Water Monitoring
ND-RAD Radar Distance / Level Sensor
What is the ND-RAD? The ND-RAD is a precision radar distance and level sensor with up to 20 m range, 1 mm resolution and ≤2 mm deviation. The narrow 8° beam and radar physics make it immune to vapour, foam, dust and temperature variation — conditions that defeat ultrasonic sensors. Ideal for generic ranging and proximity, level monitoring, water level monitoring and flood-warning systems connected to the yDoc ML-525 datalogger.
The ND-RAD is a precision radar distance and level sensor with up to 20 m range, 1 mm resolution and ≤2 mm deviation. The narrow 8° beam and radar physics make it immune to vapour, foam, dust and temperature variation — conditions that defeat ultrasonic sensors. Ideal for generic ranging and proximity, level monitoring, water level monitoring and flood-warning systems connected to the yDoc ML-525 datalogger.
Key parameters
What the ND-RAD measures
Distance / level
0–20 m radar range, 1 mm resolution
Deviation
≤ 2 mm — reference-grade precision
Immunity
Unaffected by vapour, foam, dust or temperature
Direct integration
5 m cable to the yDoc ML-525 over Modbus / SDI-12
Specifications
Technical specifications
| Parameter | Property | Value |
|---|---|---|
| Method | Type | FMCW radar |
| Beam angle | 8° narrow beam | |
| Distance / level | Range | 0–20 m |
| Resolution | 1 mm | |
| Deviation | ≤ 2 mm | |
| Mechanical | Sensor housing | 120 × 100 × 78 mm |
| Cable | 5 m | |
| Mounting | Above water surface or tank | |
| Output | Protocol | Modbus / SDI-12 |
| Compatibility | yDoc ML-525 datalogger |
Applications
Where the ND-RAD is used
Generic ranging
High-precision distance measurement for industrial automation and proximity monitoring.
Tank & silo level
Process tank, silo and bulk storage level — reliable through vapour, foam and dust.
Water level monitoring
Long-term level monitoring of streams, reservoirs and stormwater systems.
Flood monitoring
Reference-grade level data for flood early-warning networks and bridge clearance monitoring.
Integration
Powered by the yDoc ML-525 datalogger
The ND-RAD connects directly to the yDoc ML-525 datalogger. The yDoc powers the sensor, schedules measurements, stores readings locally and transmits them to the Sensor-Online platform via 4G/LTE-M, NB-IoT, LoRaWAN, satellite or Ethernet — with up to 10 years of battery life.
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FAQ
Frequently asked questions about the ND-RAD
What does the ND-RAD measure?+
When to choose radar over ultrasonic?+
Does it work through foam or vapour?+
Ready to deploy the ND-RAD?
Get a quote, technical advice, or a complete bundle with the yDoc ML-525 datalogger and Sensor-Online platform subscription.