Features: 3 results display screen Auto and manual mode AC/DC voltage, resistance, frequency and continuity test Live-wire check and V-alert test Auto range, Auto power off, data hold, low battery indication Specifications: Display: 2000 counts Screen: 1.9 inch DC Voltage: 0V-500V(DC Mode) /0.5-500V(Auto Mode) 0.01V ±(0.8%+3) AC Voltage: 0V-500V(AC Mode) /0.8-500V(Auto Mode) 0.01V ±(1.2%+5) Resistance: 0Ω-2MΩ 1Ω ±(1.2%+3) Frequency: 40-1000Hz(0-30V AC)/40Hz-400Hz(0-500V AC) 0.1Hz ±(2.0%+10) Continuity: If the resistance less than 50Ω, the beeper sounds V-Alert (Non-contact Voltage Detection): Yes Live Wire Check: Yes Power: 1.5V (AAA) x 2 Size: 185*22*22mm Weight: 52g Package Includes: 1 x Voltage Detector 1 x Test Lead 2 x AAA Batteries 1 x Screwdriver 1 x User Manual