60 GHz pulsed coherent radar — non-contact level sensing for water, wastewater, and chemical tanks.
PulsarQ™ is a 60 GHz pulsed coherent radar level sensor that measures liquid level without ever touching the liquid. Its narrow 20° beam delivers millimeter-level accuracy in wet wells, chemical tanks, clear wells, and water towers — sensing range 0.15–6 m (0.5–20 ft) at under 150 mW.
PulsarQ can read liquid level through the wall of a plastic chemical tank, so it can be installed externally on tanks of hypochlorite, fluoride, and other aggressive chemistries without ever exposing the sensor to the contents. The PETG-CF body and PETG lens are UV-stable and chemically resistant, so it survives both outdoor sun and indoor splash.
| PulsarQ™ Radar Level Sensor — P/N WBL-PQ-M-DC | |
|---|---|
| Operating Principle | Pulsed coherent radar |
| Operating Frequency | 60 GHz |
| Detection Range | 0.15 to 6 m (0.5 to 20 ft) |
| Accuracy | 2 mm |
| Resolution | 1 mm |
| Beam Width | 20° (mount within 10° of level with the surface) |
| Calibration | Automatic intelligent (AI) calibration on power up and on temperature change |
| Update Rate | > 5 Hz |
| Output | Modbus RS-485 (9600 baud, N,8,1; default Slave ID = 1) |
| Supply Voltage | 9 to 30 V DC |
| Power Consumption | < 150 mW (< 10 mA @ 12 VDC) |
| Operating Temperature | -40 to +80 °C |
| Connector | M12, 4-pin (power + Modbus A/B + ground) |
| Status Indicator | RGB LED — calibrating (orange), valid reading (green), peak overflow (purple), error (red) |
| Through-Wall Sensing | Yes — reads liquid level through plastic tank walls |
| Body Material | PETG-CF (carbon-fiber reinforced, UV-stable, chemically resistant) |
| Lens Material | PETG |
| Dimensions | 2.86″ W × 3.73″ H × 1.47″ D |
| Weight | 4 oz (113 g) |
| Mounting | 3M VHB tape direct, flat mounting adapter, 1½″ NPT adapter, or self-leveling adapter |
| Part Number | Description |
|---|---|
| WBL-PQ-M-DC | PulsarQ radar level sensor, M12 connector, DC powered |
| WBL-PQ-ACC-AD1 | Flat mounting adapter — two-part adapter for plastic tanks with a flat mounting surface |
| WBL-PQ-ACC-AD2 | 1½″ NPT adapter — mounts to any tank with a 1½″ or 2″ (with thread adapter) NPT bung port |
| Self-leveling adapter | Custom-angled adapter for sloped tank surfaces (up to 2.5° correction) — contact sales for selection |
Real PulsarQ installations from across our customer base.
All D6 Labs' products are designed and built by our team of engineers and technicians in the heartland of the USA. We do not outsource any part of our business so when you need support, you are talking directly to the people who design and build our product. We maintain stock on all parts so a replacement is just a phone call away.
