Noise Sensor Transmitter Probe RS485 Multifunctional So

Feature:
1. MULTIFUNCTIONAL DESIGN: The noise sensor transmitter probe is a digital, modular multifunctional sound level meter, providing accurate and reliable noise monitoring in various contexts.
2. PROFESSIONAL TECHNOLOGY: The device adopts digital signal processing chips and digital detection technology ensures high reliability, excellent stability, and a wide dynamic range.
3. WIDE APPLICATION: Suitable for industrial noise measurement in various machines, vehicles, ships, appliances, and environmental noise, labor guard, and industrial hygienic measurements.
4. PRECISE PERFORMANCE: Ideal for use in a variety of industrial noise measurement settings, with a frequency range of 20Hz to 12.5kHz, a response time of 200ms, and a microphone size of 0.5 inches.
5. STURDY CONSTRUCTION: Made of premium aluminum alloy material, high strength, not easy to crack and damage, IP55 protective level, ensuring long lasting durability.
Specification:
Item Type: Noise Sensor Transmitter Probe
Size: Length: approx. 292mm/11.5in
Power Supply: DC 5V
Output Form: RS485 (Modbus)
Measurement Range: 30-130dB (A)
Sensitivity: -38±3dB (or 12.6mv/Pa)
Resolution: 0.1dB
Accuracy: ±3dB, calibrated at 23±5℃ ambient temperature, frequency weighting complies with IEC 61672 type 2 standard, calibrated under the condition of input signal at 94dB (1kHz).
Frequency Range: 20Hz to 12.5kHz
Response Time: 200ms, time response simulates human ear response
Calibrator: for BK (for Bruel for Kjaer company), multifunctional sound calibrator, model 4231
Microphone: Electret microphone
Directivity: Omnidirectional
Microphone Size: 0.5 inch
Load Capacity: Impedance ≤350Ω for current output when powered by DC12V, ≤900Ω for current output when powered by DC24V, impedance ≥1KΩ for voltage output
Maximum Power Consumption: 500mW
Material: Aluminum alloy
Operating Environment: Temperature -40℃ to 80℃, humidity ≤100%RH non-condensing
Protective Grade: IP55
Troubleshooting: The meter display value is incorrect during output. It may be due to wiring issues or communicating port failure. Please check if the wiring is correct and secure, if the port is occupied, and if the port settings are correct.
Wire Order
Wire Color
Output Signal
RS485
Red
Power Positive
Black
A+/TX
Yellow
B-/RX
Green
Power Negative
Weight: Approx. 418.00g / 14.74oz.

Package List:
1 x Noise Sensor
1 x Cable
1 x User Manual
Note:
1. Please check if the packaging is intact and verify if the product model matches the selected one.2. Do not connect the wires while powered on, only power on after confirming the wiring is correct.3. The length of the sensor wire will affect the product's output signal, so do not modify the product randomly during use.4. The sensor is a precise device, users should not disassemble it by themselves, or let pointed objects or aggressive liquids touch the sensor surface to avoid damaging the product.