| Axinum_Innovations_&_Technologies Manufacture of Siphoning Rain Gauges and Data Loggers |
| B__K__Consimpex_Meteorological_Systems Satellite remote sensing & metereological system integrators in India. |
| Belfort_Instruments Offer a variety of weather instruments for the measurement of Wind, Precipitation, Temperature, Humidity, Pressure, and Visibility. |
| BOLTEK A leader in affordable thunderstorm tracking technology and Lightning Detection Systems. |
| Campbell_Scientific_Ltd_ Professional weather monitoring products, including a full line of automated, research-grade weather stations. |
| Casella_CEL Manufacturer and supplier of meteorological equipment, weather stations, rain gauges, solar equipment and wind speed and direction. |
| Climatronics_Corp_ Meteorological systems for ambient surface and upper air weather stations and networks. Offering sensors for wind, temperature, humidity, rainfall, pressure, solar, ice, clouds and visibility. |
| Coastal_Environmental_Systems Coastal Environmental designs and manufactures weather stations, meteorological, environmental monitoring instrumentation, and data acquisition systems. |
| Columbia_Weather_Systems Makers of the Capricorn weather stations. Systems include wind speed and direction, temperature, barometric pressure, humidity, rainfall, leaf wetness, solar radiation and soil moisture. |
| Comptus_Inc_ Manufacturer of meterological instruments for measuring wind, rain, snow and other weather elements. |
| Corr-Tek_Idrometria Environmental Monitoring: Products for Sampling and Monitoring Water |
| Davis_Instruments_Corp_ Weather instrumentation for amateur and commercial boaters, farmers, meteorologists, hobbyists. Introductory Flash option. |
| Diplex_Instruments Manufacture, import and distribute meteorological and scientific instruments. Specialist in thermometers. |
| DWC_(Danish_Wind_Controller_A/S) Rugged wind sensors for critical environmental conditions. |
| Dynalab Manufacturer of Meteorological sensors and Automatic Weather stations |
| Dynamax,_Inc_ Provides instruments and sensors for plant, water, environment, and hydrology. |
| E+E_Elektronik Humidity and temperature transmitters, sensors, and data loggers that can be used for meteorology. |
| ELBW_Technology_SA, Designer and manufacturer of no moving parts Meteorological sensors |
| ELE_International Range of meteorological testing and monitoring equipment. |
| Enercorp_Instruments_Ltd A Manufacturer of Pressure, Temperature, and Humidity instrumentation. |
| Environdata Design, manufacture, and sale of weather stations and sensors. |
| EnviroTech_Sensors Specialize in the design, and manufacture of sensors used in environmental and industrial settings. |
| Fairmount_Weather_Systems Manufacturer of Meteorological & Hydrological Instruments. |
| Fidelity_Technologies_Corp_ Line of high-precision meteorological products and systems. |
| Fischer Manufactures measuring and recording instruments for meteorology and indoor climate. |
| FT_Technologies_Ltd Manufacturers of compact, rugged, low power ultrasonic wind sensors. |
| Gematronik_Weather_Radar_Systems Developer and manufacturer of doppler weather radar systems and weather data processing software. |
| GPSE Provides Data Logging and Weather Station solutions to the scientific, agriculture, and construction industries. |
| GRAW_Radiosondes Develops and manufactures GPS-based radiosonde-systems for upper-air measurements |
| High_Sierra_Electronics Meteorological & Hydrological Sensors & Gauges, including warning & response products and services. |
| Hovemere_Ltd Scientific instrument company specialising in Optical and Electronic Measurement Systems, for use in Research Applications. |
| Hukseflux_Thermal_Sensors For measurement of heat flux, thermal conductivity, thermal gradients and transfer coefficients, and particularly surface energy balance measurements in meteorology. |
| IAV_Engineering Manufacturer of the patented FlowCapt snowdrift monitoring solutions. |
| Info-Electronics_Systems_Inc_ Supplies state-of-the-art meteorological equipment and weather briefing/forecasting systems. |
| Instromet_Ltd Instromet Ltd. - Manufactures wind sensors |
| Inteltronics_Instrumentation Supplier of Meteorological Instrumentation in South Africa and Africa. |
| IRDAM_SA, Manufacturer of digital - no moving parts - meteorological instruments and sensor systems. |
| Jarek_Manufacturing_Limited Rain Gauges, tipping bucket type |
| Kipp_&_Zonen_Corp_ A manufacture of environmental monitoring instrumentation, ISO and WMO class meteorological and solar radiation sensors and accessories. |
| Koshin_Denki International manufacturer of individual sensors and weather systems, based in Japan. |
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Sensors Whatever parameter you need to monitor - accurate sensors and reliable data transmission are absolutely essential. 
