Dual Sensitivity and Range: Voltage tester can detect voltages in two voltage ranges: 12V-1000V / 48V-1000V (adjusted by "S" key). The probe's NVC sensor recognizes the voltage and displays it on the LCD screen. It meets many needs of residential, commercial and industrial environments. LCD Display and High Voltage Alert: During the test, the voltage intensity is displayed on the screen. The screen will light up in red or green. If the red LED flashes, a fast timeout alarm indicates that the phase is detected. If the red light does not flash, it means that the neutral is detected. The screen will turn red and display a high voltage symbol when the voltage is over 90V. Non-Contact Voltage Tester: The voltage detector's insulated housing ensures safety. As the voltage signal strength changes, the bar graph on the screen increases or decreases and the frequency of flashes and beeps becomes faster or slower with the signal strength. Auto-off and LED function: Automatic shutdown let you save and control electricity; Equipped with a flashlight on the tip, allows it to be used in the event of a power outage or in dark environments; Pocket clip allows easy attachment. Feature 1: Non-contact measurement Feature 2: Detect line under voltage zero, line breakpoint detection Feature 3: Sensitivity can be adjusted Feature 4: Low Battery Voltage Display Feature 5: Torch Lighting Feature 6: High voltage circuit alarm function Feature 7: Phase sequence AC voltage AC 12V~1000V/48V ~1000V Frequency: 50Hz/60Hz Alarm Method: Sound & Light Alarm / Indicator Light / Bar analog Illumination flashlight: White LED illumination Probe shape: flat Low Battery Reminder: Ont Live and Neutral: Analog Sound/Light/LCD Display Bar Non-contact sensitivity: Yes (adjustable) Auto power off: About 3 minutes without induction signal or any operation, it will power off automatically Security level: CAT.IV 60oV/CE/100oV CAT The battery: Two AA batteries (2X1 .5V AAA) Product size: 159mm*21mm*20mm Display: LCD display Quantity delivered: 1 piece (with battery)