At ACOWA, we specialize in building durable equipment to manage, monitor and move water. With more than 90 years of combined experience
in the water and wastewater industry, we have acquired the skills to complete projects successfully and at the agreed time and price.



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GEKKO - battery-powered data logger

GEKKO – battery-powered data logger is particularly flexible in use as it connects to many devices. E.g. it perfect for overflow registration.

ACOWA´s GEKKO - Battery-powered data logger

The GEKKO battery-powered data logger is used in water applications such as H2S detection, level measurement as well as overflow registration. It offers numerous benefits, due to its robust IP 67 industrial design and versatile capabilities. Below are the key advantages of using GEKKO.

Replaceable modules for future technology

Firstly, GEKKO’s communication modules are mounted on separate boards, allowing for easy adaptation to future communication technologies without replacing the entire data logger. Whether it’s 4G, 5G, or other emerging technologies, GEKKO can be upgraded to support the latest communication standards.

Image of GEKKO Data Logger

The GEKKO - battery-powered data logger is highly portable

Secondly, the GEKKO is compact and lightweight, making it highly portable. Its battery-powered operation eliminates the need for external power sources, allowing you to easily move and deploy the data logger in remote locations.

Furthermore, GEKKO has flexible power options. It can be powered by either 2 D-size lithium batteries, which can be inserted either directly into the unit or offered as an external battery pack. However, GEKKO also provides the flexibility for an external 12-30V DC power source, which enables the use of solar cells, wind turbines, water turbines, or similar options.

Future-Proof Communication with GEKKO

Thirdly, GEKKO has the capability to gather data and record signals of various kinds via external standard 4-20mA equipment. This versatility makes it ideal for applications such as H2S detection, measuring levels, temperature, and pH, as well as capturing stormflow patterns and precipitation data.

The GEKKO also empowers users to define customized logging and call intervals. Thereby optimizing its functionality for specific application needs. In addition, the system features an event-driven logging function, which allows for heightened logging and call frequency based on analog limits or digital inputs.

ACOWA focuses on an easy and versatile process of collecting data. Images shows a download icon
Image of Gekko Battery powever datalogger bundplade

Communication on GEKKO - battery-powered data logger

Fourthly, GEKKO has flexible communication capabilities. It supports RS485 MODBUS communication, allowing easy integration and data exchange with external devices and systems.

Additionally, it can communicate via standard MODBUS TCP/IP or SMS commands. The data logger is equipped with a 4G modem (2G, 3G, and 4G) or a Sigfox modem, providing reliable and flexible communication options for remote monitoring.

Easy connectivity to visualization platforms

Lastly, data generated by GEKKO can be effectively visualized through SCADA-systems, AcowaCore as well as other third-party software platforms. For easy setup simply connect via a USB cabel using the free configuration tool: AcowaZoo. Or alternatively connect wirelessly to AcowaCore.

Read more about the GEKKO

Last but not least, for more info about GEKKO in a country near you, go to our agents page and connect to: Agents with GEKKO

Additionally, for danish speaking people – feel free to visit

Image of AcowaCore / AcowaDash FROM ACOWA INSTRUMENTS


GEKKO has the following general specifications as outlined below:

(NOTE! GEKKO is not EX-classified and must not be installed in EX areas)

Dimensions L=186mm, W=156mm, H=60mm
Weight 620g without batteries
Wire connection 0.5–2,5 mm2
Vibration (sinusoidal) 10-500Hz, 1G
Free fall drop 30 cm
Enclosure class IP67
Power supply 12V DC – 30V DC
Batteries 2 x Lithium SAFT
Humidity Humidity 10% – 95% non-condensing air
Operating temperature -20°C to +50°C
Storage temperatur -20°C to +60°C
Functional height Max. 2000m above sea level
Start-up time total 20-120 sec. (depending on GSM network)
Output voltage 15V DC
Output current Max. 100mA
Tolerance +/- 20%
Number of analog mA inputs 4
Electrically insulated No
Measuring range 0/4–20mA
Input impedance Approx.100Ω
Measurement accuracy Better than 0,5% of FS
Signal range 0-24mA / 0–30V DC
Cable/signal length Max. 100m
Number of digital inputs 2
Electrically insulated No
Digital signal Low < 5V / < 1mA High > 12V / > 4mA
Analog signal measuring range 0–10V DC
Analog signal impedance Approx. 20KΩ
Measurement accuracy Better than 1% of FS
Signal range (min/max.) 0–30V DC
Cable/signal length Max. 100m
Item number Description
1772-2204000 GEKKO 4G.
1772-2204100 GEKKO SIGFOX.
UHR-13Ah Lithium SAFT 3,6V battery
1717-0B24-C884G Quad band antenna (2G, 3G, 4G) w angle connector
Sigfox-U 5 year SigFox subscription incl. creation on Sigfox back-end as well as invoice handling.

The GEKKO data logger is used in applications, such as:

  • Overflow registration
  • Hydrogen sulfide measurement
  • PH measurement
  • Pressure measurement
  • Level measurement in wells
  • Level measurement in streams and rivers
  • Level measurement in reservoirs and tanks
  • Collection of rainfall data
  • Groundwater monitoring

To see documentation – go to the Download Center

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