Auto-Trac Humidistats, #56 $79.00 Auto Trac Sensor and Shield, #8052 (Replaces Part #4278) $14.95 Humidistat Adaptor Plate, #4039 Regular Price: $7.00 Sale Price: $5.70 Bemis Digital Hygrometer $23.85 Manual Thermostats Digital Electronic Thermostats Digital Electronic Programmable Thermostats Aprilaire Sensors for Digital and Programmable Thermostats Communicating Thermostats Schill's, llc 103 Curtis Street Arlington, WI 53911 Limited Hours Customer Service: 888-528-0225 Email: Info@Schills-Humidifier.com Fax: 608-592-3205 Manufacturer's Numbers: Aprilaire: 800-334-6011 Broan Fan/Heater Questions: 800-637-1453 Delta Faucet Questions: 800-345-3358 Grohe Faucet Questions: 630-582-7711 Hart & Cooley Questions: 616-656-8200 Kohler Faucet Questions: 800-456-4537 Moen Faucet Questions: 800-289-6636 Stiebel-Eltron: 800-582-8423