Horiba U-50 Series Replacement Sensor Probe with Cable Assembly
Replacement sensor probe and cable assembly for the HORIBA U-50 Series multiparameter water quality meters. This is the probe only, supplied without a control unit — so you can replace a damaged or worn probe, change cable length, or run a second probe without buying a complete meter.
Each assembly ships with the probe guard and conductivity cell already fitted. It connects directly to an existing U-50 Series control unit, so a swap takes minutes in the field and gets a downed instrument back into service the same day.
What's included
- Sensor probe with integrated cable assembly
- Sensor probe guard
- Conductivity cell
- Water depth sensor — U-52G and U-53/U-53G assemblies only
Choosing the right probe
Match the assembly to your control unit model, then pick the cable length for your deepest measuring point: 2 m for surface water, flow cells and beaker work, 10 m for typical shallow monitoring wells, 30 m for deep wells, reservoirs and full water-column profiling. The U-53 and U-53G share a single probe assembly.
Part numbers
- U-51 — 2 m: 3200237465 | 10 m: 3200237464
- U-52 — 2 m: 3200237467 | 10 m: 3200237466 | 30 m: 3200237468 (available on request — contact us for pricing)
- U-52G — 2 m: 3200237470 | 10 m: 3200237469 | 30 m: 3200237471
- U-53 / U-53G — 2 m: 3200237473 | 10 m: 3200237472 | 30 m: 3200237474
Applications
- Replacing a probe damaged by impact, abrasion or cable failure
- Extending reach by moving from a 2 m to a 10 m or 30 m cable
- Keeping a spare probe on the shelf to avoid downtime during a sampling event
- Running a dedicated probe per site to reduce cross-contamination risk
- Restoring a U-50 Series meter whose control unit is still serviceable
Documentation
- U-50 Series specifications (PDF)
- U-50 Series instruction manual (PDF)
- U-50FC flow cell instruction manual (PDF)
Related items
Individual replacement sensors, turbidity cells, membrane caps, probe guards and O-rings are in the Horiba Parts & Accessories collection. Complete meters and control units are in the HORIBA collection.