With the PA-I-Indoor’s full-color LED, the resulting glow indicates air quality at a glance from across the room. Sporting a simple design that sits comfortably on a counter or tabletop, the PA-I-Indoor measures real-time PM2.5 concentrations. