NA43 Set Noise Sensor Outdoor Wind & Rain Cover
The NA43 outdoor protective device safeguards the CRY series microphone set from rain, dust, and wind noise while preventing bird nesting, making it ideal for outdoor noise monitoring.
It is designed for typical outdoor weather conditions and features a removable bird deterrent cone for easy maintenance and calibration. Made from engineering plastic and aluminum alloy with a treated surface, the NA43 offers excellent environmental resistance and long-term stability for the microphone set.
Strong environmental resistance
Easy installation
Provide electrostatic excitation calibration function
IP65 Protection Rating
The NA43 outdoor protective device meets the IP65 protection standard, featuring a 70mm windproof ball and seamless waterproof mesh for comprehensive microphone protection. This design ensures effective dust and waterproof capabilities. In outdoor noise measurements, sensitive microphones and equipment are exposed to diverse weather conditions like rain, wind, and snow. The NA43 device is designed to withstand such harsh elements, safeguarding equipment and data against adverse weather effects effectively.
Noise Monitor Protection in Any Weather.
Completely prevent dust from entering.
No impact from rainwater falling at any angle.
Easy Calibration
The NA43 outdoor protective device consists of a main body component and a windproof cover. The main body is divided into upper and lower sections, with the upper section featuring evenly spaced protrusions at a specific angle to secure the windproof cover. This design effectively directs water away to protect the microphone from moisture ingress. The lower section is intricately designed to accommodate the microphone. Both sections are fastened with threads, facilitating easy manual disassembly for microphone calibration.
Precisely concise structure.
Removable top section for easy microphone calibration.
Wind-resistant And Noise-reducing
The equipment provides effective wind noise reduction and excellent wind resistance. In an environment with a wind speed of 10 meters per second, the combination of the NA43 windproof cover and device structure can provide over 30dB of wind noise reduction. Furthermore, the equipment as a whole can operate normally without damage in an environment with a wind speed of 30 meters per second.
Effectively reduce wind noise.
Effective wind resistance.
System Self-test
The NA43, when used in conjunction with a microphone, enables remote self-diagnostic functionality. In practice, the NA43 emits a 1kHz, 94dB sound pressure level signal using an electrostatic excitation power source for calibrating the microphone to verify system accuracy. When the verification results fall within the tolerance range, the system test results can be considered accurate. However, if there are significant deviations, manual on-site calibration is required to correct them. This feature is fully controlled remotely, reducing the costs of on-site maintenance personnel.
Remote self-check to save on personnel costs.
Accurate self-check data.
Technical Specifications
Technical specification
Reference Incident Direction
90°
IP Protection Class
IP65
Attenuation of Wind Noise
＞30dB@10m/s (Not damaged when wind speed reaches 30m/s）
Primary Materials
engineering plastic, aluminum
Interface Specification
G1 Pipe Thread
Weight
210g
Size
Φ76mm x 299.5mm（±0.2mm）
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At CRYSOUND, we blend precision with passion. With over 25 years of experience in delivering high-quality acoustic measurement products, we are dedicated to providing advanced solutions that empower users to be the champions of audio test and detection solutions.