Water Quality Sondes

Solinst Eureka Water Quality Probes

Established in 2002, Solinst Eureka is a global leader in designing and manufacturing multiparameter water quality sondes. We offer the largest selection of sensor technologies for multiprobes in the industry.

Solinst Eureka Probes

Precision Environmental Intelligence

Solinst Eureka provides the industry's most comprehensive selection of sensor technologies, engineered for accuracy in the most demanding field conditions.

Advanced Sensor Suite

From common parameters to specialty PAR, Total Dissolved Gas, and high-precision fluorometers.

Rugged Versatility

Engineered for fresh, brackish, and marine environments with discrete sampling and logging options.

Real-Time Connectivity

Seamless telemetry integration and cloud-based software for instant access to critical data.

Global Leader in Water Quality

Established in 2002, setting the standard for multiparameter water monitoring across the globe.

20+ Years of Innovation
Largest Sensor Selection

Trimeter and Manta Probes

Customizable multiparameter sondes designed for fresh, brackish, and marine environments. Featuring anti-corrosive housings, robust marine bulkhead connectors, and LED diagnostic indicators. Each probe comes with an industry-leading 3 year warranty.

Since Solinst Eureka offers the largest selection of water quality sensor technologies in the industry, each probe may be customized for your specific application. Pick sensors to fully populate larger probes or add a battery pack to convert a probe to a self-powered logging device.

Trimeter
Compact Sonde

Trimeter

Solinst Eureka’s compact, low cost Trimeter is designed for projects that require the same high-quality features of a Manta+ probe, but fewer sensors.

Low Cost Compact High Quality
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Manta +20
Portable Sonde

Manta +20

The portable, yet rugged Manta+20 is well suited for site-to-site spot checking or profiling, in any type of water. Fits in a backpack too!

Portable Rugged Spot Checking
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Manta +25
Turbidity Optimized

Manta +25

Solinst Eureka’s compact Manta+25 is an excellent choice when your application calls for turbidity monitoring, but only a few additional sensors.

Turbidity Focus Compact
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Manta +30
Full Featured

Manta +30

Packs big 4, ORP, depth, and wipered turbidity – plus one ISE sensor, all into one small rugged probe.

Big 4 + ORP ISE Sensor Wipered
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Manta +35
Versatile Sonde

Manta +35

Accommodates up to 11 different sensors, making it extremely versatile for a wide variety of water quality monitoring applications.

11 Sensors Versatile
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Manta F35
Anti-Fouling

Manta F35

Features a copper nose cone, central wiper blade and more. Tired of cleaning fouled sensors? The F35 prevents data loss in harsh conditions.

Copper Nose Cone Central Wiper
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Manta +40
Maximum Capacity

Manta +40

Holds more sensors than any multi-parameter probe in the industry. It is ideal for long-term telemetry deployments.

Max Sensors Telemetry Ready
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Water Quality Probe Sensors

The highest quality sensor technology, for unsurpassed accuracy and reliability.

Temperature

Measured with a high-stability thermistor whose electrical resistance varies predictably with temperature for precise readings.

pH

Utilizes a glass bulb sensor and reference electrode filled with electrolyte for accurate acidity/alkalinity monitoring.

Turbidity

Indicates water clarity by measuring light passage; features integrated wipers for consistent data in high-solids environments.

Dissolved Oxygen

Optical RDO® sensors use blue light fluorescence on oxygen-permeable polymers for superior long-term stability.

Total Dissolved Gas

Unique TDG sensors that can be installed alongside DO, pH, and conductivity sensors on a single multiprobe.

Conductivity

Superior easy-to-clean flow-through design prevents fouling compared to recessed electrode designs.

Pressure (Depth)

Available in absolute or vented options, seamlessly integrated into any Manta or Trimeter multiprobe.

CO2 (Carbon Dioxide)

Industry-leading portable CO₂ sensors, compatible with the MantaPlus 40 for comprehensive profiling.

ISE Sensors

Flowing-junction reference electrodes provide superior stability and are easily rejuvenated in the field.

PAR

Directly connected to the sonde body without extra brackets; removable with a waterproof plug when not in use.

Rugged Field Devices and Apps

Flexible display and software options to make your field work easy and efficient.

Wireless mantaMobile

Use the mantaMobile Bluetooth device to operate any of Eureka’s multiprobes with Android or Apple devices.

mantaLink App

The official interface for iOS and Android, used with mantaMobile to operate any Solinst Eureka Multiprobes.

Ruggedized Tablets

iOS or Android devices in waterproof cases pre-configured for mantaMobile, or use your own device.

Manta Control Software

Windows software for PCs and Laptops to operate any Solinst Eureka multiprobe via a USB connection.

Customized Monitoring Solutions

Contact our technical experts to build the perfect water quality probe for your specific application requirements.

Authorized Dealer
Expert Support
Fast Delivery