Dendrometers are sensors for continuous measurement of plant growth (changes of the plant diameter). The dendrometer allows us to record the plant parameters using the same time interval as environmental parameters. The data allows the direct assignment of plant responses and stress to environmental influences. Dendrometers are a cost-effective and useful tool for ecophysiological studies.
Necessary Interface to connect this sensor with iMETOS: 600170 / 900205.
The Pessl Instruments barometric sensor measures the “absolute air pressure” of the atmosphere on site. It is designed for application in the field of environmental protection, where high accuracy, quick response, long-term stability and reliability are required. The instrument is suited for indoor and outdoor use. A tempered piezoceramic sensor for absolute pressure is used, characterized by its thermal and mechanical stability.
Photosynthetically Active Radiation (PAR) is typically measured as Photosynthetic Photon Flux Density (PPFD), which has units of quanta (photons) per unit of time per unit of surface. The units most commonly used are micromoles of quanta per second per square meter (μmol s-1 m-2). Plant scientists, horticulturists, ecologists, and other environmental scientists use MD507D Quantum Sensors to accurately measure this variable.
The IM506D Pyranometer is designed for field measurements of global solar radiation in agricultural, meteorological and solar energy studies. In clear, unobstructed daylight, the Pessl Instruments pyranometer has favourable results compared to the first class thermopile-type pyranometers, but is priced at just a fraction of the cost.
Ultrasonic snow depth sensor is used for non-contact measurements of snow depth and river levels in extreme weather conditions. The sensor is characterized by its high level of operating reliability, low energy consumption and ease of use in the field.
To connect Snow Depth Sensor to the motherboard, you will need MOD BUS interface.
The EC500PH EC & pH Interface box is a measuring device with display in IP65 Box to be integrated into any iMETOS sensor chain interface for continuous EC & pH measurements in water. It is compatible with the majority of industry standard EC & pH sensors. The actual reading can be seen on the display. With the built in calibration mode, all sensor readings can be calibrated and checked from time to time.
Connection possibilities:
– 1 EC Sensor (Part.no. EC501)
– 1 pH Sensor (Part.no. PH501)
The conductivity sensor provides a complete self contained measurement. The sensor utilizes a reliable and robust sensor for conductivity measurement and a thermistor for temperature measurement. The sensor is ideal for hydrographical and environmental water monitoring, in agriculture and industrial applications. The durable design ensures suitability for the harshest environment applications.
Necessary Interface to connect this sensor with iMETOS: 600025 / 900029 Interface box with display.
The pH sensor is a reliable and cost-effective sensor for measuring the pH value of various aqueous solutions. The pH scale covers values between 0 and 14.
Acids have pH values between 0 and 6; caustic solutions have pH values between 8 and 14. Value 7 is neutral.
Necessary Interface to connect this sensor with iMETOS: 600025 / 900029 Interface box with display.
Simple and robust design makes pressure switch suitable for use with compressed air, hydraulic oil, oil emulsions and water. Detection threshold is 1 bar and switch off is at 0.5 bar (other values on demand). The main purpose of this sensor is to control/check the performance of the irrigation system.
These interfaces support most of the water meters used in irrigation with a pulse output.
Applications: Irrigation management, irrigation consulting, smart irrigation, irrigation tractability and bookkeeping, alarms, and supervision. Used widely in open field crops, hydroponics, and green house.
This sensor enables continuous monitoring of the pressure in irrigation pipes (main pipe or sector pipes) and it measures up to 50 bar, so it can be used in all types of irrigation systems (drip irrigation, sprinkler, hydroponics …). Technical specification of the full scale and resolution can be changed in the benefit of the user.
Applications: Irrigation monitoring and supervision, identification of pressure loss in the installation.
The PI54-D soil moisture sensor has a larger volume of influence. It determines volumetric water content (VWC) by measuring the dielectric constant of the soil using capacitance technology and soil temperature. It is 10 cm long and thus measures 1 liter of soil, while high frequency minimizes salinity and textural effects which makes PI54-D accurate in most soils.
Necessary Interface to connect this sensor with iMETOS: 600069 / 900052, 600068 / 900051, 600167 / 900057 or 900173, 900174, 900175.
The Aquacheck sub-surface soil moisture probe offers capacitance based soil moisture and temperature measurements along the vertical soil profile. Different configurations are available with 6, 8 or 12 sensors for a probe length variable from 600 to 1200 mm.
