RIKA RK900-12
RK900-12
A weather instrument measuring wind speed and direction, air temperature, relative humidity, air pressure, solar irradiance, rainfall, PM1/PM2.5/PM10, illuminance, noise, visibility and UV. This configuration includes RS232 output and a 10 m cable.
Measurement parameters and specifications
The table covers only the sensors included in this configuration supplied by Kordil. Performance figures follow the technical sheet for this model.
| Parameter | Principle | Range | Resolution | Accuracy |
|---|---|---|---|---|
| Wind speed | Ultrasonic | 0–70 m/s | 0.1 m/s | ±3% FS |
| Wind direction | Ultrasonic | 0–359° | 1° | ±3° |
| Air temperature | MEMS | −40 to +80 °C | 0.1 °C | ±0.5 °C |
| Relative humidity | MEMS | 0–100% RH | 1% RH | ±3% RH |
| Air pressure | MEMS | 300–1100 hPa | 0.1 hPa | ±1 hPa |
| Rainfall intensity | Radar | 0–200 mm/h | 0.1 mm | ±5% |
| Solar irradiance | Silicon cell | 0–2000 W/m² | 0.1 W/m² | ±5% |
| UV irradiance | Silicon cell | 0–2000 W/m² | 0.1 W/m² | ±10% |
| Illuminance | Silicon cell | 0–200000 lx | 0.1 lx | ±5% |
| PM1 concentration | — | — | — | — |
| PM2.5 concentration | Photoelectric scattering | 0–2000 µg/m³ | 1 µg/m³ | ±5% |
| PM10 concentration | Photoelectric scattering | 0–2000 µg/m³ | 1 µg/m³ | ±8% |
| Visibility | Forward scattering | 10–10000 m | 1 m | ±15% |
| Noise level | MEMS | 30–130 dB | 0.1 dB | ±3 dB |
FS = full scale; RH = relative humidity. —: Not specified in the technical sheet for this model.
The rainfall range describes intensity (mm/h); the 0.1 mm resolution refers to rainfall amount. PM1 is included in this configuration, but the technical sheet does not provide a separate PM1 range, resolution or accuracy.
The sensor measurement range differs from the instrument operating-temperature range; observe the operating conditions listed below.
Source: RK900-12 technical sheet (V5.3, 2026-04-16).
Electrical specifications and operating conditions
- Wind speed range: 0–70 m/s
- Supply: 12–24 VDC
- Ingress protection: IP65
- Power consumption: <1.7 W
- Operating temperature: -20 … +70 °C
Connection and installation
The supplied instrument has RS232 output, a 12–24 VDC supply and a 10 m cable. Check the communication protocol and wiring against the product manual when integrating with your data acquisition system.
Contact Kordil for integration and a quotation
Technical sources: manufacturer-supplied RK900 series specifications and manuals. Features depend on the selected configuration.