TENMARS TM-401, TM-402, TM-403, TM-404

Model TM-401 Velocity/ Flow Meter Model TM-402 Velocity/ Flow/ Temperature Meter Model TM-403 Velocity/ Flow/ Temperature/ Humidity Meter Model TM-404 Velocity/ Flow/ Temperature/ Humidity/ Pressure Meter Model TM-411 Velocity/ Flow Meter Model TM-412 Velocity/ Flow/ Temperature Meter Model TM-413 Velocity/ Flow/ Temperature/ Humidity Meter Model TM-414 Velocity/ Flow/ Temperature/ Humidity/ Pressure Meter Features 30mm 6 plastic blades. Fast response Temperature sensor. Air flow calculation function. Max/ Min/ Avg and Data Hold. Auto power off with disable function. Low battery indication. Data logging capacity up to 99 records. Memory recall function. Air Velocity Units Ranges Resolution Accuracy m/ s 0.4 to 25 0.1 ± 2% of rdg + 0.2 Km/ hr 1.5 to 90 0.1 ± 2% of rdg + 0.8 mph 0.9 to 55 0.1 ± 2% of rdg + 0.4 knots 0.8 to 48 0.1 ± 2% of rdg + 0.4 ft/ min 79 to 4921 1 ± 2% of rdg + 40 Beaufort 1 to 10 1 - Air Flow ( Volume) Calculation Units Ranges Resolution Accuracy CMM 0 to 9999 1 - CFM 0 to 9999 1 - Temperature Units Ranges Resolution Accuracy ° C -20° C to 60° C 0.1° ± 1° C ° F -4° F to 140° F 0.1° ± 1° F Humidity Units Ranges Resolution Accuracy % RH 20 to 80 0.1 ± 3.5% RH Atmospheric Pressure Units Ranges Resolution Accuracy hPa 350 to 1100 0.1 ± 2hPa mmHg 263 to 825 0.1 ± 1.5mmHg inHg 10.3 to 32 0.1 ± 0.1 Backlight display. Atmospheric Pressure Sensor. Humidity sensor.