From $129 — 80 GHz FMCW radar, ±2 mm accuracy, IP67. OEM/ODM since 2015.
Three reasons engineers pick JJY-YLD128SP over pricier Western brands.
VEGA, Endress+Hauser and Siemens list 80 GHz radar at $800–3,000+. We are the source factory: the same FMCW technology starts at $129, with full OEM/ODM support.
80 GHz gives a tight ±2.75° beam and only a 5 cm blind zone. It reads small tanks, still surfaces and close-up installations that 26 GHz radar and ultrasonic simply miss.
No moving parts, no wetted sensor — ideal for corrosive, viscous or foaming liquids. Output is HART 4-20 mA and RS-485 with Modbus; G2 thread, −40 °C ~ 75 °C.
Real hardware, real test bench, real installation guidance — not stock renders.



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OEM/ODM manufacturer since 2015
Everything required to drop it into a design.
| Model | JJY-YLD128SP |
|---|---|
| Frequency | 80 GHz FMCW radar |
| Measuring range | 0.05 – 40 m |
| Blind zone | 5 cm |
| Accuracy | ±2 mm (RS-485) / 0.1% (HART 4-20 mA) |
| Beam angle | ±2.75° (narrow) |
| Output | HART 4-20 mA / RS-485 |
| Protocol | Modbus / Text / HART (customizable) |
| Power | RS-485: 9–24 V · HART: 24 V |
| Protection | IP67, −40 °C ~ 75 °C |
| Connection | G2 thread · PC/Polycarbonate housing |
Get the outline drawing, wiring diagram and the full user manual for easy system integration.
Yes. The JJY-YLD128SP is a genuine 80 GHz FMCW radar level transmitter, and $129 is the starting price for the standard G2-thread, RS-485 / HART configuration. The same class from Western brands lists at $800–3,000+. Final price varies with measuring range, process connection and any certification you require — tell us your application and we quote exactly.
Yes. Because it is non-contact radar, there are no wetted moving parts — it suits water, fuels, oils, chemicals and mildly corrosive or foaming liquids. With IP67 and a −40 °C ~ 75 °C range it handles outdoor and industrial tanks. (For solids, heavy agitation or steam, tell us — we will confirm the right model.)
Yes. We support custom branding, packaging and output protocol (Modbus / Text / HART), and we accept sample orders. We have been an OEM/ODM manufacturer since 2015.
Tell us the tank, the medium and the quantity — we answer with a quotation, datasheet and lead time within two working days.
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