Review on ACDelco ARM302 4S Electronic: Ultimate 12 5 250 7 Notification Device by Jonathan Abreu

I didn't have any battery life issues like other reviews said. It is very accurate and plugs directly into the switch or socket. So far I've used it to tighten the head, water pump, crank pulley (147 ft/lb) and motor mounts. So far no complaints, I think the purchase is justified. It even comes with a carrying case, which is nice as dropping a torque wrench can affect its accuracy. It starts at about 12/13 ft/lb. So if you need a lower value, buy an inch/lb torque tool.