PurpleAir - Model PA-II-FLEX -Laser Pollution Sensor

For locations with limited or no WiFi access, the PA-II-FLEX PM2.5 measurement device incorporates real-time clock and SD card capabilities, allowing the sensor to record and store data on a microSD card.

The PA-II-FLEX features user-replaceable PMS6003 laser counters and there is an expansion port that allows easy swapping of the temperature sensors (yes, there are two) or expanding the capabilities of the sensor in the future.

The power option includes a specialized, high-quality outdoor (IP68 rated) USB power supply with 17 feet of cable to safely power your sensor outdoors.

• New generation PurpleAir particulate sensor with built in RGB LED
• User replaceable dual Laser Particle Counters (PMS-6003)
• Pressure, Temperature, Humidity & Gas Sensor (BME680)
• Pressure, Temperature & Humidity Sensor (BME280)
• Build in SD card logging and real-time clock for offline data capture
• High Quality IP68 Power Supply
• WiFi connectivity with data stored in the cloud

• 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; Yes
• Internal Storage; Yes, 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-6003 (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, & Gas Sensor

• Manufacturer; BOSCH
• Model Number; BME680
• Temperature range; -40°F to 185°F (-40°C to 85°C)
• Pressure range; 300 to 1100 hPa
• Humidity; Response time (τ63%): 8s
• Accuracy tolerance: ±3% RH
• Hysteresis: ≤1.5% RH
• Gas; Response time (τ33-63%): <1s
• Resolution: ±0.08%

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 (included)
• 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.

Outdoor Power Supply

• Manufacturer; GlobTek, Inc
• Model Number; GTM91120-1507.5-2.5-P2
• Weight; 12.6oz (357g)
• Input; 100-240V AC, 50/60Hz, 1.5A
• Output; 5V USB Micro, 3A (15W)
• Power supply length; AC side: 12 feet, DC side: 5 feet
• Weather resistance; IP68
• Plug type; 2 Pins, Type A (USA)

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