This is a perfectly good unit. Decent price. You can often get it at Walmart.com too with very cheap shipping.
http://www.midwayusa.com/product/531...f1-chronograph
However, you really have to have the remote. If you don't have it, you can't access shot strings, deviation, spread and average numbers. It's pretty easy to make one yourself, just google it for instructions - I recall that it's just a single pole/single throw switch with a 3 pole mini plug.
http://www.midwayusa.com/product/286...vc=sugv1531741