> **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 # Industrial-grade MODBUS RS485 H2S Sensor - with Waterproof Aviation Connector **Type:** Product page · **SKU:** SS101990863 · **Brand:** [Seeed Studio](https://core-electronics.com.au/brands/seeed-studio-australia) **Page:** https://core-electronics.com.au/industrial-grade-modbus-rs485-h2s-sensor-with-waterproof-aviation-connector.html ([markdown](https://core-electronics.com.au/industrial-grade-modbus-rs485-h2s-sensor-with-waterproof-aviation-connector.html.md)) The S-H2S-01 is an electrochemical detection of solid polymers with a revolutionary innovative technic in electrochemical detection area with widely applications in farming area, industry area and meteorological monitoring. ## Pricing - **Price:** $294.95 (inc GST) — $268.14 AUD, exc GST - **Quantity discounts:** 3+ $257.41 (exc GST) · 5+ $249.36 (exc GST) ## Availability & dispatch - Available with a lead time — expect dispatch between Aug 20 and Aug 24. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SS101990863:1` (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/SS101990863:1.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 Hydrogen sulfide is a common odorous chemical that can have a tremendous effect on health. While a small amount will smell foul, larger concentrated amounts can damage your olfactory system and result in poisoning. There are different methods of producing hydrogen sulfide whether by humans or by nature. Heavy industry produces a lot of hydrogen sulfide, as the process of burning coal, fuel, and natural gases for energy produces a huge amount of hydrogen sulfide and therefore faces the risk of improperly disposing of hydrogen sulfide. The RS485 H2S Sensor S-H2S-01 adopted import sensor chip from Germany has the ability to monitor hydrogen sulfide concentration, air temperature, and humidity at the same time. The sensor transmits data with the help of the RS485 Modbus RTU protocol. The sensor contains excellent features as it can respond to gas or environment with high speed and sensibility, has the ability to tolerate disturbance, adopts compensation algorithm and adjustable standards, all to ensure the accuracy of the sensor. This equipment is powered by 5V DC, which is able to support most sensors in the market. Equipment can be easily integrated into most systems without a complex setup procedure. Solid polymer electrochemical technology is a revolutionary innovation in the field of electrochemical detection. This technology is based on the principle of electrochemical catalytic reaction - different target gases react with catalysts, triggering the sending of a different electrical signal that is directly proportional to the gas concentration. The sensor module is composed of three catalytic electrodes, a solid electrolyte, and gas diffusion holes. The gas reaches the working electrode of the sensor through the diffusion holes, where an electrochemical redox reaction occurs on the porous micro-surface of the electrode; then solid electrolyte conducts electron transfer, and generates a current signal as an output. The current signal can characterize the gas concentration. **Features** - Multiple Uses: Ability to monitor hydrogen sulfide concentration, air temperature, and humidity. - Highly resist of Disturbance: Toleration for extreme temperature and exposure to high levels of ammonia gas. - Application for a variety of areas: Livestock farming, gas leaking detection for heavy industry and atmospheric environmental gas detection, etc. - Customer-friendly: Easy to set up and support adjustment for different uses. **Recommendation for SensorHUB** Sensor Hub Data Logger is an easy-to-deploy 4G cellular station. It uses the MODBUS-RTU RS485 protocol to communicate with sensors and can collect various sensor data simultaneously. Sensor Hub consists of 4 RS485 data channels. With extension hubs / RS485 splitters, it can connect with a maximum of 32 sensors at one time. The data is collected and sent to the cloud (either to the SenseCAP server or the client's private server) via 4G/3G/2G (as shown below). ![](https://core-electronics.com.au/media/wysiwyg/product_images/SS101990863-desc-1.jpg) Designed with industry standards and IP66 rated, Sensor Hub is suitable for outdoor and harsh environments, resistant to UV, rain, and dust, etc. GNSS is embedded for location tracking. Sensor Hub is also equipped with 10MB onboard memory, to store more than 700,000 measurements locally in case of a bad connection. **Applications** - Livestock farming (pig houses, chicken coops, cattle herding, etc.) - Smart public toilet ammonia and odor monitoring - Ammonia monitoring in landfills and sewage treatment plants - Gas leak detection for heavy industry - Atmospheric environmental gas detection - Other sensor applications **Specifications** - Product model: S-H2S-01 - Supply Voltage: 4.5 ~ 5.5V DC (recommended 5V power supply). - Supported Protocol: MODBUS-RTU RS485 - IP Rating: IP65 (The equipment should be protected from direct sunlight and rain over long periods of time). - Operating Temperature: -40°C to 50°C (best operating temperature 20 to 35 °C). - Operating Humidity: 15 to 95% RH (non-condensation) (best operating humidity 50%RH). - Ambient Pressure: Atmospheric pressure ±10%. - Cable Length: 2 meters **Measurement Parameters** - Measurement:Measurement accuracy:Resolution - Ammonia:0~100 ppm:± 5% F.S:0.1 ppm - Temperature:-40~50 °C:± 0.5 °C:0.1 °C - Humidity:10~95 %RH:± 5%:0.1 %RH **Power** - Operating Current: 6mA(Max,5V DC) **Performance reference** - Warm-up Time\[1\]: 5minutes \[2\] - Poll Rate\[3\]: 1 seconds - Response\[4\]: 30 seconds \[1\] The time from when the sensor is powered on to when the data is read. Note the parameter when the sensor is powered on. \[2\] If started in an environment with clean air it requires less time \[3\] The measurement data update interval, after the power-up warm-up time, if the power supply continues, the sensor periodically updates the reading at this interval. \[4\] T90<30s **Part list** - Sensor x1 - Cap x4 - Fixation equipment x2 - Self-drilling Screw x4 **Documentations** - [H2S Sensor Datasheet](https://core-electronics.com.au/attachments/uploads/RS485-H2S-Sensor-Datasheet.pdf) ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_2864.jpg)