Yamaha Cymbal Dual Zone PCY 80 S. #1
  Has the 1/4" input, and sensitivity adjustment. I have 2 for sale, both barely used, and are 1 1 1/2" from corner to corner . This one is the nicer of the 2, second one has a couple small spots of black, and some dirt on the edge, and is available in my other listings for $5.00 less. Buy both, in my other listings and save $5.00.  Super hard to find item now.
Parting out a Yamaha and Alesis sets, so check out my other listings. If you need multiple parts, LMK your zip code, and the items you want, and I will give you a combined shipping discounted price.