A versatile and very affordable control, this Tjernlund Dehumidistat for Crawl Space Ventilator is suitable as a replacement dehumidistat control for any fan or louver with a load of less than 10 amps.
- Replacement part
- Will require some hardwiring
- Can adjust up to 80% humidity
This control will switch on fan based on rise in humidity. Its operating range is 20% - 80% RH, and it was designed to be adjustable up to 80 percent humidity.