RL4115 Temperature and Humidity Radio Transmitter

RL4115 Temperature and Humidity Radio Transmitter

Product code: RL4115-434.075

Part of the RL4000RHT Series, the RL4115 RH/T radio transmitter has C-Sense temperature and EE07-02 RH probe compatibility.

Instrument measuring range: -40°C to +60°C | Humidity measuring range: 0-100%RH non-condensing 

Probes are available separately – see below for compatible probes

RL4115 Datasheet

Multi Channel Temperature Sensor

Part of the Hanwell Pro RL4000RHT humidity wireless logger Series, the RL4115 combines C-Sense external temperature and EE07-02 relative humidity 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
✓ 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 directives
✓ Carries UKCA and CE Marking

Typical Applications

• Dry storage
• Ambient room conditions
• Fridge and freezer (with remote probe)


For Instrument specification, please click on the Hanwell Pro RL4115 humidity wireless logger datasheet.


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

Compatible products

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

Contact us today to discuss how our humidity wireless logger can be used for your specific application.

Manufactured by Hanwell | Ellab