RL4805/6 Flood Transmitter

Leak detector and Flood Sensor

The RL4805 and RL4806 are single and dual channel transmitter with flood sensor used for flood and leak detection for 24/7 notification of water ingress. This reliable transmitter is used with our renowned Hanwell Pro temperature humidity monitoring system for 24/7 data and instant 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.


✓ High-performance technology with advanced flood detectors
✓ Low power radio for long distance transmission (Up to 3km over open ground)
✓ Superior performance hardware with flood cable
✓ Easily accessible battery and USB socket
✓ Complies with RoHS, EU directives and WEEE
✓ Carries CE Marking

Typical Applications

• Buildings in close proximity to rivers
• Museums
• Housing associations

Flood Cable


For Instrument specification, please click on the Hanwell Pro RL4805/6 transmitter datasheet.


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

Compatible products

VO53 – Flood cable (contact us for information)

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

88706 – AA Lithium battery

Contact us for more information about this wireless flood detection and leak detection with our complete monitoring solutions. Alternatively speak to us about your specific application.

Manufactured by Hanwell | Ellab