A ready-to-measure 80 GHz radar level sensor kit covering the full 76–81 GHz band, for non-contact distance and liquid or solid level measurement in tanks, silos, sumps, wells and open channels. Each kit ships with the radar board, its antenna, a USB-to-TTL serial adapter with Dupont wires, and the configuration GUI, so you can mount it over a tank and read the level the same day. It is a development kit for engineers and integrators, not a finished level transmitter.
Choose a version
| 20-meter kit | 60-meter kit | |
|---|---|---|
| Antenna | PCB patch antenna (9 dBi) in a threaded lens radome | Waveguide horn with PTFE lens |
| Range | 15 meters (49 ft) typical, 20 meters (66 ft) standard; up to 30 meters (98 ft) with the lens | Up to 60 meters (197 ft) |
| Accuracy (measured) | ±2 mm | ±4 mm at any distance |
| Blind zone | 6 cm (2.4 in) | 6 cm (2.4 in) |
| Bare-board beam (−3 dB) | 100° × 80° before the lens | Not stated |
| Board | Square board, 2.54 mm pin headers | 35.3 × 55.3 mm, 2.0 mm dual-row headers |
Pick the 20-meter kit for buckets, tanks and sumps up to a few metres deep, where millimetre resolution matters. Pick the 60-meter kit for tall silos, wells and long ranges, where the narrow horn beam keeps echoes off the walls.
Common specifications
- 76–81 GHz FMCW radar, 12 dBm transmit power, single-chip radar SoC (ADT3102) with Arm Cortex-M3, 1 MB flash, 192 KB SRAM
- UART0 at 115200 baud (default): distance in metres, 1–5 reports per second; echo curve (512 FFT bins) on request; signal strength in dB
- Configurable range, blind zone, sensor offset, measurement interval (≥ 100 ms), report rate and address (1–247); false-echo learning (full, zone, remaining zone)
- Radar supply 3.1–3.5 V (3.3 V typical), 135 mA typical, 600 mA max, ripple ≤ 50 mV; use a 3.3 V supply rated 1 A or more
- Operating temperature −40 °C to 85 °C
Accuracy is from our own bench measurements (20-meter kit ±2 mm; 60-meter kit ±4 mm at any distance, because its long-range waveform uses a narrower sweep bandwidth). Other figures are module maker datasheet values. Range and accuracy depend on mounting, target, vessel and scene.
In the box
- 1 × radar board, pre-flashed with the level-measurement firmware
- Antenna for the chosen version: lens radome (20-meter kit) or horn with PTFE lens, fitted (60-meter kit)
- Downloads on GitHub: configuration GUI for Windows, communication protocol notes, user guide and datasheets; light engineering help with your setup
- 1 × USB-to-TTL serial adapter (CH340) with Dupont jumper wires, to connect the board’s UART to your PC
The level-measurement firmware is fixed: the board is not offered for reprogramming with other 77 GHz applications. The kit is intended for level measurement inside closed tanks and vessels. Firmware and GUI source code are not included. For custom firmware or modules in volume, use the B2B program.
Typical uses
- Liquid and solid level in tanks, silos and IBCs
- Sump, well and open-channel level
- Non-contact distance, drone height hold
- Level transmitter product development
Why the lens and horn matter in a tank
A bare radar board has a wide beam. Inside a tank, a wide beam also lights up the walls, ladders, agitators, inlets and weld seams, and those reflections can show up as false echoes. The lens radome and the horn put more of the energy on the product surface, and the false-echo learning function masks fixed echoes that remain. That is why both kits ship with their antenna: the bare board alone is hard to use for real level work.
Guides and background
- Same 80 GHz Radar Chip, 20 m vs 60 m: Why the Antenna Wins
- Radar Principles 5: FMCW Chirp and Beat Frequency
- Radar Principles 6: Range FFT and Range Resolution
- Radome Design for 60 & 77 GHz Radar: Thickness, Angle, Water
Datasheet
Download the Kymopsis datasheet (PDF): both versions compared, pin functions, mechanical data and integration notes.
Spare parts
Need a spare lens radome or horn antenna for your board? Ask us for a quote.
Regulatory status
This radar is not FCC certified. It is not an authorized transmitter for unrestricted installation or operation. This page is not an FCC Grant, not a CE declaration, and not a finding that an evaluation-kit exemption has been met. If your finished product needs its own equipment authorization, use the B2B program; Kymopsis can scope the integration and support the laboratory and TCB process, but does not issue grants.
Questions
Which version should I buy?
The 20-meter kit for short ranges where millimetre resolution matters; the 60-meter kit for tall vessels and long ranges. Both report distance the same way over UART.
Can I read it from an Arduino, ESP32 or PLC?
Yes, over 3.3 V UART at 115200 baud. Use the GUI first to set range and blind zone, then read the distance reports from your own controller.
Is the accuracy guaranteed?
No. ±2 mm (20-meter kit) and ±4 mm (60-meter kit, at any distance) are our bench measurements, not a guarantee. The 60-meter kit trades accuracy for reach: its long-range waveform sweeps a narrower bandwidth. Your result depends on mounting, the surface and the vessel; the GUI lets you compare against a reference measurement.
Is this module FCC or CE certified?
No. It is a development kit for engineers and integrators, not an authorized end product.
Can Kymopsis support FCC authorization for a finished product?
Yes, as a separate B2B program. That work is not included in this kit.
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