Display	LCD size : 28 mm x 19 mm.
Measurement Unit	m/S (meters per second) , Km/h ( kilometers per hour ) , Knot ( nautical miles per hour ) , ft/min ( feet per minute ) , mile/h ( miles per hour )
Circuit	Custom one-chip of microprocessor circuit.
Data Logger	Max. can save 100 point data with recall Manual, push the data logger button once will save data one time.
Sensor Structure	Cup van probe with low friction ball bearing design.
Data Hold	Freeze the display reading.
Memory Recall	Maximum & Minimum value. 通风管道风速测量
Sampling Time	Approx. 1 second.
Power off	Auto shut off saves battery life or manual off by push button.
Operating Temperature	0 to 50℃ .测量室内风速
Operating Humidity	Less than 80% R.H.
Power Supply	DC 1.5 V battery ( UM4/AAA ) x 4 PCs,
Power Current	Approx. DC 6.8 mA
Weight	181 g/ 0.4 LB. @ Battery is included.
Dimension	Main instrument :190 x 40 x 32 mm (7.5" x 1.6" x 1.3") Cup vane ( 3 cups with arm ) :135 mm dia.
Accessories Included	Instruction manual........................1 PC Carrying case................................1 PC 伸缩式探杆风速测量