10.79 L x 2.09 W x 1.65 H inches
  • Product typeVoltmeter
  • Tests circuits from 2 to 24 volts with digital LCD readout
  • Identifies positive or negative polarity via red and green LEDs
  • Powers components directly for activation and continuity checks
  • Protected by 8 amp overload circuit breaker and automatic reset
  • Includes 16.4 foot heavy-duty cable with alligator clips and probe tip

Fast 2-24V Circuit Testing

The allsun EM287 is a battery powered electrical tester that combines a digital LCD voltage readout with LED polarity indication and an audible buzzer. It connects through a 5 metre heavy-duty cable and includes alligator clips, a probing tip and an auxiliary ground lead for immediate use. Overload protection at 8 amps and an automatic circuit breaker protect both the tool and the vehicle ECU during diagnostics.

DIY Mechanics and Hobbyists

This tool suits DIY mechanics and hobbyists who want quick voltage, polarity and continuity checks on vehicle circuits without a full multimeter. It also helps technicians who need to activate components such as fuel pumps, lights and solenoids directly from the probe. Buyers who require laboratory grade accuracy, data logging or measurements beyond the 24 volt range should look at a different instrument.

2-24V Operating Range

The single specification that decides fit is the 2 to 24 volt operating window. If the system under test stays within this range the EM287 will display voltage, indicate polarity and sound the buzzer on faults. Circuits outside this window cannot be measured safely with this tester.

How it compares

Measured against everything we stock in Multimeters & Electrical Testers, at today’s prices. Recalculated every night.

Price $31.99
Typical for this category: the median of 971 items is $30.99.

Specifications

Product
Brand nameAllsun, Zhang Zhou Shi Xiang Cheng Qu Hai Mao Dian Zi Ke Ji co., LTD
Product typeVoltmeter
Size & build
Overall height10.79 L x 2.09 W x 1.65 H inches
Overall width10.79 L x 2.09 W x 1.65 H inches
Overall length10.79 L x 2.09 W x 1.65 H inches

Questions about this item

What vehicle voltage system is required for the EM287 tester to operate?

The EM287 works with 2-24V DC systems, covering most cars, motorcycles, and light commercial vehicles.

Can the EM287 safely test circuits on an older vehicle without risking damage to its ECU?

Yes, the built-in 8A overload protection and automatic circuit breaker protect both the tester and the vehicle ECU during accidental shorts.

How do I confirm the EM287 is functioning correctly before starting a diagnosis?

Press the rocker switch forward; the indicator should glow red. Press it rearward; it should glow green, confirming the unit and clips are ready.

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