RL4108 RH/T & Surface Temperature Radio Transmitter

RL4108 RH/T & Surface Temperature Radio Transmitter

Product code: RL4108-434.075

Part of the Hanwell Pro RL4000RHT Series, the RL4108 RH/T radio transmitter is fitted with onboard sensors and optional remote surface temperature probe.

Instrument temperature measuring range: -20°C to +60°C | Humidity range: 10-90%RH non-condensing

External Probes are available separately – see below for compatible probes

RL4108 Datasheet

RH/T and surface temperature monitor

Measure surface temperature with the RL4108, Part of the Hanwell RL4000RHT Series.The RL4108 RH/T radio transmitter is fitted with onboard sensors and optional remote sensors. See below probe options for more information.


✓ Combined temperature & humidity measurement
✓ LCD display with 33,333 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 CE Marking

Typical Applications

• Dry storage
• Ambient room conditions
• Measure surface temperature 


For Instrument specification, please click on the Hanwell Pro RL4108 transmitter 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 for more information about this product or our range of surface temperature sensors. Alternatively, contact us to discuss your specific application, we will almost certainly have a solution for you.

Manufactured by Hanwell | Ellab