Online Spare Parts ReStore › Lufft-WS501 Lufft-WS501 $3,815.74 WS501-UMB Smart Weather Sensor w/ CMP3 Irradiance | All-in-one sensors (Air temp, RH, BP, Wind S&D) WS501-UMB Smart Weather Sensor w/ CMP3 Irradiance | All-in-one sensors (Air temp, RH, BP, Wind S&D) Add To Cart Added! You Might Also Like Hukseflux-Cable-10m Weidmueller-1240920000 Campbell Scientific Back of Module (BOM) Temperature Sensor Kipp & Zonen-K0385900 Lufft-WS500