Model: RBXGU
Inline ultrasonic micro-flow sensor measuring 1–100 mL/min with millisecond response, no moving parts and a biocompatible PEEK fluid path.
| Flow range | 1–100 mL/min (models up to 0–3000 mL/min) |
| Accuracy | ±1% of reading (>5 mL/min); resolution ±0.05 mL/min |
| Repeatability | ±0.1% FS |
| Temperature | Liquid 0–90°C; ambient 0–60°C |
The RBXGU is an inline ultrasonic micro-flow sensor for analytical, medical and dosing applications where flows are measured in millilitres per minute. Time-difference technology delivers 0.05 mL/min resolution with millisecond-level response, so pulsed spray and start-stop cycles are captured accurately.
A biocompatible PEEK fluid path with Viton seals and integrated circuitry make the RBXGU a compact, clog-free alternative to gear and turbine micro-flow instruments.
The RBXGU offers ±1% of reading (>5 mL/min), resolution ±0.05 mL/min accuracy, verified through our ISO 9001-managed factory calibration process.
The RBXGU is available for pipe sizes from NPT thread (PVC/silicone/PE/PUR tubing), supporting a wide range of industrial flows.
The RBXGU supports RS485, pulse, current/voltage, digital (NPN/PNP/push-pull), flow switch output for integration with your control system.
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Last updated: October 18, 2026
Contact our sales team for pricing, technical consultation, or a customized solution for your application.
Request a Quote Now| Output signal | RS485; pulse; current/voltage; digital (NPN/PNP/push-pull); flow switch |
| Power supply | 12–30 VDC, <20 mA |
| Connection | NPT thread, U-tube body |
Selection depends on fluid conductivity, pipe size, temperature, and accuracy needs. Electromagnetic meters suit conductive liquids, ultrasonic meters suit large pipes and clean liquids, and vortex meters handle steam, gas, and liquids. Contact R&B Instrument Inc. engineers for a recommendation.