Necessary Interface to connect this sensor with iMETOS: 600150/900105.|
Sentek Drill & Drop probe provides the user with great flexibility for precision monitoring of temperature, water and salinity (Triscan) at multiple depths in a soil profile. Available in five lengths: 10 cm, 30 cm, 60 cm, 90 cm and 120 cm with sensors fixed at every 10 cm increment.
Necessary Interface to connect this sensor with iMETOS: 600150/900105.
The Watermark Sensor consists of two concentric electrodes buried in a special reference matrix material that is held in place by a synthetic membrane. The matrix material has been selected to reflect the maximum change of electrical resistance over the growth range of crop production, as well as to neutralize the effect of soil salinity. In operation, soil moisture is constantly being absorbed or released and the electrical resistance between the electrodes changes. This resistance is read and logged by the weather station.
The sensor is manufactured from non-corrosive materials and lasts up to three years.
Necessary Interface to connect this sensor with iMETOS: 600068 / 900051, 600167 / 900057, 900174, 900175.
The instrument measures soil water tension (or suction). This value represents the energy a plant’s root system uses to draw water from the soil. Understanding soil moisture dynamics helps the user make informed irrigation scheduling decisions, resulting in improved yield quantity and quality while reducing water, fertilizer, labour and energy costs. Available in different lengths: 15 cm, 30 cm, 45 cm, 60 cm and 90 cm.
Necessary Interface to connect this sensor with iMETOS: 600069 / 900052, 600068 / 900051, 600167 / 900057 or 900173, 900174, 900175.
The mechanic consists of a magnet, which moves past a reed switch and opens or closes the circuit. The double spoon tips left or right and does not lose any water due to a very fast switching mechanics. The resolution with a surface of 200 cm2 is 0.2 mm, while the resolution with the 80 cm2 is 0.5 mm. Heating for rain gauge can also be included.
Protect your rain gauge from bird entry with the use of the green crown with bird spikes.
The leaf wetness sensor works by measuring the conductivity on a filter paper, which is held between two stainless steel electrodes in a transparent holder. The use of transparent Lucite plastic as a holder reduces the warming up of the sensor when it is exposed to direct sunlight.
IM522CD is a highly accurate leaf temperature sensor. It measures the radiated temperature around the surface of a leaf or a canopy.
The infrared temperature sensor infers the temperature from a portion of thermal radiation (blackbody radiation) emitted by the object being measured. It is a non-contact temperature sensor. By measuring the amount of infrared energy emitted by the object and its emissivity, the object‘s temperature can be determined. Main use: canopy or leaf temperature measurements.
The Soil Temperature Sensor is a PT1000 in a waterproof stainless steel housing. The sensor output is a duty-cycle signal.
SAR19/SAR19M provide soil temperature measurement from several centimeters to 15-meter deep by using the Pessl Instruments sensor BUS. The distance between the sensors can be chosen according the application, but only up to 10 sensors can be attached to one sensor chain.
WMTEMP is a soil temperature sensor.
Necessary Interface to connect this sensor with iMETOS: ECH871EXT, ECH874EXT or ECH871INT, ECH874INT or RFRN09, RFRN12 or WM-BUS.
The multiple-temperature probe is a thermometer, designed for making measurements in extremely harsh conditions like the temperature of waste on disposal sites, and chipped wood in storage rooms.
Measures relative humidity and temperature with outstanding accuracy and repeatability. It has an integrated data acquisition and calibration history. Dew point, VPD and delta T calculations available.
Measures air temperature and relative humidity with the additional calculation of virtual sensors like dew point, VPD and delta T. The sensor is used for low power consuming applications on μMETOS CLIMA (LoRaWAN®, NB-IoT).
Application: when long distances up to 15 m from the main station are required i.e. in greenhouses in/out when two or more sensors are needed.
Measures air temperature and relative humidity and is used for low power consuming applications on μMETOS CLIMA (LoRaWAN®, NB-IoT).
I2C Bus Considerations: I2C Bus is sensitive to electromagnetic waves and can be distorted under certain conditions. On the contrary, Hygroclip is less sensitive.
Recommended cable length: no longer than 1 m.
Two highly reliable and tested PT1000 are built in a waterproof housing. One of them is covered with cotton tissue and wetted with water.