Shanghai Total Industrial Co., Ltd.

Sound Level Meter, Sound Analyzer, Sound Level Calibrator manufacturer / supplier in China, offering Measure Microphone/ Microphone Preamplifier, Optical Fiber and Power Cable Hanger, Optical and Power Cable Clamps, Optical Fiber & Power Cable Hanger, Optical and Power Cable Clamps and so on.

Supplier Homepage Product List meter and instrument Measure Microphone/ Microphone Preamplifier

Measure Microphone/ Microphone Preamplifier

FOB Price: Get Latest Price
Min. Order: 1 Piece
Production Capacity: 1000PCS/Month
Transport Package: Carrying Case
Payment Terms: L/C, T/T, Paypal, Western Union

Basic Info.

Model NO.:SR4403/04/22/23/25/31/35/SR4601/03/04/14E/00E
Measure Microphone Size:12.7mm (1/2"), 6.35mm (1/4")
Specification:IEC-61672 Class 1, IEC60942 Class 1
Origin:Shanghai, China
HS Code:9025800000

Product Description

Measure Microphone
-Comply with IEC 61672 Class 1 or 2;
-Low ambient temperature coefficient;
-High resistance to humidity.
-Precision acoustic measurements;
-Pressure variation measurements.

Microphone Preamplifier
-1/2" prepolarized microphone compatible;
-Lemo connector with cable for easy installation and use;
-Low output impedance so that long extension cable can be used.
-Signal analysis measurements setups;
-With 1/2" Prepolarized Condenser Microphones;
-Sound power measurements;
-Machinery noise measurements.
Model Diameter Open Circuit Sensitivity (mV/Pa) Polarization Voltage (V) Frequency Range (Hz) Frequency Response Characteristic Dynamic Range (dB) Capacitance (pF) Ambient Temperature
Coefficient (dB/°C)
SR4403 Φ12.7mm (1/2") 15 200 20~40,000 Free filed 30~160 18 0.01 Type WS1
SR4404 15 20~12,000 Pressure filed 30~160 18 0.01 Type WS1
SR4422 30 0 20~10,000 Pressure filed 20~142  15 0.02 Type WS2
SR4423 50 10~20,000 Free filed 16~140  19 0.01 Type WS2
SR4425 40 10~16,000 Free filed 17~140  20 0.01 Type WS2
SR4431 Φ6.35mm (1/4") 4 10~70,000 Free filed 40~160 6 0.01 Type WS3
SR4435 4 10~20,000 Free filed 40~160 6 0.01 Type WS3
Models SR4601 SR4603 SR4604 SR4614E SR4600E
Frequency Response
(re. 250 Hz)
10Hz~20kHz, +0.2dB
5Hz~200kHz, +0.5dB
10Hz~50kHz, +0.2dB
5Hz~50kHz, +0.5dB
20Hz~20kHz, +0.2dB
10Hz~100kHz, +0.5dB
20Hz~20kHz, +0.2dB
10Hz~100kHz, +0.5dB
10Hz~20kHz, +0.2dB
5Hz~200kHz, +0.5dB
Measurement Range
(dB) (re. 50mV/Pa)
15~140 15~120 15~134 15~134 15~140
Gain -0.2dB 20dB -0.15dB -0.25dB -0.2dB
Input Impedance ≥10GΩ//0.5pF ≥10GΩ//0.35pF ≥10GΩ//0.35pF ≥10GΩ//0.35pF ≥10GΩ//0.5pF
Noise A-weighting (20pF) <2.5u
Z-weighting (20pF) <10uV
A-weighting (20pF) <4uV
Z-weighting (20pF) <10uV
A-weighting (20pF) <4uV
Z-weighting (20pF) <15uV
A-weighting (6.5pF) <8.5uV
Z-weighting (6.5pF)
A-weighting (20pF) <4uV
Z-weighting (20pF) <10uV
Distortion (THD) <-60dB
Output Impedance <150Ω <50Ω <50Ω <50Ω <150Ω
Max. Output Voltage 20Vp-p (at power voltage 30V) 8VRMS (at power voltage 30V) 6VRMS (at power voltage 24V) 6VRMS (at power voltage 24V) 20Vp-p (at power voltage 30V)
Power Voltage 15~45V 9~30V 1CP 2mA~10mA 1CP 2mA~10mA 15~45V
Operating Current 1mA 2mA 1CP 2mA~10mA 1CP 2mA~10mA 1mA
Polarization Voltage (V) 200, 28, 0 0
Outside Diameter Φ12.7mm (1/2") Φ6.35mm (1/4") Φ12.7mm (1/2")
Weight <20g (not include cabel)
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Shanghai Total Industrial Co., Ltd.

- Shanghai, China
- Manufacturer/Factory

Gold Member Since 2006
Audited Supplier