--- product_id: 99668048 title: "ECOWITT WH41 PM2.5 Air Quality Sensor Monitor Indoor Outdoor - Accessory Only, Can Not Be Used Alone" brand: "ecowitt" price: "FREE" currency: TND in_stock: false reviews_count: 8 url: https://www.desertcart.tn/products/99668048-ecowitt-wh41-pm2-5-air-quality-sensor-monitor-indoor-outdoor store_origin: TN region: Tunisia --- # Multi-Location Support App Connectivity PM2.5 Sensor ECOWITT WH41 PM2.5 Air Quality Sensor Monitor Indoor Outdoor - Accessory Only, Can Not Be Used Alone **Brand:** ecowitt **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 🌟 Elevate Your Air Quality Game! ## Quick Answers - **What is this?** ECOWITT WH41 PM2.5 Air Quality Sensor Monitor Indoor Outdoor - Accessory Only, Can Not Be Used Alone by ecowitt - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/99668048-ecowitt-wh41-pm2-5-air-quality-sensor-monitor-indoor-outdoor) ## Best For - ecowitt enthusiasts ## Why This Product - Trusted ecowitt brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Connect & Control:** Seamlessly integrates with your smartphone for instant updates. - • **Historical Insights:** Access detailed graphs and historical data for informed decisions. - • **Weatherproof Design:** Durable and reliable for both indoor and outdoor use. - • **Multi-Sensor Capability:** Monitor multiple locations with ease using one gateway. - • **Breathe Easy, Live Smart:** Stay informed about your air quality in real-time. ## Overview The ECOWITT WH41 PM2.5 Air Quality Sensor Monitor is an advanced accessory designed to measure PM2.5 concentration levels in the air. It requires a GW1100 Wi-Fi gateway for connectivity and provides real-time data through the WS View Plus App. With features like historical data tracking, multi-location support, and a weatherproof design, this sensor is perfect for ensuring optimal air quality in various environments. ## Description Features:1.View PM 2.5 current concentration on our free WS View Plus APP after the WIFI configuration(needs to work with GW1100 WIFI gateway - sold separately).2.View Current / 24H average AQI / 6 grades AQI color bar3.The GW1100 Gateway(sold separately) supports MAX 4 PM2.5 Sensors(with WS View V1.4.6 or above).4.Battery power condition icon on the APP.5.Rechargeable batteries and solar panel as backup power included.Specifications:Line of sight wireless transmission (in open air): 300feetFrequency: 915 MHzUpdate Rate: 10 minutesMeasure rang:0~999ug/m3Accuracy(at 25°C ±5°C):>100ug/m3, ±15%;<100ug/m3, ±15ug/m3;Resolution: 1ug/m3Note①About FrequencyPlease Note that all the devices we sell in .com(US/CA/MX) require 915 MHZ. If you are outside North America, please refer to the recommended requency in picture and be cautious to order.WH41 Aire quality sensor Works with WH0290 Air Quality Monitor Console at same frequency(sold separately).②Outdoor InstallationPlease use 4 screws to fix the base of the sensor on a flat surface. The sensor should not be installed so that it is exposed directly to outdoor rain. It is recommended to place it under porch in the outer side or with its top covered and raised 1m/3.3ft above ground level , so that each day a few hours direct sun light or scattered light reaching to the sensor for charging up the batteries. ③OtherThe sensor is sensitive to liquid droplets - rain/fog/sprinkling. When the Dew Point is close to the outdoor temperature(T - D ≤ 2C), the PM2.5 reading will be very high(which is not the real condition). If mind, please don't purchase.The sensor needs to be recharged every two week.Package List:1x PM2.5 Sensor(No display)1x USB Cable1x User Manual2x Rechargeable Batteries ## Features - 【Know Your Air】: This sensor measures PM2.5 concentration in the air(with high quality HPM Series Particle Sensor) and allows you to take timely measures to keep the air quality within safe levels[Accessory Only, Can Not Be Used Alone] - 【Live Data on APP】: Requires a GW1100 Wi-Fi gateway(sold separately) to connect to WiFi, after the WIFI configuration, the current PM2.5 concentration / real-time and 24 hours average AQI / air quality levels indicator(Good, Moderate, Poor, Unhealthy, Severe and Hazardous)can be viewed directly on the WS View Plus App. - 【Graph & History Records on the Website】: Supported to upload to our free Ecowitt Weather server(ecowitt.net) to view the PM2.5 and AQI data graph and download the history records on the website; it's recommended to add a shortcut of the website on the