HMEI Surface Wetness Measurement, Monitoring Products

Please click on any of the links below to go directly to the relevant on-line information of the companies and their products. Or contact the company at their email address.

Campbell Scientific (Canada) Corporation Canada dataloggers@campbellsci.ca	Leaf wetness sensors are classified as: - Surface contact types that measure the electrical resistance of a water film on the leaf surface, - Mechanical types that detect a change in sensor length or weight, or - Electrical resistance types that are applied to mock leaves and are designed to emulate periods of leaf wetness after rainfall, dew, or spray. Campbell Scientific Canada offers several surface wetness sensor options.
CAMPBELL SCIENTIFIC LTD. United Kingdom sales@campbellsci.co.uk	Campbell Scientific offers the 237 and 237F wetness sensing grids. The sensor is designed to emulate the size and surface of a leaf and works by measuring changes in the electrical resistance between the interlacing gold-plated fingers on the circuit board. Capable of detecting rainfall, dew or spray the sensor connects to any suitable data logger. The 237F is a flexible sensor of similar design but which is designed for attaching to uneven surfaces or plant stems.
Delta-T Devices Limited United Kingdom sales@delta-t.co.uk	Delta-T devices can offer a Surface Wetness Sensor for the detection of dew or rain which comes complete with ground spike and 2m standard cable length. This forms part of an extensive list of equipment for environmental and meteorological monitoring.
ENVIRONMENTAL MEASUREMENTS LTD. United Kingdom sales@emltd.net	Environmental Measurements offer three types of surface wetness probes - the SW120R for rain detection, the SW120D dew/condensation probe and the SW120F for frost detection. These are essentially 'On/Off' devices which are switched when signal output goes from 0V to 1V.
LOGOTRONIC GmbH Austria sales@logotronic.co.at	Logotronic supplies a big variety of measuring stations. Small ones, stationary or mobile up to synoptic weather stations. The stations are highly scalable to the user requirements due to the modular system architecture. One measuring station for meteorology, hydrology, water quality and soil investigation. Nearly all common sensors can be connected via measuring interface modules. All stations can use telemetry modules for telephone, GSM, radio or Internet data transfer.
Skye Instruments Ltd. United Kingdom skyemail@skyeinstruments.com	Skye manufactures a Leaf Wetness/Surface Wetness sensor which can be used with either the Skye DataHog datalogger or those from other manufacturers. Features are: Designed to detect surface moisture Sensitivity from fine mists to water droplets All units have three types of output to suit most logging and recording equipment Grid heavily gold-plated for corrosion resistance For more information visit: http://www.skyeinstruments.com/surface.htm
Sutron Corporation United States of America rmcquivey@sutron.com	Looking for the WORLD’S MOST RELIABLE, Field-Proven, Real-Time Monitoring System? Sutron Manufactures, Installs, & Supports The World’s Most Dependable Turn-Key Monitoring & Warning Systems: • Data Collection Platforms, Sensors & Data Processing Software • In-House Design & Engineering • Installed, Integrated & Supported by Our Own Staff • Data Delivered by Satellite, Secure Internet, Radio, Telephone • Certified for GOES, METEOSAT-MSG, INSAT, GMS, ARGOS/SCD, FY2 • Unlimited Options - Audio/Video, MODBUS, IRIDIUM, Web-Enabled... PORTABLE & PERMANENT DCPs - WMO Compliant • Automatic Weather • Automated Airport Weather Systems • Synoptic • Climate • Precipitation, Tipping Bucket • Agri-Met