SPECIFICATIONS

Brand Name: UICPAL

High-concerned chemical: none

Material: Polymer

Origin: Mainland China

Output: Analog Sensor

Theory: Capacitance Sensor

Type: Sound Sensor

is_customized: Yes

Decibel Meter Noise Sensor Module Tester Transmitter Output TTL RS485 0-3V 30-120dBA 20-12.5kHz High Precision

Product Overview:

Noise module, mainly according to the national standard GB/T 3785.1-2010“Electroacoustics, sound level meter part 1: Specification” and the international standard IEC 61672-1:2002 to 2 class X sound level meter requirements design, mainly used for environmental noise, traffic noise, workplace noise, construction noise and social noise of all kinds of real-time measurement of noise. With this module, customers no longer need to complex noise signal processing and trouble, can focus on areas of expertise, faster to create value for customers.

PCB Board Mounting Mode:

30-120 dba wide range, 20-12.5 khz wide frequency measurement.

High Performance prepolarized back electret capacitive microphone with wide dynamic range and stable performance.

Output interface TTL or RS-485 factory optional.

With slow and fast measurement of two modes, to meet the needs of different customers.

Power Supply 4.5 v ~ 5.5 VDC, 10 ~ 28VDC optional.

Data frame format definition:

Using the Modbus-RTU protocol, the format is as follows:

Initial structure ≥4 bytes in time

Address code = 1 byte

Function code = 1 byte

Data area = N bytes

Error Check = 16-bit CRC code

Time to end structure ≥4 bytes

Address Code: Default 01.

Function code: this module only uses the function code 0x03(read register data) .

Data area: Data area is specific communication data, note that 16bits data high byte in front!

CRC code: two-byte checksum code.

Main Parameters: