A24 Digital Strike Counter *Sub Brand: A24 *Trap Size: Small *Trap Style: CO2 Powered *Product Type: Digital Strike Counter *Animal Type: Mice and Rats *Number in Package: 1 pk *Animal Size: Small *Safe for Pets: Yes *Indoor or Outdoor: Indoor and Outdoor *Trap Type: Kill Trap *Disposable or Reusable: Reusable *Packed into a tiny enclosure, the Strike Counter slides onto the CO2 canister, is easy to check and reset and spends most of its day asleep. It is sparked into life when the trap is set off recording the action from the first kill up to 99. Because it sleeps so much, you?ll get a few years between battery changes, even if you check it weekly.