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| Operating frequency: |
20 Khz |
Weight: |
272 g(including the battery) |
| size: |
Length: 420mm width : 138mm height: 110mm |
handle measurement: |
30X30mm |
| Regulate the way: |
Manual |
Indicator: |
BZ , vibration motor |
| LED light proves : |
LED red warning indicator lamp LED green insufficient indicator lamp of voltage of indicator lamp LED battery of power |
| Battery: |
A 9V battery (suitable for working for 40 hours normally) |
Control: |
Circulation switch (ON, OFF, a sound of light or mode of vibration) |
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characteristics:
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Characteristics:
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1\ Use cycle-switch to switch sound alarm and hidden vibration alarm respectively |
| 2\ Hight sensitive,detect ferror metal and non-ferror metal |
| 3\ Sound and light alarm simultaneously |
| 4\ Alkaline cell (7V-9V) can work over 40 hours and distance does not change |
| 5\ Warn automatically when short of voltage |
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