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By certification 
Model suffix:A,B
Standard:GB/T15173,ANSIS1.41 CLASS2,IEC942
Output sound level:94dB,114dB
Accuracy:0.5dB(A) 0.3dB(B)
Frequency:1000Hz
Design for:1'',1/2''
Power supply:1×9V 6F22 Battery
Dimension:142×44×47mm
Weight(Not including battery):275g
Standard delivery:Main unit 1pcs
carryinh case type B03
Instruction manual 1pcs
Standard:GB/T15173,ANSIS1.41 CLASS2,IEC942
Output sound level:94dB,114dB
Accuracy:0.5dB(A) 0.3dB(B)
Frequency:1000Hz
Design for:1'',1/2''
Power supply:1×9V 6F22 Battery
Dimension:142×44×47mm
Weight(Not including battery):275g
Standard delivery:Main unit 1pcs
carryinh case type B03
Instruction manual 1pcs
