> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # Gravity: Analog Sound Level Meter **Type:** Product page · **SKU:** SEN0232 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia) **Page:** https://core-electronics.com.au/gravity-analog-sound-level-meter.html ([markdown](https://core-electronics.com.au/gravity-analog-sound-level-meter.html.md)) This is an Arduino compatible sound level meter(also known as decibel meter, noise meter). It uses instrument circuit, low noise microphone, which make it accurately... ## Pricing - **Price:** $66.25 (inc GST) — $60.23 AUD, exc GST - **Quantity discounts:** 6+ $57.22 (exc GST) · 12+ $54.81 (exc GST) ## Availability & dispatch - Available with a lead time — expect dispatch between Sep 07 and Sep 09. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SEN0232:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/SEN0232:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description This is an Arduino compatible sound level meter(also known as decibel meter, noise meter). It uses instrument circuit, low noise microphone, which make it accurately measure the sound level of the surrounding environment. It can be applied to environmental noise testing, such as highway noise monitoring station, bedroom noise monitoring. In our environment, there are all kinds of sounds, some of which are noise. With the development of human civilization, the quiet environments are less and less, but more and more noisy environments instead. Staying in the noise for long time will have an impact on hearing, which is bad for health. ## ![](https://core-electronics.com.au/attachments/localcontent/SEN0232-001_2170870ef38.jpg) Arduino DIY Decibel Meter Sound level meter (also known as the decibel meter, noise meter) is a basic noise measurement instrument. We have launched a sound level meter, which is compatible with Arduino, plug-and-play. It can accurately measure the sound level of the surrounding environment. This product uses instrument circuit, low noise microphone, which make it highly precious. It supports 3.3~5.0V wide input voltage, 0.6~2.6V voltage output. The decibel value is linear with the output voltage, which leads to a simple conversion, without complex algorithm. The connector is plug-and-play, without welding, so this product can be easily used in your application. ## Arduino Decibel Meter Wiring ## ![](https://core-electronics.com.au/attachments/localcontent/SEN0232-002_47832c9065d.jpg) Sound level meter is widely used in environmental noise detection, such as highway noise monitoring station, room noise monitoring and so on. It’s time for you to DIY a sound level detector to protect your hearing. **Attention:** The black film on the microphone is a sensitive component, do not touch it with fingernails or other sharp objects. Do not place this module on the surface of the conductor or the semiconductor, otherwise it will short the microphone’s pins. It is recommended to place this module on a dry insulator’s surface or fix with nylon columns to hang in the air. ## FEATURES - High Precision: use instrument circuit, low noise microphone - Wide Voltage Input:3.3~5.0V - Simple Conversion: linear analog output, 0.6~2.6V linear correspondence 30~130dBA, no complex algorithm is required - Easy to Use: plug and play, without soldering ## Specification - Measuring Range: 30dBA ~ 130dBA - Measurement Error: ±1.5dB - Frequency Weighted: A Weighted - Frequency Response: 31.5Hz ~ 8.5KHz - Time Characteristics: 125ms - Input Voltage: 3.3 ~ 5.0V - Input Current: 22mA@3.3V, 14mA@5.0V - Output Voltage: 0.6 ~ 2.6V - Module Size: 60mm \* 43mm / 2.37in\*1.68in Documents- [Product wiki](https://www.dfrobot.com/wiki/index.php/Gravity:_Analog_Sound_Level_Meter_SKU:SEN0232) - [Layout](https://core-electronics.com.au/attachments/localcontent/SEN0232_Layout_55668d90c6b.pdf) ## Parts List - Analog Sound Level Meter x1 - Gravity Analog Cable 3Pin x1 ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/s/e/sen0232-6w4a9955-900x600.jpg)