Keypad to add

Anyone know a good keypad to arm/disarm etc?

The Centralite one available at Lowes as an Iris keypad works well.

You can get it in a bundle on-sale at Lowes as well using the below coupon (40%, regular price is 99.99 and comes with a motion sensor and 2 door/window open/closed sensors as well - all ST compatible)

Coupon is good until 2/8/2016, so 1 week left.