Features:
1. Easy Distinguished: The fire line and zero line can be distinguished by the alarm sound of different frequencies and the color of the backlight, even in the place where the light is dim.
2. Wide Usage: The detection range is 12V-1000V AC voltage, which can be applied to various places.
3. Non-contact AC Voltage Detection: When the equipment is close to a large AC voltage within the specified voltage range, the tester will flash and emit a beep. It is more convenient to detect without touching the object on the side.
4. Undervoltage Display: With battery undervoltage display and backlight display, and LED light function, measuring pencil can remind you to replace the battery in time and operate in the dark environment.
5. Automatic Shutdown Function: When you misoperate for more than five minutes, voltage tester pen will automatically shut down to save power. The whole body is made of insulated ABS material, light, durable and convenient to carry.

Specification:
Model Number: Voltage Tester Pen
Type(optional): HT90 HT100 HT100P HT101
Product size: 145 * 28 * 24mm(5.7*1.1*0.9in)/157 * 27 * 23mm(6.2*1.1*0.9in)
Display: LED display (HT90)/analog bar (HT100 HT100P HT101)
Voltage detection range: high sensitivity: AC12-1000V, low sensitivity: AC48-1000V
Frequency: 50/60Hz
Alarm mode: audible and visual alarm
Probe shape: flat length
Backlight color: red and green backlight (HT90 without backlight)
Judgment of zero and live line: according to the indication of signal strength, the live line is stronger than the zero line signal. (HT90)
According to the backlight color change: green is the zero line, red is the live line (HT100 HT100P HT101)
Signal strength display: LED three-level sensitivity (HT90)/analog bar four-level sensitivity (HT100 HT100P HT101)
Signal strength indication: the beep changes from slow to fast, the LED light changes from low to high (HT90)/the beep changes from slow to fast, the backlight color changes from green to red, and the analog bar changes from low to high (HT100 HT100P HT101)
Flashlight: Yes
Battery undervoltage display: Yes
Power supply: 2 * 1.5VAAA battery (not include battery)
Automatic shutdown: no key operation, automatic shutdown after about 5 minutes without induction signal