Temperature sensor (PT-100): accurate and very stable in a wide temperature range installed in a stainless steel probe.
Measuring range: -50 to +50 °C or 0 to +100 °C
The tempertature sensor serves for readings of air, water of growth media, temperature.

Electronic humidity sensor (accuracy +/-3%) with a 4-20 mA output

Dry-wet temperature and humidity sensor (psychrometer). Based on a pair of temperature sensors installed in ventilated cell. One of the sensors is covered with special sleeve, dipped into distilled water. The difference between two measurings of the sensors read by the controller, is calculated through a psychrometric table and presented as relative humidity (%). This kind of sensor is especially designed for high humidity levels, more accurate and cheaper than electronic sensor. It requires a periodical maintenance (once at 2-3 weeks).

Solar Radiation (P.A.R.) - for measurement of light intensity in the range of photosynthesis activity.

Wind speed sensor (with analog output 4-20 mA).

Wind direction sensor (with analog output 4-20 mA).

Rain meter- records every 0.2 mm of rain.