RL4402-DU Temperature Transmitter -200°C to +110°C

Low and High Temperature Sensors

Part of the RL4000T Series, the RL4402 (dual channel) 4-wire rugged PT100 unit with fitted 5-pin metal Lemo socket for external low and high temperature sensors and LCD display. All of our products can be easily calibrated in-house to traceable or UKAS as and when required by our customers, contact us for more information about calibration.


✓ Dual Channel PT100 instrument
✓ LCD display showing data readings and a battery life indicator
✓ 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 and carries CE and UKCA Marking

Typical Applications

• Poultry or Fish processing areas where wash down occurs
• Outside areas with a high mosture content


Wireless data logger specification

For the Instrument specification, please click on the Hanwell Pro RL4402-DU transmitter datasheet.

Low and high temperature sensor specification

For a range of low or high temperature sensor options, browse our probe datasheet


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

Compatible products

Software Required:

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

Hardware Required:

Probe datasheet – High temperature sensor
SR2 – Smart Receiver
CR3 – Controller
REP – Repeater

Y550 – Wall mounting bracket
88706 – AA Lithium battery

Find out more about about our range of low and high temperature sensors and how they can be used to suit your application or alongside a larger system using our centralised monitoring system, EMS. Contact us today or call us on +44 (0) 1462 688 070.

Manufactured by Hanwell | Ellab