RH & Temperature Controller With 2 Relay Outputs (12-24V)
The N322RHT is a digital controller for relative humidity and temperature, well suited to food storage and processing, agriculture and greenhouses, and data centres. Its 2 relay outputs can be configured independently as control or alarm, either for temperature or relative humidity, giving good climate control across a range of environments.
The controller should be matched to a suitable Novus RHT probe, available in 3M or 6M lengths.
Optional models include 240V supply and RS485 communication — please contact us for further information on these models. Looking for a low-cost alternative? See our Ageon A103 PID U, which offers incredible value with probe included.
✅ 3 Year Manufacturer Warranty — backed by our UK-based technical support
Novus N322RHT Datasheet Download
Technical Details
Indication of the selected variable or alternate. One SPDT: 1 HP 250 Vac / 1/3 HP 125 Vac (16 A Resistive) relay output. One SPST-NA: 3 A / 250 Vac relay output
Humidity — Measuring range: 0 to 100% RH. Accuracy for RH: 3% @ 25°C. Measuring resolution: 1% over full range
Temperature — Measuring range: -30 to +105°C (-22 to 221°F). Accuracy for Temp: 0.5°C @ 25°C. Resolution: 0.1°C from 19.9 to 199.9°C
Frequently Asked Questions
Does this come with a probe?
No — the N322RHT should be matched to a compatible Novus RHT probe (3M or 6M lengths), sold separately.
Can both outputs control temperature at once, or must one be humidity?
Either output can be configured independently for temperature or humidity control or alarm — they don't have to be split one-per-variable.
Is there a mains (240V) or RS485 version?
Optional 240V supply and RS485 communication models are available — contact us for details.
Industry Applications
- Food Storage & Processing — independent RH and temperature control for controlled environments.
- Agriculture & Greenhouses — climate control across a range of growing conditions.
- Data Centres — dual-parameter monitoring and alarm for humidity-sensitive equipment.