iMETOS 3.3
A complete solution for environmental monitoring, disease models, water management and more.
iMETOS 3.3 is a durable and flexible data logger for all climatic conditions, powered by rechargeable battery and a solar panel. It is versatile, with the possibility to configure and connect many different sensors – over 600 sensors to choose from,






ABOUT iMETOS 3.3
The data logger has a built-in UMTS/CDMA modem for direct communication with the FieldClimate platform, and can handle up to 600 sensors through the intelligent sensor bus system. The system is extremely reliable due to non-volatile internal memory and can store up to 8 MB of logged data (ca. 1 month).
Additionally, you can connect Pessl Instruments proprietary radio network (for technical information see page 60) and up to 16 wireless sensor nodes within a farm, research block, golf course, park, etc.
The iMETOS can also send SMS Alarms (user-defined via Internet) to alert you in cases od frost, strong rain, high temperature and more.
Data is regularly uploaded to FieldClimate platform where you can access it from any place at any time in real-time. Along with accessing the historical data and daily evapotranspiration values, you can also take advantage of decision support solutions like localised Weather Forecast, Disease Models and Irrigation Management.
MAIN SENSOR VARIATIONS



The iMETOS 3.3 Series comes in the following main sensor variations:
- iMETOS IMT200: Air Temperature and Relative Humidity sensor, Rain Gauge, Leaf Wetness sensor and Sensors for Disease models
- iMETOS IMT280-USW: Rain Gauge and all the sensors for Evapotranspiration calculation: Air Temperature and Relative Humidity, Global Radiation and Ultrasonic Wind
- iMETOS IMT300-USW: Sensors for Evapotranspiration and Disease Models calculation: Air Temperature and Relative Humidity, Rain Gauge, Global Radiation, Ultrasonic Wind and Leaf Wetness
TECHNICAL SPECIFICATIONS
Sensors layout | 1 wind speed, 1 leaf wetness, 1 rain gauge, 1 water-meter (reed), 2 hygroclips (air temperature and relative humidity) 5 digital inputs: automatic sensor recognition, supporting sensor chains (max. 600 sensors) |
Extension connector | Radio access point or Sentek Drill & Drop or ultrasonic wind sensor or two extra chain connectors – Pessl Instruments bus cable nodes |
Memory | 8 MB flash memory |
Internet connectivity | 2G, 3G, 4G (LTE class 1, LTE class M) |
Alert | SMS, user configurable via website |
Dimensions without sensors | 41 cm L x 13 cm W x 7 cm H |
Weight without sensors | 2.2 kg |
Measuring interval | 5 minutes (by default) |
Logging interval | 10-120 min (user selectable) |
Transmission frequency | User selectable |
Battery | 6V, 4.5AH, Operating range: -35 °C to 80 °C |
Solar panel | Dimensions: 13.5 x 13.5 cm, 2 Watt solar panel |
iMETOS 3.3 base unit (no sensors included), internet based logger, battery 4.5Ah, solar panel, UMTS based, logger, mounting brackets |

iMETOS 3.3 short manual
EXTEND YOUR iMETOS 3.3 WITH RADIONODES
iMETOS RadioNode is a small, wireless, battery powered datalogger for in-field measurement of soil moisture, temperatures, rain, flow rate, leaf wetness, relative humidity and other parameters.
iMETOS RadioNode sends all sensor readings in real time through an interactive star topology network back to our base station.
From the base station, the data is uploaded to the web via cellular network (GPRS, UMTS, WiFi).
GOT A QUESTION? ASK THE EXPERT!*

Product manager, Weather forecast & Hardware