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WIRELESS DETECT SWITCH
Model : DS-121
* DS-121 is the standard accessory and the optional accessory of GSM-120.
* Two wireless detect switches （DS-121） are included in each set of GSM-
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详细介绍
| Description： |
| WIRELESS DETECT SWITCH Model : DS-121 * DS-121 is the standard accessory and the optional accessory of GSM-120. * Two wireless detect switches (DS-121) are included in each set of GSM-120. * User can install the DS-121 on the door or window easily. When the thief interrupt the house buzzer will sound and send the SMS alarm message to the . |
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