Device for determining the start and end of precipitation, as well as the duration of precipitation periods. Measured value: precipitation status (rain, snow, hail, etc.), output: precipitation = relay OFF (also when UB = 0), no precipitation = relay ON, sensor range: 25 cm², drop size: diameter 0.2 mm, switch-on condition: adjustable 1 to 15 events within 50 s, switch-off delay: adjustable 25...375 s, contact load: max. 230V AC, 4 A, operating voltage: 24 V AC/DC +/- 15%, operating current: approx. 70 mA, heating current max. 1 A, ambient temperature: -25 °C... +55 °C, protection class: IP 65 according to DIN 40050, EMC: EN 61321-1 with EN 61000-4-3, including accessories for mounting on mast tube (diameter 34 - 50 mm), connection terminals for cable 4 x 0.25 mm² LiYCY.