- Classic PurpleAir PA-II particulate sensor
- Dual Laser Particle Counters (PMS-5003)
- Pressure, Temperature & Humidity Sensor (BME280)
- WiFi connectivity with data stored in the cloud
| Classic PurpleAir dual laser particulate sensor | |
| Dimensions | 3.5 in x 3.5 in x 5 in (85 mm x 85 mm x 125 mm) |
| Color | White |
| Power requirements | 5V USB Micro, 0.18A continuous, 600mA peak |
| Intended Use | Outdoor and indoor use |
| WiFi | Yes |
| Expansion Port | No |
| Internal Storage | No |
| Warranty | One (1) year limited warranty |
| Laser Particle Counters
Class 1 Laser. A Class 1 laser is safe under all conditions of normal use. |
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| Manufacturer | Plantower |
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This device contains two particle detectors to provide redundancy and help determine sensor health. |
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| Type | PMS-5003 (2) |
| Range of measurement | 0.3, 0.5, 1.0, 2.5, 5.0, & 10 μm |
| Counting efficiency | 50% at 0.3μm & 98% at ≥0.5μm |
| Effective range (PM2.5 standard)* |
0 to 500 μg/m³ |
| Maximum range (PM2.5 standard)* | ≥1000 μg/m³ |
| Maximum consistency error (PM2.5 standard) | ±10% at 100 to 500μg/m³ & ±10μg/m³ at 0 to 100μg/m³ |
| Standard Volume | 0.1 liter |
| Single response time | ≤1 second |
| Total response time | ≤10 seconds |
| Pressure, Temperature, & Humidity Sensor | |
| Manufacturer | BOSCH |
| Model Number | BME280 |
| Temperature range | -40°F to 185°F (-40°C to 85°C) |
| Pressure range | 300 to 1100 hPa |
| Humidity | Response time (τ63%): 1s Accuracy tolerance: ±3% RH Hysteresis: ≤2% RH |
| Wireless Contains Transmitter Module FCC ID: 2AC7Z-ESPWROOM02D |
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| Wireless Networks | 802.11b/g/n @ 2.4GHz (WPA2 pre-shared key or open networks) |
| Certificates | FCC/CE/TELEC/SRRC |
| Tx Power | 802.11 b: +20 dBm 802.11 g: +17 dBm 802.11 n: +14 dBm |
| Rx Sensitivity | 802.11 b: -91 dbm (11 Mbps) 802.11 g: -75 dbm (54 Mbps) 802.11 n: -72 dbm (MCS7) |
| Antenna Type | 2 dBi on-board PCB antenna |
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FCC Compliance Statement (Part 15.19) This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
Warning (Part 15.21) Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. FCC Interference Statement (Part 15.105 (b)) This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:
To comply with FCC/IC RF exposure limits for general population / uncontrolled exposure, the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. | |
As wildfire smoke and other pollutants in our air increase, I was interested in helping out in any way possible. I noticed that there were no monitors reporting in my area. This was my solution. It seems a bit pricey, and the setup instructions are almost totally useless, but now when I go to the air quality maps online, my personal station shows up. I guess there's an app that I could install to access the local data more directly, but that's way over my head.
The PurpleAir Classic device was easy to install, and offers convenient web charting of data. Downloading historical data could be made much simpler. A “mobile unit” option would also be helpful (useful for periodic monitoring of several sites).
It is nice to see a dot that represents our location on the purple air map. We can see when wildfire smoke (in the summer) and industrial emissions (any time) are an issue.
To me the temperature, humidity, and air pressure numbers are extremely useful, in addition to the air quality data. I don't have close neighbors, but I can compare sensor data from 5 or so miles away to get a good overview of my area.
We are in fire season in our arid west location. Keeping track of AQI is helpful in knowing when we can keep our windows open, and when it is best not too. Just looking at smoke haze or guessing from the smell turns out not to be an accurate metric - better to track the actual AQI. Shipment from PurpleAir was very quick, installation was easy and the unit works perfectly.