CEM Pitot Tube Anemometer Plus Differential Manometer DT-8920

CEM Pitot Tube Anemometer Plus Differential Manometer DT-8920

BTMETER Digital Anemometer Handheld - BTMETER BT-100 Wind Speed Meter Gauge, Accurately Measure Wind Temperature Speed CFM with MAX/MIN/AVG, Backlight LCD for Shooting, HVAC, Drone Flying

Protmex HT607 Temperature Humidity Meter High Precision Digital Hygrometer with Ambient, Relative Humidity, Dew Point, Wet Bulb Thermometer, Min/Max Hold, LCD Backlight with Cover Protector