J10-821 MFG #: J10-821
Out of Stock
  • Category: Humidistat
  • Refresh Carrier Images: Done
  • Sx.e Stocking Unit: Each
  • Sx.e Vendor: NEUCO INC
Robertshaw (Ranco) 24/60 VAC, 20 to 80% RH, Horizontal Wall Mount, Manual, Humidistat

The J10 Series Humidistats and Dehumidistats are designed to regulate the relative humidity of confined spaces by cycling humidifying or dehumidifying equipment. Designed for central systems, the J10 controls are made from high impact plastic with a brushed finish dial plate. The J10's nylon sensing element provides long life and accurate humidity control. The J10-821 humidistat can be wall mounted or installed directly in a cold air return duct.

Features & Benefits

  • Strong Plastic Frame with Integral Switch Eliminates the Need to Ground the Control
  • Improved Woven Nylon Sensing Element Provides a Faster Response Time
  • Greater Stability in Set Points Over Dramatic Changes in Relative Humidity


  • Type: Wall Mount
  • Action Type: Manual
  • Humidity Set Point Range: 20 to 80 Percent RH
  • Temperature Rating: 32 to 140 Deg F
  • Mounting Type: Horizontal Mount
  • Voltage Rating 24/60 Volt AC
  • Differential Relative Humidity 5 Percent