> **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 EMG Sensor by OYMotion **Type:** Product page · **SKU:** SEN0240 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia) **Page:** https://core-electronics.com.au/gravity-analog-emg-sensor-by-oymotion.html ([markdown](https://core-electronics.com.au/gravity-analog-emg-sensor-by-oymotion.html.md)) This EMG sensor is launched by the cooperation of DFRobot and OYMotion, which can detect sEMG to reflect muscle and neural activities of human. This sensor integrates... ## Pricing - **Price:** $83.10 (inc GST) — $75.55 AUD, exc GST - **Quantity discounts:** 6+ $71.76 (exc GST) · 12+ $68.75 (exc GST) ## Availability & dispatch - In stock, ships same business day if ordered before 2PM (Australia/Sydney). - We can dispatch 2 today, and up to 300 more in 8–12 days. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SEN0240:1` (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/SEN0240:1.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 EMG sensor was launched by DFRobot and OYMotion, it can detect sEMG to reflect muscle and neural activities of humans. This sensor integrates a filtering circuit and an amplifier circuit. It amplifies minimal sEMG within ±1.5mV 1000 times and depresses noises (especially power frequency interference) by differential input and analog filter circuit. The output signal is analog, which takes 1.5V as the reference voltage. The output voltage range is 0~3.0V. The signal strength depends on the intensity of muscle activities. The output signal waveform indicates the muscle activity and contributes to analysing and researching the sEMG. Specifically, we can use Arduino as a controller to detect muscle activities, e.g. check whether the muscle is tense; the muscle strength, etc. This is an active induction sensor that can provide high-quality signal collection and it is easy to use. Only simple preparations are needed to apply the module for either static or dynamic areas. A dry electrode is applied to the module and good-quality signals are available even without conductive gel. Compared with disposable conductive gel needed by medical electrodes, it is more convenient to use and extend its long-life service. Therefore, it is more suitable for most users. Measurements with an analog EMG sensor are noninvasive and convenient and this can be applied in human-computer interactions. With the development of microcontrollers and integrated electric circuits, EMG circuits and sensors have not been applied to traditional medical muscle detection research but control systems. ![](https://core-electronics.com.au/attachments/localcontent/SEN0240-1_60059ddf46b.jpg) Connect EMG Sensor with Arduino Attention: 1. The supply voltage range is 3.3~5.5V; The supply current should not be less than 20mA; The ripple current and disturbance current should be as low as possible. A stabilized DC voltage is recommended. 2. The effective spectrum range is 20Hz~500Hz, and the ADC converter which has higher than 8-bit resolution and 1 kHz frequency is recommended to take samples and digitise to keep the original information. 3. Placing the metal dry electrode should be consistent with the direction of the muscle. 4. The product is not a professional medical device and cannot diagnose and cure disease as an assistant device. ### Features - Metal Dry Electrode: long life, easy to use - Differential input, high common mode rejection ratio - Low power consumption - Single power supply ### Specification **Signal Transmitter Board** - Supply Voltage: +3.3V~5.5V - Operating Voltage: +3.0V - Detection Range: +/-1.5mV - Electrode Connector: PJ-342 - Module Connector: PH2.0-3P - Output Voltage: 0~3.0V - Operating Temperature: 0~50°C - Size: 22mm\*35mm (0.87inch\*1.38inch) **Dry Electrode Board**- Electrode Connector: PJ-342 - Wire Length: 50cm(19.69inch) - Plate Size: 22 \* 35 mm (0.87\*1.38inches) - weight: 36g ### **Documents** [Product Wiki](https://www.dfrobot.com/wiki/index.php/Analog_EMG_Sensor_by_OYMotion_SKU:SEN0240) [More Documents](https://www.dfrobot.com/wiki/index.php/Analog_EMG_Sensor_by_OYMotion_SKU:SEN0240#More_Documents) ### Parts List - EMG Dry Electrode Board x1 - Wrist Belt x1 - Electrode Cable x1 - EMG Signal Transmitter Board x1 - Gravity Analog Cable 3Pin x1 ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/s/e/sen0240-1.jpg)