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Temperature Range of -10°C to +55°C

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EMS Compatible

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Live Data

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Hanwell Pro RL401 Wireless Transmitter

Short thermistor sensor

The Hanwell Pro Bug wireless temperature transmitter is small in design and suitable for a single channel thermistor sensor.

Instrument measuring range: -10°C to +55°C

Typical Applications

• Fridges
• Freezers
• Chillers

Compatible with our wireless EMS monitoring system for real-time 24/7 data (anytime and anywhere) and instant alarm notifications.

Sensor Options

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Short Precision Thermistor
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Key Features and Benefits


Superior performance hardware & high accuracy sensors


Easily accessible battery


Low power radio for long distance transmission


Up to 1-year battery life (dependent on use)


Complies with RoHS, EU directives and WEEE


Carries CE Marking

Instrumentation Specification

Dimension (Excl. ancillaries):

105 x 65 x 19mm


100 grams (without battery)

Power supply:

2 x AAA Alkaline battery

Battery life:

Up to 1 year (dependent on conditions
of use and instrument settings)

Case Material:


IP rating:


Instrument measuring range:

-10°C to +55°C

Storage temperature:

-40°C to +60°C

Radio transmitter functions:

Radio frequency options:

A range of frequencies are available between 433-458MHz. Country specific regulations apply.

Radio power:


Radio range:

3km over open ground

Software required:

Standard EMS Software Package, or
Validated EMS Software Package
*See EMS datasheet for further options

Hardware required:

CR2 / CR3 – Controller
SR2 – Smart Receiver
REP – Repeater

The Hanwell EMS Software

The Hanwell environmental monitoring software (EMS) can be used with Hanwell Pro and Hanwell IceSpy hardware to provide a secure and flexible tool for comprehensive data collection, analysis and immediate alarm notification.

Validatable software
Specifically for the pharmaceutical sectors, we provide comprehensive IQ and OQ protocols and custom protocols, where required. Trained engineers and distributors are available for smooth validation protocol execution.

EMS assists with national regulatory compliance requirements
GxP Guidelines, HACCP, FDA 21 CFR Part 11, EU GMP Annex 11, and ISO 22000 food standards

Highlighted Features

checkmark One software platform for all Hanwell equipment.
checkmark Single or multi-user access for small, medium or large monitoring needs.
checkmark Collect and display data from multiple environmental applications.
checkmark Display quick overview of sites and/or sensor groups specified by individual users.
checkmark Access interactive graphs, tables and plan views for detailed data analysis.
checkmark System validation to organisation requirements with full supporting IQ & OQ protocols.
checkmark View real-time data 24/7.
checkmark Immediate system, email and SMS alarm notification to user-defined personnel.
checkmark Generate automated reports or access data immediately and easily via the system.
checkmark Access critical information on your local PC, via the company intranet or network and via the internet.
checkmark View and interact with data and settings from anywhere in the world using commercially available browser based formats.
Learn more about EMS
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Suitable Applications

The data loggers can be used for various applications within the life science and food & beverage industries.

Ellab Applications

Ellab provides a wide range of diverse products and solutions for most applications, all around the world.

See all applications

Suitable Accessories

Ellab offers a wide range of customizable fittings and essential accessories for our products. The items below are for use with this product:

Ellab Accessories

Ellab offers a wide range of customizable fittings and essential accessories for processes and studies within different industries.

See all Accessories

Downloads and Related Articles

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