Product synopsis Application: Installation, debug and repair for refrigeration industry, ventilation duct, environment monit-or, navigation measurement, weather forecast, collection of the weather datum for outdoor busywork and fire department. Model: AM4836V Display 0.5� ( 13mm) 4-digitLCD Measurement unist Air Velocity: m/ s, km/ h, ft/ min, knots Air Flow: CMM( m3/ min) CFM( ft3/ min) Beaufort scale: Force Wave Height: m TEMP: & Data hold MaxIMum Value Data memorized 24groups Sampling rate reading per second approx Sensors air velocity/ flow sensor: Conventional angled vane arms Wa ith low-friction ball bearing Temperature sensor: Precision thermistor Automatic Power off 0-9minutes set by users Data output RS232C serial interface Operating temperature 14 to140 ( -10 to60 ) Operating humidity Max.80% RH Power supply 260g( 0.571b) including batteries& probe Dimensions main instrument: 156x67x28mm( 6.1x2.6x1.1� ) Optional accessories Cable+ software for rs232C Air Velocity Range Resolution Accuracy m/ s ( meters per sec) 0.4-45.0 0.1 m/ s ± ( 2% + 0.1m/ s) km/ h ( kilo-meters/ hour) 1.4-162.0 0.1 km/ hr ± ( 2% + 0.1km/ hr) ft/ min ( feet per minute) 80-8860 0.1 ft/ min ± ( 2% + 1ft/ min) knots ( nautical MPH) 0.8-88.0 0.1 knots ± ( 2% + 0.1 nots) Air Flow CMM ( cubic meters/ min) 0-9999 0.001 to1 ± ( 2% + 1m³ / min) CFM ( cubic ft/ min) 0-9999 0.001 to1 ± ( 2% + 1ft³ / min) Beaufort Scale 0-12 0.1 ± 0.5 Direction 0-360° 22.5° ± 22.5° Wave Height 0-14 0.1 ± 0.1 Air Temperature 14 - 140 0.1 0.9