PurpleAir Classic Air Quality Monitor
PurpleAir Classic Air Quality Monitor
PurpleAir Classic Air Quality Monitor
PurpleAir Classic Air Quality Monitor
PurpleAir Classic Air Quality Monitor
PurpleAir Classic Air Quality Monitor
PurpleAir Classic Air Quality Monitor

PurpleAir Classic Air Quality Monitor

Regular price
$229.00
Sale price
$229.00

The PurpleAir Classic air quality monitor is the original and popular PurpleAir sensor. It measures real-time PM2.5 concentrations for residential, commercial, or industrial use and can be installed indoors or outdoors. Built-in WiFi enables the air quality measurement device to transmit data to the real-time PurpleAir Map, which is stored and made available to any smart device. 

The PA-II is available in two editions. The SD edition includes an onboard SD logger to record and store data without a WiFi connection.

Please note: This sensor does not come with a power adaptor. Find a suitable OUTDOOR-rated adaptor here or use your own USB power source (any 5V, 1.2 to 2.4 amp adaptor will work).

Quantity must be 1 or more
Shipping calculated at checkout.

  • 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.

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
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:

  1. This device may not cause harmful interference, and
  2. This device must accept any interference received, including interference that may cause undesired operation.

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:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

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.

Customer Reviews

Based on 60 reviews
73%
(44)
8%
(5)
5%
(3)
5%
(3)
8%
(5)
L
Leslie
Data impossible to locate or track. Need to be a programmer to use one of these

Very disappointed in this product. Complexity to get to data would take days. How do I scan a URL code from a map for example. Everything managed by pages and pages of FAQ's Sensor is very good but not useful without data history.

Hi Leslie,

We're very sorry you've run into trouble getting the data from your device. If you send an email to contact@purpleair.com, we would be happy to help you out.

E
Emir Dedović

the best

L
Lynn Lynn
Purple Air

I can't begin to express the great service and working with us on our order-the customer service is one of the best!! Thank you so much! Look forward to work with you folks again.!! Make it a great day :)

R
Richard Rathbun
great to know

it is great to have my own purple air monitor at home, I always know the exact air quality, and it even tells me when a neighbor is lighting up their babecue:-)

J
Jerry Cannella
Very Disapointed

I purchased a new unit when my original one would not come on line.
I have worked on getting the new one online for over a week with no luck.
Your canned guides are not working and neither are your responses.

Hi Jerry,

We're sorry that you have had this much trouble with your new unit. If you're still experiencing this issue, we would be happy to continue troubleshooting over email.