SPECIFICATIONS

Battery Included: no

Brand Name: NJTY

Certification: CE,RoHS

Choice: yes

High-concerned chemical: none

Input Voltage: ＞50VAC/75VDC

Input voltage range: 90 to 250V, 45 to 65 Hz

Is Smart Device: no

Model Number: T003-US

Origin: Mainland China

Plug Type: US Standard

Semi-finishedproduct: No

NJTY T003 Intelligent LCD Socket Tester – US Plug | Detect 6 Wiring Faults, Measure Voltage & Frequency, Test RCD Trip (90–250V)

Product Parameters

• Input voltage range: 90–250 VAC, 45–65 Hz

• Standby current: < 3 mA (RCD test off)

• RCD trip threshold: > 30 mA

• Voltage accuracy: ±(2% of reading + 5 digits)

• Ambient operating conditions: 0 °C to 40 °C, 20–75% RH

• Storage: 20–80% RH

• Max altitude: 2000 m

• Backlit LCD for clear visibility

• Compact, travel‑friendly body

Product Features

One‑click wiring diagnosis – Insert into any standard US 3‑prong outlet; the three LEDs scan rapidly and the LCD instantly shows one of six wiring conditions: correct, missing ground, missing neutral, live‑neutral reversed, live‑ground reversed, or both reversed and missing ground. No guesswork.

Live voltage & frequency monitor – The screen continuously updates the actual line voltage (90‑250V) and mains frequency (45‑65Hz) while testing, giving you real‑time power quality feedback.

RCD / GFCI safety verification – Press the leakage test button for less than 3 seconds on a properly wired circuit. A working GFCI will trip immediately. If it doesn’t, the protection device is defective – a clear signal to call a licensed electrician.

Built for accuracy and dependability – With a voltage error margin of only ±2%+5 digits and stable operation across temperature and humidity variations, this tester meets professional standards for daily use.

Effortless operation – No complicated settings; just plug and read. The bright backlit display ensures easy reading even under strong sunlight, and the lightweight design fits easily into any tool bag or suitcase.

Versatile real‑world uses

Electricians: complete a full home circuit audit in under 30 seconds.

Travelers: verify outlet safety in US‑standard hotels and motels.

Homeowners: check new installations or troubleshoot suspicious outlets.

Safety first – Always inspect the unit for damage before each use, and test it on a known good outlet first. For RCD tests, disconnect all appliances on that circuit. Any wiring errors found must be corrected only by a qualified professional.