Key Features
Tests wiremap: show open, short, cross, reverse wiring faults
Measures cable length and locates open/short distance
Supports UTP / STP (Cat5e, Cat6) and coax / telephone lines (in some versions)
Big LCD screen for results
Automatic power-off after inactivity (≈ 30 minutes)
Dynamic calibration: user may adjust based on known length cable (for better accuracy)
Technical Specifications
Parameter Value
Cable length range 1 m up to 305 m (≈ 3 ft to 1,000 ft) for twisted pair cables
Calibration accuracy ~97% (±0.5 m / ±1.5 ft) for calibration cable > 5 m
Max working current < 70 mA
Voltage protection AC 60 V / DC 42 V
Display size ~ 61.5 × 25.2 mm
Power supply 4 × 1.5 V AA batteries
Operating temperature –10 °C to +60 °C
Dimensions (main unit) ~ 18.4 × 8.4 × 4.6 cm
Remote / far-end unit size ~ 7.8 × 3.3 × 2.2 cm