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Technical terms
No.
Item
Unit
Specification
1
Construction
Open
2
Using method
Dual
3
Nominal Frequency
Hz
40K
4
S P L
dB
≥115(10V/30cm/sine wave)
5
Sensitivity
≥-65dB V/u bar
6
Directivity
deg
55
7
Capacitance
pF
2400±25%@1KHz
8
Allowable input voltage
Vp-p
150(40KHz)
9
Detectable range
m
18
10
Operating Temperature
℃
-20….+70
11
Housing material
Al
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