I bought a PACT timer, since it's what the local club uses for CAS matches... figured if they needed an extra for regionals or state match shoots, they could borrow mine
Check out the new Shotmaxx from Double Alpha and CED electronics.
The size of a watch with all kinds of neat features, including a way to use it at a public range with other people shooting.
Very cool, for around $150. http://www.cedhk.com/shop/products/DAA-SHOTMAXX-Timer.html