Compact MS (CMS)
Multi-sensor water quality sonde for rivers, lakes, and coastal monitoring
- Up to 12 sensors
- SDI-12 / RS-232 / RS-485 / Modbus
- Depth rated to 100 m
- Internal data logger
Water Quality Monitoring Products
Sensors, sondes, displays, and accessories for environmental, industrial, and research applications
Compact DS (CDS)
Depth-optimized multiprobe for profiling and long-term deployment
- Designed for deep profiling
- Multiple parameter options
- Titanium housing
- Low power consumption
TDG-3
Total dissolved gas pressure sensor for fish hatchery and dam monitoring
- Measures total dissolved gas %
- Temperature compensated
- SDI-12 output
- Stainless steel housing
TriOS NICO®
UV-Vis nitrate sensor for rivers, groundwater, and wastewater
- No reagents required
- Path lengths: 1–35 mm
- SDI-12 / Modbus RTU
- IP68 rated
TriOS NICO® Plus
Enhanced NICO with turbidity compensation and extended path lengths
- Turbidity compensation
- Path lengths: 1–50 mm
- SDI-12 / Modbus RTU
- IP68 rated
TriOS OPUS®
Full spectrum UV-Vis sensor for multi-parameter water quality
- Measures NO3, DOC, SAC254, turbidity
- No reagents required
- IP68 rated
- SDI-12 / Modbus RTU
NX10-V3
Universal handheld display for Hydrolab and compatible sondes
- 7" color touchscreen
- Bluetooth & USB
- IP67 rated
- Internal data logger
NX10-R
Rugged tablet display for field data collection
- Ruggedized tablet form
- GPS integrated
- Bluetooth
- Android OS
NX8X
Compact handheld for multiprobe readout and programming
- Compact handheld
- USB interface
- Hydrolab compatible
- Data logging
SVR4A
Field-ready datalogger and display unit
- 4-channel SDI-12
- LCD display
- Solar compatible
- Modbus RTU
EXO® Accessories & Rebuild
YSI EXO sonde rebuild, repair, and accessory solutions
- Sensor rebuilds
- E-Hub connectivity
- Crown guards & cables
- EXO2/3 bail assemblies
E-Hub V2
Bluetooth field interface for YSI EXO sondes
- Wireless Bluetooth
- KOR software compatible
- Weatherproof
- USB charging
EXO BT V2
Bluetooth communication module for EXO sondes
- Wireless data transfer
- EXO2/3 compatible
- iOS & Android
- Compact design
LDM Antifouling Module
Copper-ion antifouling system for optical sensors
- SDI-12 compatible
- Extends sensor life
- Adjustable timing
- Low power
AT SDI Temp. Sensor
High-accuracy SDI-12 temperature sensor
- SDI-12 output
- High accuracy ±0.1°C
- Stainless steel
- Wide temp range
Thermometer (NIST)
NIST-traceable reference thermometer for calibration
- NIST traceable
- Calibration standard
- High precision
- Certificate included
Velocity Radar
Non-contact surface velocity radar for open channel flow
- Non-contact measurement
- Radar technology
- No moving parts
- RS-485 / SDI-12
Optical DO Meter
Portable dissolved oxygen meter with optical sensor
- Optical luminescence DO
- No membrane changes
- ATC built-in
- Data logging
Nitrate Probe Configurator
Interactive tool to configure your TriOS NICO or OPUS system
- 6-step guided wizard
- Complete part numbers
- Print or submit quote
- Accessories included
Need Repair or Service?
HydroTech ZS Consulting services and repairs all brands we sell — Hydrolab, YSI EXO, In-Situ, TriOS, OTT Hydromet, and more.