External sensor head measures past pipes, pumps and floats with a narrow measuring cone and even withstands a brief cistern overflow
SKU: SEN180-ER
In stock, delivered within 2-4 business days
Not sure about the antenna? Write to us or give us a call: +49 (0) 155 66290292 (English / German).
The Senvolon RD ER level sensor complements our radar level sensors with a version for challenging installation situations. It measures with 80 GHz RADAR, the industry standard for level measurement, contactless and to the millimeter, down to 20 m. Sensor head and electronics are separate: only the compact sensor head (IP67) goes into the container. Its lens antenna focuses the radar signal into a measuring cone of ±3°, so it measures past walls, pipes, pumps and floats, even in narrow or crowded shafts. The electronics box (IP65) can be placed outside the cistern or tank via the 2 m cable, for example where Wi-Fi reception is best. The sensor shows all readings directly in your browser, no app or cloud required. In addition, it can be integrated into Home Assistant, ioBroker and other smart home systems via MQTT.
For difficult reception conditions, the RD ER is also available with an external Wi-Fi antenna connector (RP-SMA) on the electronics box, optionally as a set with a matching 2.4 GHz antenna.
Fog, dust and condensation resistant
3-year warranty
Made in Germany
Flexible smart home integration
Optional cloud access
Privacy-friendly
Free software updates
English-speaking support
The Senvolon level sensor monitors the current water level in real time. Among other things, this allows homeowners to know the available water quantity in their rainwater tank precisely at any time and plan its use more efficiently.
Senvolon LiDAR Level Sensor LD Wi-Fi, Centimeter-Accurate up to 12 m, for Liquids and Solids
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Senvolon Radar Level Sensor RD Wi-Fi, Millimeter-Accurate up to 40 m, Optimized for Liquids
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Senvolon Radar Level Sensor RD ER Wi-Fi, IP67 Sensor Head for Challenging Installations
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| Measurement technology | LiDAR, contactless | Radar, 80 GHz, contactless | Radar, 80 GHz, contactless |
| Wi-Fi antenna | integrated, or with an external connector for an external Wi-Fi antenna | integrated, or with an external connector for an external Wi-Fi antenna | integrated, or with an external connector for an external Wi-Fi antenna |
| Smart home integration | |||
| Remote control via German cloud possible | |||
| Power supply | 230V AC (power outlet) | 230V AC (Wall socket) | 230V AC (Wall socket) |
| Housing dimensions (mm) | 75 x 39 x 108 mm | 55 x 39 x 108 mm | Sensor head Ø 67 x 91.6 mm, box 55 x 39 x 108 mm |
| Best for | Liquids and Solids | optimized for liquids | narrow and crowded shafts, electronics outside the container |
| Measurement accuracy | +/- 5 cm | +/- 5 mm | +/- 3 mm |
| Maximum measurement depth | 12 m | 40 m | 20 m |
| Price | 189,00 € | 289,00 € | 389,00 € |
FAQ
Answers to frequently asked questions.
We grant a three-year warranty on all our products. This covers manufacturing and material defects.
Our level sensors measure without contact, either with light (LiDAR) or with microwaves (RADAR). The choice depends on the accuracy you need, the medium being measured and the conditions in the container:
LiDAR (light)
RADAR (microwave)
You can find the range, accuracy and antenna options of each model in the technical data on the respective product page.
The fill level can be measured in any container geometry, as long as the depth is within the range of the respective model (see technical data). Typical application scenarios include:
