or
VWR Enviro-Meter Digital Anemometer/Hygrometer/Light Meter/Thermometer Air velocity ranges: 80-5910ft./min. 0.4-30m/sec. 1.4-108km/hr. 0.9-67mph 0.8-58.3knots. Hygrometer range: 10-95%rh. Light meter ranges: 0-20000lux 0-2000footcandles. External thermome