Model No.: : TM-402~ TM-404
Product Description
- 30mm 6 plastics blade
- Light air response 0.4m/ s
- Air flow calculate function.
- Max/ Min/ Avg and data hold.
- Datalogging capacity: 99 records.
- Memory recall function.
- Backlight function.
- Absolute Pressure Sensor
- Humidity Sensor

Application : 

TM-40X series measures air speed, temperature and humidity. It is ideal for spot measurements
at air outlets on account of its 30mm vane. In addition to air speed and temperature, also measures air moisture and absolute pressure. In this way, air conditions can be reliably checked.

Four models: 
MODEL# 
Velocity
99 Record
Flow
Temperature
Humidity
Pressure
TM-401
V
V
V

TM-402
V
V
V
V

TM-4 03
V
V
V
V
V

TM-404
V
V
V
V
V
V

Specification
Velocity ( Air Speed) : 
Unit
Range
Resolution
Accuracy
m/ s
0.4~ 25
0.1
± 2j+ 0.2
Km/ hr( kph) 
1.5 ~ 90
0.1
± 2j+ 0.8
mph
0.9~ 55
0.1
± 2j+ 0.4
Knots( kts) 
0.8~ 48
0.1
± 2j+ 0.4
ft/ min( fpm) 
79~ 4921
1
± 2j+ 40
Beaufort
1~ 10
1
--

Air Flow Calculation: 
Unit
Range
Resolution
Accuracy
CMM
0~ 9999
1
--
CFM
0~ 9999
1
--

Temperature: 
Unit
Range
Resolution
Accuracy
 
-20~ 60
0.1
± 1 

-4~ 140
0.1
± 1 .8

Humidity: 
Unit
Range
Resolution
Accuracy
% RH
20~ 80
0.1
± 3.5% RH
% RH
80
0. 1
± 5% RH

Absolute Pressure: 
Unit
Range
Resolution
Accuracy
hPa
350~ 1100
0.1
± 2hPa
mmHg
263~ 825 
0.1
± 1.5mmHg
inHg
10.3~ 32
0.1
± 0.1