Hygrostat/Thermometer HT-24

MistKing Hygrostat Controller – HT‑24
Automatic Humidity Control for MistKing Systems

Maintain precise humidity levels with the MistKing HT‑24 Hygrostat Controller. Designed exclusively for MistKing misting pumps, this low‑voltage controller activates misting based on real‑time readings from its remote humidity/temperature probe—no more guessing, just perfect conditions. Great addition to a small greenhouse or anything where precise humidity control is required.

NOTE: As with any humidity probe-based controller ensure that you do not spray directly onto it as it will give you unreliable performance (such as false readings of 100% humidity due to the moisture on the probe), thus its generally not recommended to use this for smaller enclosures as naturally this will happen.

Key Benefits & Features

• Backlit LCD Control Panel: Clear display of humidity and temperature for easy monitoring.
• Remote Humidity/Temperature Probe: Accurately senses enclosure conditions without direct water contact.
• Day & Night Humidity Settings: Program separate target RH levels for daytime and nighttime cycles.
• Low‑Humidity Alarm: Beeps when humidity falls below your set threshold.
• Variance Threshold: Define a drop range (e.g., 5%) before the pump reactivates to maintain stability.
• Manual Override: Instantly trigger misting without altering your programmed settings.
• Battery Backup: Retains all schedules and parameters during power interruptions.
• Low‑Voltage Operation: Plugs into your existing MistKing 24 V supply—no separate outlet needed.
• MistKing‑Exclusive Design: Guaranteed compatibility and performance with all MistKing systems.

Programming Example:

Day: Maintain 75% humidity

Night: Maintain 60% humidity

Low Humidity Alarm: 40% (Will beep if RH will drop to 40%)

Variance 5% (ie. will raise humidity to 75% but will allow for a drop to 70% before turning on the system again)

Resources

HT-24 Instructions (click)

NOTE: