Keepguard GSM Wireless live Trap Alert is great tool for remotely monitor wildlife trapping, it make the trapping game more convenient and esier. Trap alert will give a call or sending an SMS message to one or several mobile numbers once there is a wild animals was catched by your trap, hunter no need to lurke around the trap or waste time to drive back to check empty traps, that make hunting much easier and safer. Features1. Easy to install.2. Support GSM SIM card.3. Support: 1-5 mobile numbers.4. Daily report confirming device is working OK.5. Fast response when being triggered.6. Long working hours: up to 6 months.7. Weatherproof: IP658. Power supply: 4 x AA 1.5V alkaline batteries.9. Working temperatures: -25°C to +60°C.