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TOOLTOP ET89 EU US UK Socket Tester Digital Display Electric Socket Detector Voltage Frequency Wiring RCD Test

Marsoni M251S
Sale price$13.55
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TOOLTOP ET89 EU US UK Socket Tester Digital Display Electric Socket Detector Voltage Frequency Wiring RCD TestSpecifications Material: ABS Color: black Measuring voltage: 90 120V 60Hz, 220 250V 50 60Hz (optional) Voltage measurement accuracy: (2%+5) Working current: 3mA RCD: yes The detection function displays both voltage and frequency: correct, missing ground, missing neutral, live neutral reverse, live ground reverse, live ground reverse&missing ground Working temperature: 0~40 Working humidity: 20%~80%RH Storage temperature: 10~50 The altitude: 2000m RCD
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4.7 ★★★★★
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A customer
Pawtucket, US
★★★★★ 4
reading this helped me pass the A+ core windows 1 exam and security plus
Format: Paperback
Problem is that I am 63 years old having earned the certificate and the industry doesn't seem to welcome older workers . I used to help maintain a fleet of printers at two large companies. I have read about other more experienced tech workers in their 50s getting jobs now working in pharma working at sterilization technicians because IT seems to be puking jobs.
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Reviewed in the United States on March 18, 2026
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koleya
West Palm Beach, US
★★★★★ 5
Good for Exam
Format: Paperback
Very helpful, covers test materials and is a good resource.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026
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Nate
Pawtucket, US
★★★★★ 2
Incomplete
Format: Paperback
Only received three of the four volumes. Did not receive the core 1 study guide.
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Reviewed in the United States on October 8, 2025
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Pete Gallagher
Cuba, US
★★★★★ 5
Very detailed
Format: Paperback
Great info. Definitely a great purchase
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Reviewed in the United States on February 8, 2026
N
Nathan
Louisville, US
★★★★★ 5
These are the actual reference books.
Format: Paperback
The actual books for the actual tests. You Need these if you want to study and pass the Comptia A+ exams. Legit the real deal.
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Reviewed in the United States on March 2, 2026

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