Once your trap is armed it will automatically reset after each strike

power and lure levels

you won’t always see evidence of your success

When you check your trap

CO2 Canisters Size:30-pack Once your trap is armedThe CO2 canister is what powers your trap, enabling it to automatically reset and kill 24 rats or mice before it needs replacing. Early on, we discovered that not all gas canisters are made equal. We tested dozens before choosing the highest possible quality to keep your trap running smoothly. To maximize the life of your trap, we recommend using Goodnature CO2 canisters. Delivers 24 strikes per canister 16g of CO2 per canister Non flammable Single