Theft prevention device

摘要: PROBLEM TO BE SOLVED: To securely give an alarm against theft and inform of the even when unjust person removes a vehicle battery to obstruct informing in order steal vehicle. SOLUTION: While monitoring mode is set by setting switch 111, power supply control part 109 monitors voltage 9, switches from auxiliary 112 9 shut off, sends signal 102. The 102 maintains prevention device 1 operation condition 112, determines that occurs switching performs processings.