The DT-619 temperature difference anemometer is used to measure wind speed, air flow (volume), and temperature. The large and easy to read LCD display includes a first display and a second display, as well as many functional displays. The instrument has undergone comprehensive navigation testing and debugging, and can provide reliable and durable use.

[Features]
Wind speed measurement (single hole)
Wind speed average mode
Air flow measurement (CMM/CFM)
Air flow average mode
Data retention (wind speed/air flow)
Maximum/Minimum/Average (Wind Speed/Air Flow)
Auto Shutdown

Circuit: Using high-speed integrated MCU

Display: LCD dual display, 4-digit digital display
Sampling: Approximately once every second
Sensor: The wind speed sensor adopts ultra-low friction bearings
Temperature sensor: NTC type high-precision thermistor
Automatic power shutdown: In order to extend the battery life, the instrument panel will automatically shut down after 20 minutes.
Operating temperature: 32 ° F to 122 ° F (0 ° C to 50 ° C)
Storage temperature: 14 to 140oF (-10 to 60oC)
Operating humidity:<80% RH
Storage humidity:<80% RH
Operating altitude: Maximum value is 2000 meters (7000 feet)
Battery model: 9V (model: NEDA 1604)
Battery life: Approximately 80 hours (If the backlight continues to work, the battery life will be shortened.)
Battery capacity: approximately 8.3mAh DC
Weight: 725g (including battery and fan)
Size; Anemometer: 178 x 74 x 33mm
Fan: 70mm (diameter)

Technical indicators
Wind speed range resolution accuracy
m/s (米/秒) 0.40 - 30.00 m/s 0.01 m/s ± (3% + 0.20 m/s)
Km/h (kilometers per hour) 1.4-108.0 km/h 0.1 km/h ± (3%+0.8 km/hr)
Ft/min (feet/minute) 80-5900 ft/min 1 ft/min ± (3%+40 ft/m)
Mph (miles per hour) 0.9-67.0 mph 0.1 mph ± (3%+0.4 MPH)
Knots (sea speed) 0.8 to 58.0 knots 0.1 knots ± (3%+0.4 knots)
Air flow range resolution area
CMM
(cubic meters/min)
0-999900 m3/min 0.001 to 100 0 .000 to 999.9m2
CFM
(cubic ft/min)
0-999900 ft3/min 0.001 to 100 0.000 to 999.9ft2
Resolution accuracy of air temperature range
32 - 122oF (0 - 50oC) 0.1oF/C 4.0oF (2.0oC)