Genuine Bisley product - The poacher alarm takes a 12 gauge blank cartridges and is activated by a trip wire, each sold separately (see below).  The alarm can be positioned on the ground or attached to a post or other stable surface.  If the wire is tripped, the released pin fires the blank cartridge.  A great deterrent and highly effective at protecting what's yours!
 
Uses a 12 gauge blank cartridge - Blanks not included
Activated by a trip wire
If the wire is tripped, the released pin fires the blank cartridge
Highly effective
 
12 Gauge blank cvartridges are sold separately - product code BOXZ-AM (sold in packs of 5, 10 and 25) You must be over 18 years of age.
 
For the trip wire, we reccomend strong fishing line/braid (anything above 8lb so that it's strong enough)