nemi G+

Small, Wireless Sensor for Measuring Accelerations, Vibrations and Rotation Rates

nemi G+ not only measures and monitors accelerations and vibrations, but also rotation rates, rotation angles and magnetic fields in and around all three axes. With its integrated rechargeable battery, radio connection nemi Link 2400 and i4M's highly efficient radio technology, nemi G+ can be operated completely wirelessly for many hours. It is also suitable for permanent installations using its wide-range voltage input. Due to its robust and small design and easy mounting, nemi G+ works perfect in highly dynamic applications such as roller coasters, but also on rotating or moving components such as pitch bearings of wind turbines or gearboxes.

nemi G+

Technical details of nemi G+

Orbitdarstellung mit Icons des nemi G+

Key features

Small and lightweight design (32 x 32 x 23) mm, 30 grams

High-resolution, low-noise, capacitive MEMS acceleration / vibration sensor

Integrated accelerometer, gyroscope and magnetometer (3 axes each) and temperature sensor

Completely wireless with maximized battery life due to our radio technology nemi Link 2400

Transmission of live raw data or smart data pre-evaluated by edge computing

Weather resistant box on request



High-resolution and low-noise, triaxial, capacitive MEMS accelerometer; measuring range up to 8 g or up to 40 g; sampling rate up to 4 kHz per axis; signal resolution 20 bit

Icon IMU

IMU sensor module for measuring accelerations and rotation rates in and around all 3 axes; ACC up to 16 g; GYR up to 4000 °/s; signal resolution 16 bit

Icon Magnetometer

Triaxial magnetometer; measuring range up to 16 Gauss; signal resolution 16 bit

Icon Temperaturfühler

Internal temperature sensor

Icon nemi Link 2400

nemi Link 2400 - i4M's own robust and flexible radio technology in the 2.4 GHz frequency band; Range up to 140 m (in buildings); Range up to 350 m (urban area) ; max. sum sampling rate of 36 kHz at 24 bits per sample

Icon Laden per USB

Internal rechargeable battery with more than 10 hours runtime at a sampling rate of 4 kHz (all three axes active); runtime of several weeks possible depending on configuration

Icon USB Datenübertragung

Power supply / battery charging via micro USB

Icon Spannung 8,5-28V

Continuous operation with wide range voltage input 8.5 - 28 V DC

Compatible receiver modules
in the nemi Link 2400 radio network:

nemi Connect

nemi Log (+ cellular)

nemi EdgeBase

Use Cases

Ansicht einer Achterbahn zum Use Case "Online Monitoring zur Analyse des dynamischen Verhaltens von Achterbahnen"

Online condition monitoring for the analysis of the dynamic behavior of roller coasters

To enable continuous online condition monitoring, we installed a nemione measuring system on a roller coaster that provides reliable data with the help of three small wireless sensors (nemi G+ and nemi DAQ) and the gateway nemi EdgeBase.


Extreme demands on the radio link

Limited energy supply

Weather conditions

No wiring possible between vehicles

Enormous data volumes via cellular connection

Solution & Advantages

Easy and fast mounting due to small and lightweight measurement technology

Uncomplicated handling of wireless sensors

Reliable data through robust i4M radio technology

Frau auf Achterbahn mit Brustgurt zur Messung physischer Belastungen auf den menschlichen Körper in Fahrgeschäftemn

Detection of physical stresses on the human body in roller coasters

Using the acceleration sensor nemi G+ attached to a chest strap, we have determined the forces and accelerations that occur on the human body while riding roller coasters. With this knowledge, visitors with disabilities can also be offered an extended and improved use of roller coasters and attractions.


Safe measurement during active operation

Risk-free attachment to the body

High robustness against dynamic loads and weather influences

Solution & Advantages

Flexible assembly and disassembly

Uncomplicated handling thanks to completly wireless measurement technology

Longer measurement series because of long battery life

No suitable product found?

There are projects that have to start on a blank sheet of paper, because something new and unprecedented is to be created. This is how our nemione® products were created, which have become a series product in many iterations. i4M analyzes mechanical systems, determines relevant measurement variables and develops customized and highly integrated measurement technology to find the optimal solution for your individual challenge.

View i4M's individual solutions
Kontaktfoto von Lois Jacobs

Lois Jacobs
Sales i4M technologies

+49 157 34 10 59 28


Do you have questions about our nemione® products? Do you want to know whether our nemione® products are also suitable for your assets? Then please feel free to contact me by phone or e-mail.

Stephanie Paulus, M. Sc.

nemione® is a trademark of
i4M technologies GmbH

Foersterstr. 5
52072 Aachen

+49 157 34 10 59 30