Overview
The Enviro Test Construct Noise Module is a compact and efficient sound detection sensor designed for embedded systems. It measures sound levels from 0 to 130 dB with high accuracy and supports both A and C frequency weighting. With its UART TTL interface, it integrates seamlessly into industrial and consumer applications. Its small size, low power operation, and fast response time make it a reliable solution for real-time noise monitoring.
Features
- Compact 5.5 × 4 × 2.2 cm design, ideal for embedded devices.
- Supports A and C frequency weighting for versatile noise measurement.
- Wide measuring range of 0–130 dB with ±1.5 dB accuracy.
- Fast (0.5s) and slow (1.5s) response time options.
- Operates on low voltage (3.0V – 5.0V), compatible with lithium and dry batteries.
- Easy testing via USB to TTL serial port module.
- Standard UART output interface for seamless integration.
- Durable build with PVC and metal material for long-term use.
Technical Specifications
| Frequency Weighting | A weighting, C weighting (optional) |
| Measuring Range | 0–130 dB |
| Noise Accuracy | ±1.5 dB |
| Response Time | Fast: 0.5s / Slow: 1.5s (optional) |
| Working Voltage | 3.0V – 5.0V |
| Power Consumption | 30 mA @ 3.3V |
| Output Interface | Standard UART (TTL level) |
| Operating Temperature | -20°C to 60°C (-4°F to 140°F) |
| Operating Humidity | 0%RH – 80%RH |
| Interface Description | GND, TXD, RXD, INT, RST, VCC |
| Material | PVC and Metal |
| Dimensions | 55 mm × 40 mm × 22 mm |
| Single Package Size | 55 mm × 40 mm × 22 mm |
| Packaging Details | Retail color box, carton packing |
| Single Gross Weight | 0.030 kg (0.066 lb) |
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