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To turn on the device: Press and hold the power button for 3 seconds, a beep will sound, and the digital tube will flash green numbers and then disappear.
To turn off the device: Press and hold the power button for 3 seconds, two beeps will sound, and then it will automatically shut down.
You can choose to adjust the sensitivity between 1-4 by pressing the sensitivity button continuously.
1st level: 15KHZ, digital display 1 with 6s
2nd level: 20KHZ, digital display 2 with 6s
3rd level: 30KHZ, digital display 3 with 6s
4th level: 15KHZ-30KHZ, it will emit for 1-3 level 3 different ultrasonic frequency sounds with 6s, digital display 4.
|Dimension||3.49 x 3.19 x 1.38 inches|
|Package Weight||0.44 lb|