HP 780 Wiper Cleaning Kit. Operating relative humidity range: 30 - 70 %, Operating temperature range (T-T): 15 - 30 °C, Storage relative humidity range: 10 - 80 %. Weight: 0.23 kg, Package weight: 2.8 kg. Package dimensions (WxDxH): 77 x 60 x 181 mm, Pallet size (EU): 1330 x 1030 x 1120 mm, Printing material shelf life: Until "use-by date"