Commercial 81T 81T201 Electronic Exposed Water Closet Flush Valve with Wallmount Sensor - Hardwire OperatedElectronic Exposed Water Closet Flush Valve with Wallmount Sensor Hardwire Operated Hardwire flush valve for 1 1 2" top spud water closet with H2Optics wallmount sensor maximum 11 1 2" height Scratch resistant replaceable lens window Infrared sensor range adjustment of 24 56", in 8" increments 110 to 24 VAC transformer required (sold separately 060704A or 060771A) Set up sensor range adjustment indicator lights Teck chloramine resistant diaphragm for