1. Intelligent zero line recognition, sound and light alarm, safe and reliable 2. Intelligent shutdown, humanized energy-saving design 3. Flexible switching of high and low sensitivity for more accurate and flexible measurement 4. High protection level, and sturdy, wear-/scratch , not easy to break 5. Thickened pen clip for easy hanging and carrying Note:Due to different production batches, the printed labels are different. AC voltage: 12V-1000V Frequency: 50Hz/60Hz Alarm mode: sound/light/analog Display: LCD screen Probe shape: flat Low battery indicator: Yes Live and neutral wires: sound/light/LCD analog display Non contact sensitivity: adjustable Automatic shutdown: 3 minutes without induction or operation, automatic shutdown Product size: 157.3x24mm Color:Yellow Material:plastic Package Contents: 1 * Meter Electric Sensor (2 x AAA batteries are not included) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.