RL4000T Series of Radio Transmitters

RL4000T Series of Radio Transmitters

The Hanwell Pro RL4000 Series of temperature monitoring radio transmitters ranges from -200°C up to +110°C and in between (depending on application).

Click on the individual products below for more information.

These wireless temperature sensors range from -200C up to +110C and in between (depending on application)

The 4000T series of wireless temperature sensors are well established as the most flexible units on the market today. Each unit has been designed to be compatible with a wide range of temperature probes to provide accurate and reliable measurement specifically selected for the user’s requirements.

Additionally, temperature data can be wirelessly transmitted directly to a local PC for automatic and immediate notification and analysis. Most wireless devices include the logging facility to guarantee against data loss in the event of radio communication loss.

The units are powered by a single 3.6 Volt AA Lithium battery, which can be replaced by the user as and when required. The battery life will be dependent on the method of data collection but can last up to 3 years, with notification of when a change is required.

Choose from our range of wireless temperature sensors above to see individual datasheets or contact us for more information about your application today.

Product Features

  • Manufactured by Hanwell | Ellab
  • High-performance technology with accurate probes
  • LCD display with data readings and battery life
  • Superior performance hardware with high accuracy sensors
  • Logger memory capacity 100,000 readings
  • Easily accessible battery and USB socket
  • Supports (optional) hidden wall brackets
  • Low power radio for long distance transmission (Over 3km over open ground)
  • Up to 3 years battery life (depending on format of data retrieval)
  • Complies with RoHS, EU and WEEE directives
  • Carries CE Marking


  • Assists with national regulatory compliance
  • Provides users with the tools to maintain a stable environment
  • Reduces the risk of damage to stock caused by temperature fluctuations
  • Radio transmitters eradicate errors caused by manual checks
  • Vast range of units and probes provide users with multiple temperature related applications
  • Easily calibratable hardware ensures accurate and reliable data for years


This range of products should be used in conjunction with the Hanwell EMS software for comprehensive centralised monitoring.

Compatible products

Software Required:
W900 – Hanwell EMS Software Package

Hardware Required:
IN-NR001F1 – Network Receiver

Optional Hardware:
IN-RP002F1 – Hanwell IceSpy Repeater
IN-NA002 – ARB Module (Alarm, RFID and Bluetooth)
IN-TA001 – SMS Module

For more information about our wireless high temperature sensor and/or low temperature senor units, contact us today.