
Water Quality Sondes
Solinst Eureka
2113 Wells Branch Pkwy, Suite 4400
Austin, TX, USA
78728
Tel: +1 512-302-4333
Fax: +1 512-251-6842
email: [email protected]
Water Quality Probes
Solinst Eureka, a global leader in the design and manufacture of multiparameter water quality sondes.
Solinst Field Services
Safeguard your project’s success and mitigate any potential for downtime or additional costs.
Water Quality Sondes for Every Application
Trimeter and Manta Probes are multi-parameter sondes for monitoring water quality in fresh, brackish and marine waters. All sondes may be used for discrete sampling, profiling, as self-powered loggers, or connected to telemetry stations for continuous real-time monitoring, with water quality data accessible via cloud-based software. Our sondes communicate RS-232, SDI-12 or Modbus, for flexibility in connecting to a variety of different data loggers and PLC’s.
All Trimeter and Manta probes feature anti-corrosive housings and sensors, robust marine bulkhead connectors, and anti-fouling options. LED status indicators on each sonde provide important diagnostic information. Each probe includes an industry-leading 3 year warranty.
Operate your Trimeter and Manta probes with a variety of display options, via a direct or Bluetooth connection. Intuitive control software, available for Windows, iOS and Android is included at no additional cost with every probe.

Solinst Eureka Multi-parameter Sondes
Manta Series Water Quality Probes
Solinst Eureka offers the largest selection of water quality sensor technologies in the industry. So in addition to standard configurations, each probe may be customized for your specific application. Pick sensors of your choice to fully populate larger probes, or add a battery pack to convert a probe to a logging device.
Manta Trimeter Water Quality Probe
The Trimeter holds any one sensor* from the Sensor Parameters list, Plus temperature and depth sensors (both are optional). For example, a Trimeter configuration could be turbidity, temperature, and depth. Another example could be DO and temperature.
EasyProbe: Water Quality Sondes
The EasyProbe, by Solinst Eureka, is a high-performance, cost-effective water quality monitor. It's ideal for spot-checking, remote telemetry, education, research, aquaculture, and more. The EasyProbe20 includes sensors for temperature, dissolved oxygen, conductivity, and pH, while the EasyProbe30 adds a turbidity sensor. Eureka multiprobes are known for their reliability, with a three-year warranty covering all sensors, and have the lowest maintenance costs in the industry.
Related Products
Water Level, Temperature & Conductivity Datalogging
The Levelogger 5 LTC measures and logs water level fluctuations, temperature and conductivity. It is programmed to record at intervals as often as 2 seconds. It includes an 8-year battery, memory for 100,000 sets of readings, and comes in 6 pressure ranges. A PFAS-free coating (inside and out) provides superior corrosion and abrasion resistance.
TLC Meter – Measure Accurate Temperature, Level & Conductivity
A TLC Meter provides accurate, stable temperature and conductivity measurements, displayed on a convenient LCD display for easy reading. Static water level and depth of readings are read off Solinst flat tape, which is precisely laser-marked every mm or 1/100 ft. Tape lengths are available to 300 m (1000 ft).