Proteus EIDO Multi-Parameter Water Quality Sensors
Features
- Available in two sizes depending on the number of integrated sensors needed
- Built-in wiper cleans optical sensors prior to each measurement
- SDI-12 and RS-485 Modbus output for integration with data loggers & PLC's
- Expedited repair and warranty service
- Lifetime technical support
- More
The EIDO is a low cost, real-time sensing platform, specifically designed for the measurement of organic water quality parameters. Following the success of the award-winning Proteus, the EIDO has been specifically designed as a low-cost option for the measurement of organic parameters. The EIDO has been designed for its ease of use, reliable data and economical operation even in the toughest applications. Available in two sizes, the EIDO 30 provides turbidity, TSS, temperature and two fluorometers; while the EIDO 35 provides turbidity, TSS, temperature and up to four fluorometers.
BOD Parameter Specifications | |
Units | BOD mg/l |
Range | 0-2000 mg/l |
Resolution | 0.01 mg/l |
Accuracy | ±5 % of reading* |
Comments | Local site calibration can improve accuracy |
Coliform Counts Parameter Specifications | |
Units | CFU/100 m |
Range | >1 count/100ml |
Resolution | 1 count/100ml |
Accuracy | ±10 Coliforms* |
Comments | Local site calibration can improve accuracy. Can be used for faecal coliforms, E. coli or total coliforms |
COD Parameter Specifications | |
Units | COD mg/l |
Range | 0-4000 mg/l |
Resolution | 0.01 mg/l |
Accuracy | ±5 % of reading* |
Comments | Local site calibration can improve accuracy |
DOC Parameter Specifications | |
Units | DOC mg/l |
Range | 0 - 3000 mg/l |
Resolution | 0.01 mg/l |
Accuracy | ±5 % of reading* |
Comments | Local site calibration can improve accuracy |
TOC Parameter Specifications | |
Units | TOC mg/l |
Range | 0 - 3000 mg/l |
Resolution | 0.01 mg/l |
Accuracy | ±5 % of reading* |
Comments | Local site calibration can improve accuracy |
Temperature Parameter Specifications | |
Units | Water Temperature |
Range | -5 to 50°C |
Resolution | 0.01 |
Accuracy | ±0.1 |
Comments | Never needs calibration. |
Fluorometer Specifications | |
CDOM/fDOM | 0 to 2500 ppb |
Chlorophyll a - blue | 0 to 1000 ppb |
Chlorophyll b - red | 0 to 1000 ppb |
Crude oil | 0 to 1500 ppb |
Fluorescein dye | 0 to 1000 ppb |
Optical brighteners | 0 to 2500 ppb |
Phycocyanin (freshwater BGA) |
0 to 1000 ppb |
Phycoerythrin (marine BGA) |
0 to 1000 ppb |
Refined oil | 0 to 10,000 ppb |
Rhodamine dye | 0 to 1000 ppb |
Tryptophan | 0 to 2500 ppb |
Resolution | 6 digits with maximum of two decimals |
Accuracy | Linearity of 0.99R² (temperature compensated 0-50°C) Accuracy ±0.5 ppb |
Comments | Latest proFluor technology rated to 100m depth |
*after local calibration
General Specifications - EIDO 30 | |
Diameter | 76 mm (3.0”) |
Length | 483 mm (19”) |
Material | CPVC body and sensor guard |
Typical Weight | 2.27 kg (5.00 lbs) |
Number of Sensors | Up to 4 (2 fluorometers) |
General Specifications - EIDO 35 | |
Diameter | 89 mm (3.5”) |
Length | 483 mm (19") |
Material | CPVC body and sensor guard |
Typical Weight | 2.85 kg (6.28 lbs) |
Number of Sensors | Up to 6 (4 fluorometers) |
General Specifications | |
External Power | 5-15 vdc |
Operating Temperature | 0 to 50°C, non-freezing |
Calibrated Range | 0 to 30°C, non-freezing |
Depth Rating | 200 m |
Communications | USB, RS232, Modbus® RS485, SDI-12 as standard. Bluetooth® optional. |
Sample Rate | 1 Hz |
Data Memory | >1,000,000 logged readings |
Logging Rates | 1 second to 1 day |
Warranty | 2 years (All sensors) |
In The News
Climate Change and Microplastics: Monitoring Lake Champlain
Most people go to Lake Champlain for its exceptional views and thrilling boating, but it’s also home to a wide variety of interesting aquatic research projects. From studying microplastics to thermal dynamics of the lake, Timothy Mihuc, director of the Lake Champlain Research Institute (LCRI) at the State University of New York at Plattsburgh (SUNY Plattsburgh), has spent his career studying aquatic ecosystems. 
 
 As an aquatic biologist, he’s the main investigator on Lake Champlain’s research studies while also managing their grants, employees, and their hands-on buoy work. 
 
 Over the years, LCRI has received a number of environmental grants that aid in its monitoring research.
Read MoreCurrent Monitoring after the Francis Scott Key Bridge Collapse
On March 26th, according to The Baltimore Sun , a 984-foot, 112,000-ton Dali lost propulsion and collided with a support column of the Francis Scott Key Bridge, collapsing the structure. Soon after the event, search and rescue, salvage crews, and other emergency responders were mobilized after the collision. 
 
As salvage efforts progressed in early April, NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS) responded to a request for real-time tidal currents data and deployed a current monitoring buoy—CURBY (Currents Real-time BuoY)—into the Patapsco River north of the Francis Scott Key Bridge.
Read MoreSoundscapes of the Solar Eclipse: Citizen Science Supporting National Research
On April 8, 2024, millions of people around the world had their eyes glued to the sky to witness a historic cosmic event. The total solar eclipse captured the headlines and the minds of many who became eager to gaze at the heavens as the sky went dark for a few minutes. However, not everyone used their sense of sight during the eclipse, some were listening to the sounds of the natural world around them as the light faded from above. 
 
 The Eclipse Soundscape Project is a NASA-funded citizen science project that focuses on studying how the annular solar eclipse on October 14, 2023, and the April 8, 2024 total solar eclipse impacted life on Earth. 
 
 The project revisits an initiative from the 1930s that showed animals and insects are affected by solar eclipses.
Read More