how to measure sound pressure level

Brand Name:HL

Model Number:HL-ME007Y-X

Place of Origin:Chengdu

...measuring module Features: 1) High sound pressure output; 2) Power supply: 5V; 3) Current: less than 20mA; 4) UART auto-output; 5) PWM controlled output; 6) Digital output; 7) Center frequency: 40KHz; 8) Temperature compensation; 9) Working temperature: -15℃ to +60℃; 10) Storage temperature: -25℃ to +80℃; 11) Measurement accuracy: ±1cm+(S*0.3%)(S is measured value); Application: 1) Level

Brand Name:YJJ

Model Number:KPEG182

Place of Origin:CHINA

... measurement :30cm Outer diameter :44.8mm Minimum operating temperature :-40°C Maximum operating temperature :105°C Power supply ...

Place of Origin:China

Brand Name:DX

Model Number:DXYD57W-32F-4A

... (Sine wave) 1m measured with baffler shown in Fig.1. 2 IMPEDANCE: 4±15%Ω(@2KHz 1V) without baffler. 3 RATED POWER: 1.0W（White Noise for 48hours）. MAX POWER: 2.0W. 4 RESONANCE FREQUENCY (F0): 450±20%Hz @ 1V. 5 SOUND POWER: 1.0W (F0~4.5KHz) must be

Place of Origin:China

Brand Name:DX

Model Number:DX

... (Sine wave) 1m measured with baffler shown in Fig.1. 2 IMPEDANCE: 8±15%Ω(@1KHz 1V) without baffler. 3 RATED POWER: 0.5W（White Noise for 48hours）. 4MAX POWER: 1.0W. 5RESONANCE FREQUENCY (F0): 280±20%Hz @ 1V. 6 SOUND POWER: 0.5W (FO~6KHz)

Place of Origin:China

Brand Name:DX

Model Number:DX

...) 0.1m measured with baffler shown in Fig.1. 2 IMPEDANCE: 8±20%Ω(@2KHz 1V) without baffle 3 RATED POWER: 1.0W（White Noise for 48hours）. MAX POWER: 2.0W. 4 RESONANCE FREQUENCY (F0): 650±20%Hz @ 1V. 5 SOUND POWER: 1.0W (F0~6KHz) must be normal with

Place of Origin:China

Brand Name:DX

Model Number:DXYD87W-60F-8A

...SOUND PRESSURE LEVEL 90±3dB SPL（Average at 800Hz,1000Hz,1200Hz,1500Hz） Measuring condition: 0.1W (Sine wave) 0.1m measured with baffler . 2 IMPEDANCE: 8±15%Ω(@2KHz 1V) without baffler. 3 RATED POWER: 7.0W（White Noise for 48hours）. MAX POWER: 15.0W. 4 RESONANCE FREQUENCY (F0): 400±20%Hz @ 1V. 5 SOUND...

Brand Name:Yuesonic

Model Number:YS-B32

Place of Origin:China

...Sound Level 1. Specifications Sound pressure 75±4(A)AT 4FT Voltage 12~28VDC Maximum current 0.5A Temperature -40°C ~ 75°C Frequency 500Hz~7KHz±10% Work cycle 4second Weight 320g 2. Description 1. BJX series is made for truck bus applications in low noise areas. 2. Intelligent models measure the ambient noise level and adjust their output level...

Brand Name:Yuesonic

Model Number:YS-B32

Place of Origin:China

...Sound Level 1. Specifications Sound pressure 75±4(A)AT 4FT Voltage 12~28VDC Maximum current 0.5A Temperature -40°C ~ 75°C Frequency 500Hz~7KHz±10% Work cycle 4second Weight 320g 2. Description 1. BJX series is made for truck bus applications in low noise areas. 2. Intelligent models measure the ambient noise level and adjust their output level...

Place of Origin:China

Brand Name:DX

Model Number:DX

...4ohm loudspeaker DXI40N-B contact with us: yxl(at)duoxin(dot)com 1 SOUND PRESSURE LEVEL 84±3dB SPL（Average at 800Hz,1000Hz,1200Hz,1500Hz） Measuring condition: 0.1W (Sine wave) 1m measured with baffler shown in Fig.1. （SPL (min) ≥ 85DBA – from 1 ...

