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PurpleAir PA-II-SD
PurpleAir PA-II-SD
PurpleAir PA-II-SD
PurpleAir PA-II-SD

PurpleAir PA-II-SD

Regular price
$279.00
Sale price
$279.00
Shipping calculated at checkout.
Quantity must be 1 or more

The PA-II-SD is an air quality sensor that measures real-time PM2.5 concentrations for residential, commercial, or industrial use. Built-in WiFi enables the sensor to transmit data to the PurpleAir map, where it is stored and made available to any smart device. For locations with limited or no WiFi access, the PA-II-SD incorporates an SD card and real-time clock, allowing the sensor to record and store data locally.*

Dimensions 3.5 in x 3.5 in x 5 in
(85 mm x 85 mm x 125 mm)
Color White
Intended Use Outdoor and indoor use
WiFi Yes
Internal Storage Yes, 16GB micro SD
Warranty One (1) year limited warranty

*Internal data stored on the micro SD card cannot be uploaded to the PurpleAir map.

General
Dimensions 3.5 in x 3.5 in x 5 in
(85 mm x 85 mm x 125 mm)
Sensor weight
with power supply
12.4 oz (352 g)
25.0 oz (709 g)
Power supply length 17 ft (5 m)
Color White
Power Supply
Weight 12.6 oz (357 g)
A/C input 100-240V AC, 50/60Hz, 1.5A
A/C output 5V DC, 3A
Sensor input 5V DC, 0.18A continuous, 600mA peak
Weather resistance IP68
Plug type 2 Pins, Type A (USA)
Wireless

Contains Transmitter Module FCC ID: 2AC7ZESPWROOM02

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.

Laser Particle Counters
Type (2) PMS5003
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 Litre
 Single response time ≤1 second
 Total response time ≤10 seconds
Pressure, Temperature, & Humidity Sensor
Type BME280
Temperature range -40°F to 185°F (-40°C to 85°C)
Pressure range 300 to 1100 hPa
Humidity Response time (τ63%): 1 s
Accuracy tolerance: ±3% RH
Hysteresis: ≤2% RH
SD Card Reader & Real-time Clock
Real-time Clock (RTC) DS3231
SD Card 16GB micro SD card included
takes micro SD cards up to 64GB
SD Card Format FAT32
SD Card Data Access Remove micro SD card with tweezers & connect to computer to download csv data files