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Conversion table of several Measurement Units
Beaufort
knots
1
1 -
2
4 -
3
7 - 10
4
11 - 16
5
17 - 21
6
22 - 27
7
28 - 33
8
34 - 40
9
41 - 47
10
48 - 55
11
56 - 63
12
>64
Technical Specifications
Accuracy
Current
wind
±4%
speed
Average
wind
±4%
speed
Current
±0.5 °C
temperature ±(0.9 °F)
Wind-chill
factor
3)
Pressure
±2 mbar
Altitude
±2 m
1)
measured in still air
2)
based on a formula provided by the Midwestern Climate Center, USA:
wc = 91.4 - (0.474677 - 0.020425 v + 0.303107 sqrt(v)) (91.4-T)
where wc = wind-chill factor (°F), v = wind speed (mph) and T = temperature (°F)
3)
absolute pressure. (Pressures 3, 6, 9, 12 hours ago are displayed.)
Hygrometer part
Temperature
use
Precision Resolution Minimum Maximum Sampling
-10°C...50°C
±3 %rH
km/h
3
1 -
6
6 -
12 -
20 -
29 -
39 -
50 -
62 -
75 -
89 - 102
103 - 117
>118
Resolution Minimum
0.1 knots
0.1 mph
0.1 km/h
0.1 m/s
0.1 knots
0.1 mph
0.1 km/h
0.1 m/s
1 °C
1 °F
2)
-
1 °C
1 °F
1 mbar
4)
1 m
1 %rH
mph
5
1 -
11
4 -
19
8 - 12
28
13 - 18
38
19 - 24
49
28 - 31
61
32 - 38
74
39 - 46
88
47 - 55
56 - 64
65 - 73
>74
Maximum
108 knots
0
125 mph
202 km/h
56 m/s
108 knots
0
125 mph
202 km/h
56 m/s
-30 °C
50 °C
-22 °F
122 °F
—
—
300 mbar
1100 mbar
-500m
8000m
0 %rH
99 %rH
m/s
3
1 -
2
7
2 -
3
4 -
5
6 -
7
8 - 10
11 - 13
14 - 16
17 - 20
21 - 24
25 - 28
29 - 32
>33
Sampling
1 sec
—
1 sec
1 sec
1 hour
—
1,5 sec
fps
1 -
4
5 -
10
11 -
17
18 -
25
26 -
34
35 -
44
45 -
55
56 -
67
68 -
80
81 -
92
93 - 106
>107
Response
time
3 sec
—
1)
5 min
—
—
—
Response
time
5 min
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