home screen of your phone for quick access. - 【Support Monitoring Multi Locations】: The GW1100 Gateway(sold separately) supports MAX 4 WH41 PM2.5 Air Quality Sensors. Note: Please download the latest WS View Plus App and update the firmware to V1.4.6 to add multi-channels sensors; each new sensor will be recognized as a new channel according to the Power-on sequence. - 【Indoor & Outdoor Air Quality Detector】: IPx4 weatherproof design, suitable to use at home, office, car and other environmental testing; monitor the air quality anytime anywhere to be away from harmful of PM2.5. ## Product Details - **Brand:** ECOWITT - **Power Source:** Battery Powered - **Color:** PM2.5 Air Quality Sensor - **Alarm:** Audible - **Operating Humidity:** 95 percent - **Upper Temperature Rating:** 5 Degrees Celsius - **Manufacturer:** ECOWITT - **UPC:** 711639641242 ## Images ![ECOWITT WH41 PM2.5 Air Quality Sensor Monitor Indoor Outdoor - Accessory Only, Can Not Be Used Alone - Image 1](https://m.media-amazon.com/images/I/61vUI7N90jL.jpg) ![ECOWITT WH41 PM2.5 Air Quality Sensor Monitor Indoor Outdoor - Accessory Only, Can Not Be Used Alone - Image 2](https://m.media-amazon.com/images/I/61Y+dLaWQLL.jpg) ![ECOWITT WH41 PM2.5 Air Quality Sensor Monitor Indoor Outdoor - Accessory Only, Can Not Be Used Alone - Image 3](https://m.media-amazon.com/images/I/61zvxA9tMaL.jpg) ![ECOWITT WH41 PM2.5 Air Quality Sensor Monitor Indoor Outdoor - Accessory Only, Can Not Be Used Alone - Image 4](https://m.media-amazon.com/images/I/61YSPy-hT-L.jpg) ![ECOWITT WH41 PM2.5 Air Quality Sensor Monitor Indoor Outdoor - Accessory Only, Can Not Be Used Alone - Image 5](https://m.media-amazon.com/images/I/61FoBnuK6uL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Watch out Nest - here comes Ecowitt *by N***F on June 2, 2019* PM2.5 particle sensor works well. It communicates with the WIFI gateway and current reading can be viewed in the WSView App. It is one of the sensors in the Ecowitt Ecosystem of sensors, others are temperature and humidity, rain, wind, soil.The sensor is solar powered, with a battery backup. Its very simple to setup and start using. The packaging and product itself seem a little cheap, product seems to be targeted for the Asian market.However, the real standout in this product family is the web portal. You register to get an account, and then one can see the history of all the Ecowitt connected sensors. The data is plotted as graphs and there is no additional charge. I was very impressed by how well this work. I have a network of Nest Thermostats and temperature sensors that run my HVACs. The "Nest knows best what you need" attitude is stifling to me. I prefer the Ecowitt approach where your data is available to you to look at, understand and learn from. ### ⭐ Failed after two month *by S***N on August 16, 2020* It worked fine for two month and then got stuck at the same reading, contacted Ecowitt waiting to see if they replace the unit for me. ### ⭐⭐⭐⭐⭐ Solar recharging works, reliable *by G***0 on July 1, 2022* I put 4 NiMH batteries in it, and put it outside, on a beam under a deck, so it is exposed to the air and somewhat but not entirely shielded from rain. I had to screw it to the beam to keep it from blowing off, and it did survive a few falls from just over 2m. I haven't touched it for over a year, meaning not changing the batteries, and it's still sending reports. The battery report is 4/5, which I interpret as 1.2V, and rechargeable batteries are like that. I'm receiving the data with rtl_433, not the ecowitt gateway.As for accuracy, I can't really tell, but the readings make sense; it goes up when I can smell smoke from a nearby woodstove, and when there was wildfire smoke perhaps last summer (so bad that smoke alarms where going off in town). The only problem is that I see elevated readings overnight just before dawn when the humidity is super high, and I suspect that's falsing from incipient dew vs particulates.So overall, while not a lab-grade instrument (an unreasonable request for this price), it does what it says on the tin, and it's worked for over a year, where works means not only reporting PM2.5 but keeping the batteries charged. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/99668048-ecowitt-wh41-pm2-5-air-quality-sensor-monitor-indoor-outdoor](https://www.desertcart.tn/products/99668048-ecowitt-wh41-pm2-5-air-quality-sensor-monitor-indoor-outdoor) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-29*