The RHT-Probe is a digital sensor for temperature and relative humidity, compatible with our N322-RHT electronic thermostats. The sensor is protected by a polyamide capsule and comes with a 3 metre PVC cable — well suited to food storage and processing, agriculture and greenhouses, and data centre humidity monitoring.
✅ 1 Year Manufacturer Warranty — backed by our UK-based technical support
Novus RHT-Probe Manual Download
Technical Details
Humidity — Range: 0-100% RH. Accuracy: ±3% (typical). Repeatability: ±0.1% RH. Hysteresis: ±1% RH. Linearity error: <1% RH. Stability: <1% RH/year. Response time: ~8s to reach 63% of a fast input change (@25°C, 1 m/s airflow)
Temperature — Range: -20 to 100°C (-4 to 212°F). Accuracy: ±0.5°C (typical). Repeatability: ±0.1°C. Response time: up to 30 seconds in slow moving air
Warm-up: 15 minutes. Measurement resolution: RH 0.1%, Temperature 0.1°C
Operating environment: -20 to 100°C, 0-100% RH
Housing: sensor capsule IP40, PVC cable, 3 metres (not compatible with cable extensions)
Frequently Asked Questions
Which controllers is this compatible with?
Our N322-RHT (100-240V) and N322-RHT-24V controllers.
Can I extend the cable?
No — the 3 metre cable is not compatible with cable extensions, so choose the length you need at purchase.
Is there a longer cable option?
Yes, see our 6M version.
Industry Applications
- Food Storage & Processing — accurate humidity and temperature sensing for controlled environments.
- Agriculture & Greenhouses — monitors growing conditions across a wide temperature and humidity range.
- Data Centres — humidity monitoring for equipment-sensitive spaces.