Generalaire MHX3 Select-Control Duct Mount Humidistat (Part # 7037)

The M3 humidistat provides low voltage control of humidifiers installed in central heating systems.
The humidistat has a SPST switch and is designed for duct mounting on the return air duct.
Includes mounting template, owners manual, mounting screws, foam seal
2-Year Factory Warranty

RANGE: 10% to 60% RH ELECTRICAL RATING: 30 VAC / 60 VA

Dimensions: 4-7/8" W X 3" H X 1-5/8" D
Duct Cutout Dimensions: 3-3/4" W X 2-3/8" H