4C22 .22 Caliber Blank Power Loads are compatible with the 12 Gauge Perimeter Trip Alarm if you have the .22 Adaptor. 
 
Specifications
.22 Caliber Type: 4C22 Blanks 
Sound Rating: 127dB
Pack of 100
 
PLEASE NOTE: We are not able to ship Internationally. Your order will be automatically deleted and refunded.