22154283 LM-SN Device for detecting start and end of precipitation and determining the length of precipitation periods. Measured value: precipitation status (rain, snow, hail etc.), output: precipitation = relay OFF (even when operating voltage = 0); no precipitation = relay ON, sensor range: 25 cm², drop size: Ø 0.2 mm, switch-on condition: adjustable between 1 and 15 events within 50 s; switch-off delay: adjustable between 25 and 375 s; contact loading: 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 ?, degree of protection: IP 65 to DIN 40050, EMC: EN 61321-1 with EN 61000-4-3, includes accessories for mounting on mast tube (Ø 34 to 50 mm), connecting terminals for 4 x 0.25 mm² LiYCY cables.