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SS 601&603

Semi-permanent outdoor microphone kit
SS 601/603 is a special microphone kit for outdoor monitoring, which can prevent wind noise, rain, and birds from roost, etc., and is suitable for use in outdoor regular weather. The bird cone can be easily removed for daily maintenance calibration. The shell is made of aluminum alloy and surface treatment, which is resistant to environmental corrosion and ensures the long-term stability of the microphone.
SS 601/603 meets IP55 protection grade, 50mm diameter wind hood and internal rain cover, dust screen, can fully protect the microphone, can withstand the test of wind, rain, snow and other bad weather, and prevent dust damage to the microphone. The SS 601/603 is optimized for 90° incidence and mainly for urban, traffic and industrial noise measurements.

Description
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Description

Specifications

Parameter	Value
TEDS Function	No
Dimensions	1/2inch
Sound Field Type	SS 601:Free field Ⅱtype SS 603:Free field Ⅰtype
Polarization Voltage	/
Frequency Response	SS 601: 3.15Hz – 16kHz ± 2dB 12.5Hz – 10kHz ± 1dB S 603: 3.15Hz – 20kHz ± 2dB 12.5Hz – 10kHz ± 1dB
Dynamic Range	17dB（A）-135dB （1000 Hz 失真<3%）
Noise Floor	17dB（A）
Sensitivity mV/Pa (dBV/Pa)	50mV (-26.0dB) ± 2dB
IEC 61094-4 Type	WS2F
Maximum Output Voltage	5.6V
Output Impedance	<50Ω
Supply Power	2mA-20mA（Typical 4mA）
Pressure Equalization Method	Post-equalization
Connector Type	BNC
Operating Temperature	-30°C to 80°C
Temperature Coefficient	/
Humidity Coefficient	<0.1dB（10%- 90% no condensation）
Relative Humidity	10%- 90% no condensation
Static Pressure Coefficient	/

Specifications

Types of Acoustic Fields	Free Field
Polarization voltages	0V（Prepolarized）
Frequency range	SS 601:3.15Hz – 16kHz ± 2dB 12.5Hz – 10kHz ± 1dB SS 603:3.15Hz – 20kHz ± 2dB 12.5Hz – 10kHz ± 1dB
Dynamic range	17dB（A）-135dB（1000 Hz THD<3%）
Background noise	17dB（A）
Sensitivity mV/Pa(dBV/Pa)	50mV (-26.0dB) ± 2dB
Maximum Output Voltage	5.6V
Output Impedance	<50Ω
Pwer Supply	2mA - 20mA（typical 4mA）
Pressure Equalization Method	Post-equalization
Connection	BNC
Temperature range, operation	-20℃ to 60℃
Temperature range, storage	Temperature：25℃±5℃，Humidity：50%±15%RH（Ensure the long-term stability of the sensor）
Humidity range non condensing	10 - 90% without condensation
Humidity coefficient	<0.1dB

Dimensions

Overall length	278mm
Diarmete	Ø25mm
Gripping part dimensions	Ø23*33mm

The measuring microphones we produce are precision sensors, and all aspects related to production are strictly controlled, including material selection, production processes, testing control, and production environment.

图片1.png After years of continuous improvement, we now use special nickel alloy materials as the core material for the diaphragm. Compared to other alloy materials, it exhibits higher sensitivity, lower distortion rate, and more stable long-term performance. The front body of the microphone is made of stainless steel, ensuring that the entire microphone maintains extremely robust structural characteristics even under various assembly conditions.

We adopt advanced production processes and fully automated precision machining equipment, which significantly reduces the accuracy errors caused by secondary clamping in traditional machining equipment. This greatly enhances the dimensional consistency, geometric accuracy, and overall quality stability of the products, providing reliable technical support for demanding application scenarios.

At the same time, we employ extremely rigorous testing and control measures, conducting quantitative testing on any links that may lead to product quality issues, and implementing test sequence control to prevent skip-station situations. The comprehensive MES control enables all data to be traceable, ensuring a high degree of consistency in sensor quality.

The entire production process of all our microphones is strictly carried out in a dust-free workshop, which can minimize the amount of dust in the air, thus creating a stable and pure working environment for the sensors. This ensures a long and stable lifespan for the sensors and maintains their excellent performance throughout daily use.