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STELZNER® agricultural measurement systems

Measuring instruments for soil moisture and water monitoring, using sensors, tensiometers and data loggers

Wireless unit for remote monitoring

FFF – Field Humidity Wireless

The FFF offers wireless transmission of soil moisture and soil temperature measurement data via NB-IoT or LoRaWAN. Users of NB-IoT devices can view the collected measurement data in our web-based dashboard.
The radio unit works with a long-life battery and can therefore be operated for a long time without maintenance. Soil moisture is measured by connecting our volume sensors or tensiometers to the FFF. In addition, conductivity sensors can also be connected to the wireless unit.

When using our robust SMT50 or SMT100 volume sensors with the FFF, the system can also be installed underground and thus offers effective protection against vandalism and theft.

By obtaining measurement data in real time and monitoring it using the dashboard, the system is perfect for the management of municipal facilities as well as for agricultural operations and generally wherever continuous monitoring of measurement data plays a central role.

The system set up (installation) is simple. It only consists of connecting the sensors to the wireless unit and inserting the battery. The dashboard of the Holfuy web service provides a clear user interface for easily viewing the sent measurement data. Measuring intervals can be easily changed, automatic notifications can be set and solenoid valves can be switched at the click of a mouse.

We would be happy to advise you on the best combination of wireless units and sensors for your projects and applications.

Please refer E-sensors :
Bambach-Electronic tensiometers
Flow counter according to the application

Application examples open PDF: FFF-Application examples_en

ARTICLE AND PRIZES
Art.-Nr.
Article
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50161003 FFF, 4 analogue sensors Request Price
50161004 FFF, 4 digital sensors Request Price
50161007 FFF, 1 solenoid valve Request Price
50161008 FFF multi-transmitter with 2 wireless nodes Request Price
All FFF devices for LoRaWAN or NB-IoT, 3 sensors
Art.-Nr. Article Accessories Cart
501651 Volume sensor SMT 50 € 135,07
cable with open end
501606500 E-Sensoren ES-V 500 € 229,67
(3,0 V, 500 hPa)
50161002 eSIM annual fee Request Price
5016100 Visualisation dashboard Request Price
annual fee
5016061000 E-Sensoren ES-V 1000 € 229,67
(3,0 V, 1000 hPa)
501661 Volume sensor SMT 100 € 220,15
digital, cable with open end
501660 Volume sensor SMT 100 € 226,10
0 to 3 V analoge, cable with open end
502200 Solenoid valve Request Price
50168010 Conductivity module Request Price
10 mS/cm
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TECHNICAL DATA
  Wireless unit:
Power supply: 3.6 V lithium battery, type LS33600 
with 17 Ah capacity
Power consumption: < 3.5 µA in sleep mode
    80 mA LoRa, 500 mA NB-IoT
during transmissions
Battery life: at measuring interval of 4 hours
    > 5 years is possible
Measurement interval: ≥ 30 min to 4 hours, adjustable
Degree of protection: IP68
Dimensions: 140 x 97 x 97 mm
Weight 190 g without battery
Operating temperature: -40 °C to +80 °C
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