Our sensors are very durable and reliable - the battery lasts for over two years. The sensors are mobile, you can change their place during use depending on your needs. The number of sensors depends on the size of the crop: anti-frost sensor for air temperature and humidity: one per hectare, weather station: one per 5 km², EC and PH sensor: from 3 to 5 per hectare. After purchasing the sensors, scan the QR code on them with your phone, and then place them on your fields. They do not need to be calibrated - they are ready to work.