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⚡ Empower your electrical diagnostics with precision and reach!
The EM285 is a modern, battery-powered DC circuit tester designed for 6-24V systems, featuring a 16ft test lead for extended reach and automatic overload protection at 8A. Ideal for professionals and DIYers, it tests continuity, polarity, switches, relays, diodes, fuses, and ground faults with reliable accuracy. Supported by a 12-month warranty and lifetime service, it’s a trusted tool for efficient electrical troubleshooting.
| ASIN | B07RWH5JB6 |
| Best Sellers Rank | 121,951 in DIY & Tools ( See Top 100 in DIY & Tools ) 150 in Circuit Testers |
| Brand | allsun |
| Colour | Blue |
| Country Of Origin | China |
| Customer Reviews | 4.6 out of 5 stars 2,200 Reviews |
| Included Components | 1 x Flexi Extension Cable; 1 x Crocodile Clip; 1 x Wire Probe; 1 x Back-Probe |
| Item Dimensions | 27.4 x 5.3 x 4.2 centimetres |
| Item Weight | 350 Grams |
| Item dimensions L x W x H | 27.4 x 5.3 x 4.2 centimetres |
| Item weight | 350 Grams |
| Manufacturer | Zhangzhou Haimao Dianzi Keji Co., LTD |
| Maximum Operating Voltage | 24 Volts |
| Measurement Type | Voltmeter |
| Minimum Operating Voltage | 6 Volts (DC) |
| Model Number | EM285 |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Product Warranty | Manufacturer warranty for 365 days from date of purchase. |
| Specification Met | CE, ISO 9001, UL |
| Style | Modern |
| Style Name | Modern |
| UPC | 687551089540 |
| Upper Temperature Rating | 40 Degrees Celsius |
R**H
Useful piece of kit
Item arrived promptly and was exactly as described. I like the variety of options this particular tester offers although as advised in the instructions you need to ensure it’s in the correct mode before testing units to ensure you don’t cause a short in certain test modes. Overall I’m very happy with the purchase, the price and performance to date.
D**Y
Make sure when connecting that polarity is correct for the instrument.
I like this test instrument long leads can test at rear of vehicle without additional add on, polarity verification is a great addition, at the touch of a switch. Recommend this for working on any vehicle, saves time and user friendly.
E**S
Okay
Okay
T**Y
Very handy item
Have used this item many times, and I find it good easy to use. make testing wiring very easy
I**Y
Helped me fault find
Polo wasn't starting and the ignition fuse was blowing everytime I turned the key. By tinkering and checking the circuit, this help me find the fault and tape up the wires to stop the short. Great bit of kit and probably saved £100's.
A**D
Used to power car seat motor directly when stuck
Used to power the seats on my W211 when the seat module died and was stuck far back. Bought some pin probes with it too and used the cars battery to power the power probe. Stuck the pins into the large gauge wires, reversed polarity to change direction.
L**N
So useful
Very easy to use (if you read the instructions) bought to trace all the poor electrics and bad earths on my kit car
D**.
Great tool
Great tool for an amateur mechanic
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