... basic instruments, heating, ventilation, air conditioning, environmental protection, energy conservation monitoring, meteorology, agriculture, refrigerating, drying, labor health survey, clean workshop, ... 1 m/ s 0.2°CData hold function√√USB transmission√√IR thermometer -50~300 °CGeneral characteristics & Packing informationPower9 V ... .5Carton Gross weight17 kg17 kg Air Flow Anemometer/IR thermometer