MistKing HT-24 Hygrostat & Thermometer for MistKing Systems

The MK HT-24 is a dedicated hygrostat and thermometer controller designed to work with existing MistKing misting systems. Rather than running your misting setup on fixed intervals, the HT-24 continuously monitors actual humidity levels via a remote probe and triggers the pump only when conditions demand it — giving you genuine, responsive humidity control rather than guesswork. It connects directly to the MistKing 24V power supply, not a mains outlet, keeping the setup clean and low-voltage.

Day & Night Humidity Control

The HT-24 lets you set separate target humidity levels for day and night periods, with configurable start times for each mode. This makes it well-suited to species with distinct diurnal humidity requirements — for example, maintaining 75% RH during the day and dropping to 60% at night without any manual intervention.

Variance & Alarm Settings

• Variance setting determines how far humidity can drop below your target before the pump activates — for example, set a target of 75% with a 5% variance and the system triggers at 70%, avoiding unnecessary misting cycles
• Low humidity alarm sounds an audible alert if RH falls below your specified threshold, giving you an early warning of equipment issues or environmental changes

Controls & Display

• Backlit LCD control panel for clear reading in low light
• Remote humidity and temperature probe for accurate in-enclosure monitoring
• Manual override function allows you to trigger misting on demand without disrupting the programmed timer or humidity schedule
• Rechargeable internal battery retains all settings in the event of a power failure

Compatibility

The HT-24 is designed specifically for use with MistKing misting systems and connects directly into the existing MistKing power supply. It is not compatible with third-party misting systems or standard mains-powered controllers. If you are running a MistKing setup and want to move from timed misting to humidity-driven control, this is the dedicated solution for that upgrade.

For keepers housing species that require consistent, species-accurate humidity — whether tropical reptiles, amphibians, or bioactive vivaria — the MK HT-24 removes the guesswork and gives you a system that responds to actual conditions rather than a fixed schedule.