Certainly. A radar like this one formed part of a weapons system. It found the enemy and allowed the ground controllers to alert and send interceptors to attack them. It is a weapon in the same sense that one might think of the scope on a sniper rifle. It improves the performance as part of a system.
Electronics and electronic warfare in WW II was a completely new frontier in warfare. It increased the effectiveness of many other weapons both offensively and defensively. No one could argue that the system of radar controlled fighter interception played a pivotal role in saving Britain in 1940 against the Luftwaffe's bomber campaign.