RL4107 RH/T & Water Leak Radio Transmitter

Temperature, humidity and water leakage sensor

Part of the Hanwell Pro RL4000RHT Series, the RL4107 combines temperature and humidity measurement using an integral Sensiron SHT35 sensor with the option of connecting a flood probe. This reliable transmitter is used with our renowned Hanwell Pro wireless system for 24/7 monitoring and alarm notifications. Contact us today for your free quotation and signal strength test (we can prove ours to be unrivalled) or to discuss your specific temperature monitoring requirements and application.


✓ Combined temperature & humidity measurement
✓ Damp & leak detection
✓ LCD display with 50,000 data readings per channel & up to 2 years battery life
✓ Superior performance hardware & high accuracy sensors
✓ Easily accessible battery & USB socket
✓ Low power radio for long distance transmission (3km over open ground)
✓ Complies with RoHS, EU & WEEE directivesSignal-strength-message
✓ Carries UKCA and CE Marking

Typical Applications

• Dry storage
• Ambient room conditions
• Damp & leak detection


For Instrument specification, please click on the Hanwell Pro RL4107 transmitter datasheet.


This product is to be used in conjunction with the Hanwell EMS software for comprehensive centralised monitoring.

Compatible products

V053 – Leak detection cable

Software Required:
W900 – Standard Hanwell EMS Software Package
W906 – Validated Hanwell EMS Software Package
*See EMS datasheet for further options

Hardware Required:
SR2 – Smart Receiver
CR2 – Controller
REP – Repeater

Y119 – Wall mounting bracket
88706 – AA Lithium battery

Manufactured by Hanwell | Ellab