Horiba U-53G Multiparameter Water Quality Meter with GPS
The HORIBA U-53G is the top of the U-50 Series: eleven simultaneous water quality measurements from a single submersible probe, a tungsten-lamp turbidity sensor, an integrated depth sensor, and built-in GPS that geotags every stored reading.
The tungsten-lamp turbidity source is the configuration called for by turbidity methods that specify white-light incandescent illumination, while GPS removes the need for a separate handheld unit or hand-written coordinates. Together they make the U-53G the right choice for programs that must document both a defensible turbidity value and a verifiable sample location.
Measured parameters
- pH
- ORP (redox potential)
- Dissolved oxygen (DO)
- Electrical conductivity
- Salinity
- Total dissolved solids (TDS)
- Seawater specific gravity
- Temperature
- Turbidity (tungsten lamp light source)
- Water depth
- GPS position
Cable lengths
- 2 m cable (part no. 3200158178) — surface water, flow cells, beaker readings
- 10 m cable (part no. 3200164504) — typical shallow monitoring wells
- 30 m cable (part no. 3200164505) — deep wells, reservoirs, full water-column profiling
Choose the length to match your deepest measuring point.
Applications
- Regulatory turbidity monitoring where a tungsten-lamp source is specified and coordinates must be logged
- Watershed, river basin and transect surveys with GPS-referenced sample points
- Lake, reservoir and estuary vertical profiling using the depth channel
- Dredging, sediment plume and construction stormwater monitoring
- Groundwater monitoring well sampling and low-flow purge stabilization
- Coastal and brackish water monitoring using the seawater and salinity channels
- Municipal and industrial wastewater and effluent characterization
- Long-term environmental trend monitoring and site characterization
Documentation
- U-50 Series specifications (PDF)
- U-50 Series instruction manual (PDF)
- U-50PC software instruction manual (PDF)
- U-50FC flow cell instruction manual (PDF)
Parts & accessories
Replacement pH, ORP and DO sensors, the #7801 U-53 turbidity cell, reference electrode tips, DO membrane caps, wiper rubbers, probe guards, O-ring sets, carrying cases, flow cells and calibration solutions are all stocked — see the Horiba Parts & Accessories collection.
Browse all HORIBA instruments.