Sensors [300KB] Download our comprehensive sensor`s survey here. 
Adcon Telemetry provides a wide range of highly accurate sensors to measure weather, soil and water conditions. All sensors can be attached to any Adcon RTU and do not require additional power supply. Sensors range from simple Watermarks to highly sophisticated multi-level soil moisture probes and a state-of-the-art salinity probe. Development of the A506 SDI-12 adapter interface has opened up the world of digital SDI-12 sensors for Adcon RTUs. This makes a wide range of sensors available, particularly in the environmental sector, from Vaisala's WXT510 All-In-One weather sensor to multi-parameter probes for water quality monitoring. Our sensors are developed together with world leaders in sensor technology, the best in their fields: Vaisala, Finland, supplies a low-power version of their excellent air temperature and humidity probe, so does Keller of Switzerland, adapting their top-notch pressure transducers to our low power requirements. Our pyranometers feature sensor elements from Kipp & Zonen, The Netherlands, leading manufacture of highly accurate radiation instruments - and there are many more! But they all live to the motto: Accurate, long term stability, excellent value! Technical details for the interested reader All applications supplied by Adcon have one characteristic in common: radio and sensors are permanently and directly exposed to the elements. They are required to operate reliably and accurately at 40 degrees in the shade as well as in arctic conditions. And are still expected to require little or now maintenance and to maintain their accuracy for many years. This poses quite a challenge for a sensor. What adds to it is the fact that Adcon sensors must operate with very little power, supplied by the RTU's internal battery. Therefore a sensor needs to match the following criteria in order to be selected by our R&D team: Environmental ruggedness by default all sensors need to work in an extended temperature range, going down to -30°C. (When you look at some of our sensors - like some rain gauges or water pressure sensors - please bear in mind that water freezes at 0° - so monitoring water levels at -30°C might be difficult. At least on planet Earth...) Low operating voltage most Adcon RTU's operate with an internal power pack supplying 5.5 - 7.2V. Since the same voltage is fed to the sensors attached, these need to be capable of operating reliably with such low voltages. Output signal of 0 - 2.5V Sensors with 4-20mA or 0-10V output signals usually require operating voltages of 12 - 24V, which would in turn make large batteries and huge solar panels necessary. We have therefore chosen to go for 0-2.5V signals for most RTU's (except A740 addNODE), since these can be fed with 6.2V from our integrated battery packs Low operating currents Hand in hand with the low operating voltage our sensors also need to reliable operate with very low current consumption, typically ranging from 3 to 20mA. We recommend to not attach higher loads than 50mA to an A723 addIT respectively 100mA to RTU's of the A733 family. Settling time of less than 2 seconds in order to achieve maximum power savings an RTU will completely shut off power supply to the sensors attached after a reading was taken. It is therefore crucial that all sensors require little or now warm-up time after power-up. All our sensors therefore feature extremely short settling times. (exceptions might occur with some water quality sensors, which require heating prior to taking a reading) SDI-12: the name is an acronym for "Serial Data Interface with 1.200 baud". This standard communications protocol was developed particularly to interface battery powered recording devices with micro-processor based sensors designed for environmental monitoring. Unlike RS-232/RS-485 devices which usually require proprietary drivers for communication, the SDI-12 protocol ensures compatibility between all sensors and loggers featuring such an interface. If you want to learn more about SDI-12 visit the the website of the SDI-12 Support Group. 
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