RL4012 Temperature Transmitter with door switch -40°C to +60°C

RL4012 Temperature Transmitter with door switch -40°C to +60°C

Product code: RL4012-434.075

Part of the RL4000T Series, the RL4012 (dual channel) transmitter provides a temperature measurement with door switch and includes LCD display and 2 Pin Lemo socket.

Instrument measuring range: -20°C to +60°C 

Probes are available separately – see below for compatible probes

RL4012 datasheet

Wireless Temperature Transmitter

The RL4012 (dual channel) wireless temperature transmitter has LCD display and provides an accurate temperature range of -20°C to +60°C. This unit also comes with a door switch included. Use this wireless temperature transmitter with our premium Hanwell Pro wireless system for a complete and comprehensive solution to wireless temperature monitoring 24/7, contact us today for your free quotation and signal strength test or to discuss your application.


✓ Dual channel Thermistor instrument
✓ Door ajar/open event logs
✓ LCD display with data readings & 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

• Fridges
• Freezers
• Chillers


For Instrument specification, please click on the Hanwell Pro RL4012 transmitter datasheet.


This product is to be used in conjunction with HanLog software or 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

Manufactured by Hanwell | Ellab