Brand Name:Yuesonic

Model Number:YS-B04

Place of Origin:China

...sound IP68 waterproof heavy machinery reversing alarm/siren 1. Specifications Sound pressure 75±4(A)AT 4FT Voltage 12~28VDC Maximum current 0.5A Temperature -40°C ~ 75°C Frequency 500Hz~7KHz±10% Work cycle 4second Weight 110g 2. Description 1. BJX series is made for truck bus applications in low noise areas. 2. Intelligent models measure the ambient noise level and adjust their output level...

Brand Name:Yuesonic

Model Number:YS-B11

Place of Origin:China

... cycle 4second Weight 110g 2. Description 1. BJX series is made for truck bus applications in low noise areas. 2. Intelligent models measure the ambient noise level and adjust their output level. 3. create a volume that is

Brand Name:Yuesonic

Model Number:YS-B32

Place of Origin:China

... cycle 4second Weight 110g 2. Description 1. BJX series is made for truck bus applications in low noise areas. 2. Intelligent models measure the ambient noise level and adjust their output level. 3. create a

Brand Name:Yuesonic

Model Number:YS-B32

Place of Origin:China

... cycle 4second Weight 110g 2. Description 1. BJX series is made for truck bus applications in low noise areas. 2. Intelligent models measure the ambient noise level and adjust their output level. 3. create a volume that

Brand Name:Yuesonic

Model Number:YS-BK

Place of Origin:China

... cycle 4second Weight 1100g 2. Description 1. BkX series is made for truck bus applications in High noise areas. 2. Intelligent models measure the ambient noise level and adjust their output level.

Brand Name:Yuesonic

Model Number:YS-B81-S

Place of Origin:China

...sound car alarm buzzer siren 1. Specifications Sound pressure 75±4(A)AT 4FT Voltage 12~28VDC Maximum current 0.5A Temperature -40°C ~ 75°C Frequency 500Hz~7KHz±10% Work cycle 4second Weight 110g 2. Description 1. BJX series is made for truck bus applications in low noise areas. 2. Intelligent models measure the ambient noise level and adjust their output level...

Brand Name:Yuesonic

Model Number:YS-B22D

Place of Origin:China

...Sound Customise Alarm With CE E-mark IP68 Waterproof 112dB and Good Qaulity 1. Specifications Sound pressure 102±4(A)AT 4FT Voltage 12~48VDC Maximum current 0.5A Temperature -40°C ~ 75°C Frequency 500Hz~7KHz±10% Work cycle 4second Weight 220g 2. Description 1. BJX series is made for truck bus applications in low noise areas. 2. Intelligent models measure the ambient noise level and adjust their output level...

Brand Name:Yuesonic

Model Number:YS-BK

Place of Origin:China

... cycle 4second Weight 1100g 2. Description 1. BkX series is made for truck bus applications in High noise areas. 2. Intelligent models measure the ambient noise level and adjust their output level.

Brand Name:TAIMI

Model Number:TM-US10144ATR Waterproof Ultrasonic Transducer

Place of Origin:CHINA

...frequency 25KHz±1KHz Sound pressure level 110dB (0dB=0.02mPa) Ringing ≤1.2ms Directivity 65(–6dB) Capacitance 2500pF±15% Operating temperature -30 to +80℃ Storage temerature -40 to +85℃ Measure distance 0.2~18m Max.input voltage 20Vrms Ultrasonic

Brand Name:TaiMI

Model Number:TM-1625H12T/R

Place of Origin:CHINA

... ≤1.2ms Directivity 65(–6dB) Capacitance 2500pF±15% Operating temperature -30 to +80℃ Storage temerature -40 to +85℃ Measure distance 0.2～18m Max.input voltage 20Vrms Center Frequency:40.0±1.0Khz Bandwidt(-6dB) F.O.M.:1

Brand Name:TaiMI

Model Number:TM-1625H12T/R

Place of Origin:CHINA

.../Receiver Center frequency 25KHz±1KHz Sound pressure level 110dB (0dB=0.02mPa) Ringing ≤1.2ms Directivity 65(–6dB) Capacitance 2500pF±15% Operating temperature -30 to +80℃ Storage temerature -40 to +85℃ Measure distance 0.2～18m Max.input