| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily confirm the battery voltage of a buzzer tag at an appropriate time to prevent battery exhaustion, to enable only an operator to easily remove the buzzer tag from a commodity, and to facilitate the attachment/ detachment operations and the maintenance management of the buzzer tag which are necessary for operation of a burglar monitoring device using a buzzer tag. SOLUTION: An alarm circuit of a buzzer tag 5 operates by a built-in battery and produces an alarm when the tag 5 attached to a commodity passes through the monitoring area of a gate. An alarm tag canceler 30 is provided outside the monitoring area of a register, etc., and cancels the lock of a lock mechanism when the tag 5 is put into the insertion part of the canceler 30. The canceler 30 contains a detection pin 32 which is connected to the detection terminal of the tag 50. When the tag 5 is put into the insertion part of the canceler 30, the battery voltage is detected by a voltage detection circuit in addition to cancelation of the lock mechanism. As a result, the battery replacement is urged when the drop of the battery voltage is notified.</p> |
