Aprilaire® 4655 Manual Humidistat Control, For Use with 400M, 500M, 550, 1130 and 1140 Series Humidifiers
Aprilaire® 56 Automated Humidistat Control, For Use with 220, 224 and 400 Series Humidifiers
Honeywell H600A1014 Wall Mount Humidistat, SPDT, 20 to 80% RH Humidity, 120/240 VAC, 5% RH Differential, Gray
Honeywell HumidiPRO™ Digital Humidity Controller, 24 VAC, 50/60 Hz, Return Duct/Wall Mount, -20 to 120 deg F
Honeywell Tradeline® H46D Humidifier Controller, 10 to 60% RH Humidity Range, 240/120 VAC, 4 - 6% RH Differential
Honeywell Tradeline® H8908B Humidifier Controller, 10 to 60% RH Adjustable Range, SPST, 24 V, 2 A Contact Rating
Honeywell Tradeline® H46E Humidifier Controller, 20 - 60% RH Humidity Range, 120/24 VAC, 4 - 6% RH Differential, Beige