Specifications:

Manufacturer: Honeywell
Manufacturer Part Number: W8735Y1000
Product Type: Aquastat Controller Reset Module and Sensor
Voltage Rating: 24 VAC
Frequency: 60 Hz
Temperature Rating: -30 to 150 Degrees F
Humidity: 0% to 95% Relative (Non-Condensing)
Dimensions: 7.15" x 5.4" x 3.75"
Weight: 0.98 lb.
Includes: L7224/L7248 Series Aquastat Controller