- Classic PurpleAir PA-II-SD particulate sensor with microSD logger
- Dual Laser Particle Counters (PMS-5003)
- Pressure, Temperature & Humidity Sensor (BME280)
- Built-in SD card logging and real-time clock for offline data capture
- WiFi connectivity with data stored in the cloud
| Classic PurpleAir dual laser particulate sensor with on-board SD card logger | |
| 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 | Yes, 32GB microSD |
| Warranty | One (1) year limited warranty |
| Laser Particle Counters
Class 1 Laser. A Class 1 laser is safe under all conditions of normal use. |
|
| Manufacturer | Plantower |
|
This device contains two particle detectors to provide redundancy and help determine sensor health. |
|
| 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 |
| Built-in SD Card Logger & Real-time Clock | |
| Real-time Clock (RTC) | DS3231
Extremely accurate I2C real-time clock |
| Real-time Clock Battery | CR2032 3V |
| SD Card | MicroSD card
Takes microSD cards up to 64GB |
| SD Card Format | FAT32 |
| SD Card Data Access | Remove the microSD card by pushing it in to unlatch and then pull out with tweezers. Insert the SD card into a computer to access the csv and data files. More information on working with SD data is available here on the PurpleAir community site. We also provide a software tool to help work with this data here. |
| Wireless Contains Transmitter Module FCC ID: 2AC7Z-ESPWROOM02D |
|
| 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 |
|
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. | |
PurpleAir Classic Plus - Air Quality Monitor
I put up a purpleair classic plus, where I am there are not a lot of monitors so adding another one really helps the community. Other than it just staying "up" and working, there isn't much else to really think about it.
as an air monitoring person, Purple Air is a great tool.
Over the years, we have purchased a total of 4 Purple Air sensors. Right now, they show up on the "Purple Air Map" as gray circles only, because they still aren't communicating real data. We have called customer service once already, unfortunately we will be calling again.
Hello,
We're sorry to hear you've been having trouble. If you've been in contact with our support team and were able to resolve the issue, excellent! If you're still having trouble, please reach back out to us.
It always says “20”. Always.
I live in a farming community with a lot of dust… And near a PennDot storage facility. I would think it would change from time to time.
Hi Laurie,
That is interesting behavior. We'd like to take a look at your sensor's readings. If you don't mind, please send an email to contact@purpleair.com.