-
Overview
The HORIBA LAQUA U-51 is a professional field-ready multi-parameter water quality checker designed for environmental monitoring, groundwater investigations, wastewater treatment, aquaculture, and industrial water analysis. As part of the U-50 Series, the U-51 integrates multiple sensors into a single probe, enabling simultaneous measurement and display of up to 10 key water quality parameters in one test. Its rugged waterproof construction, automatic calibration, and large data storage capacity make it ideal for demanding field applications.
Key Features
- Simultaneous measurement of up to 10 water quality parameters
- Integrated multi-sensor probe design
- One-touch automatic calibration
- Real-time monitoring with Auto-Hold function
- USB connectivity for easy data transfer
- Large backlit LCD display
- Diagnostic functions for sensor status monitoring
- User-replaceable sensors
- Data storage for up to 10,000 records
- Waterproof construction for field use
- Measurement depth up to 30 m depending on configuration
Measured Parameters
- pH
- ORP (Oxidation Reduction Potential)
- Dissolved Oxygen (DO)
- Conductivity
- Salinity
- Total Dissolved Solids (TDS)
- Seawater Specific Gravity
- Temperature
The U-51 model focuses on core water quality parameters and does not include turbidity or GPS functions found in higher U-50 Series models.
-
HORIBA LAQUA U-52 Multi-Parameter Water Quality Checker
The HORIBA LAQUA U-52 is a portable multi-parameter water quality monitoring instrument designed for field measurement of rivers, lakes, groundwater, wastewater, aquaculture systems, and industrial water processes. As part of the U-50 Series, the U-52 simultaneously measures up to 10 water quality parameters using a single integrated sensor probe, providing accurate and reliable water quality analysis in demanding field environments.
Key Features
- Simultaneous measurement of up to 10 parameters
- Integrated multi-sensor probe design
- Built-in turbidity measurement (LED forward-scatter method)
- One-touch automatic calibration
- Real-time monitoring and Auto-Hold functionality
- Large backlit LCD display
- USB connectivity for data transfer
- Memory capacity for up to 10,000 records
- Waterproof and impact-resistant construction
- User-replaceable sensors
- Optional cable lengths of 2 m, 10 m, and 30 m
- Suitable for long-term environmental monitoring programs
Measured Parameters
- pH
- pH (mV)
- ORP (Oxidation Reduction Potential)
- Dissolved Oxygen (DO)
- Conductivity
- Salinity
- Total Dissolved Solids (TDS)
- Seawater Specific Gravity
- Temperature
- Turbidity (LED Forward 30° Transmission/Scattering Method)
-
HORIBA LAQUA U-52G Multi-Parameter Water Quality Checker with GPS
The HORIBA LAQUA U-52G is a portable multi-parameter water quality monitoring system designed for environmental, industrial, and research applications. As part of the U-50 Series, the U-52G provides simultaneous measurement of up to 11 water quality parameters, including turbidity and integrated GPS positioning. Its rugged waterproof construction, automatic calibration functions, and advanced data logging capabilities make it ideal for field monitoring of rivers, lakes, groundwater, wastewater, and aquaculture systems.
Key Features
- Simultaneous measurement of up to 11 water quality parameters
- Integrated GPS for location-referenced data collection
- Built-in turbidity measurement
- One-touch automatic calibration
- Large backlit LCD display
- Real-time monitoring and Auto-Hold functionality
- USB communication for data transfer
- Memory capacity for up to 10,000 records
- Waterproof and impact-resistant field design
- User-replaceable sensors
- Optional water depth measurement capability
- Suitable for long-term environmental monitoring programs
Measured Parameters
- pH
- pH (mV)
- ORP (Oxidation Reduction Potential)
- Dissolved Oxygen (DO)
- Conductivity
- Salinity
- Total Dissolved Solids (TDS)
- Seawater Specific Gravity
- Temperature
- Turbidity
- GPS Position Data
- Water Depth (optional)
-
HORIBA LAQUA U-54 Multi-Parameter Water Quality Checker
The HORIBA LAQUA U-54 is a professional multi-parameter water quality monitoring instrument designed for comprehensive field analysis of surface water, groundwater, wastewater, aquaculture systems, and industrial water processes. As part of the U-50 Series, the U-54 simultaneously measures up to 11 water quality parameters, including ISO 7027-compliant turbidity, providing reliable and accurate results in demanding environmental conditions. Its rugged waterproof construction, automatic calibration, and advanced data logging capabilities make it an ideal solution for environmental professionals and researchers.
Key Features
- Simultaneous measurement of up to 11 parameters
- Integrated multi-sensor probe with replaceable sensors
- ISO 7027-compliant turbidity measurement
- Automatic one-touch calibration
- Real-time monitoring and Auto-Hold function
- Large backlit LCD display
- USB communication for data transfer
- Stores up to 10,000 measurement records
- Waterproof and impact-resistant field design
- Optional water depth measurement capability
- User-replaceable sensors for simplified maintenance
Measured Parameters
- pH
- pH (mV)
- ORP (Oxidation Reduction Potential)
- Dissolved Oxygen (DO)
- Conductivity
- Salinity
- Total Dissolved Solids (TDS)
- Seawater Specific Gravity
- Temperature
- Turbidity (ISO 7027 Infrared Method)
- Water Depth (optional)
-
The HORIBA LAQUA U-54G is the most advanced model in the U-50 Series, designed for comprehensive environmental water quality monitoring. It combines simultaneous measurement of up to 11 water quality parameters, integrated GPS positioning, high-performance ISO 7027-compliant turbidity measurement, and optional water depth monitoring in a rugged field-ready instrument. The U-54G is ideal for environmental agencies, water utilities, research institutions, aquaculture operations, and industrial monitoring programs.
Key Features
- Simultaneous measurement and display of up to 11 parameters
- Integrated GPS for location-tagged data collection
- ISO 7027 compliant LED turbidity sensor
- Automatic one-touch calibration
- Real-time measurement and Auto-Hold function
- Large backlit LCD display
- USB connectivity for data transfer
- Stores up to 10,000 measurement records
- Field-replaceable sensors
- Rugged waterproof design for demanding environments
- Optional 10 m and 30 m depth measurement capability
- Chemical-resistant sensor construction for long service life
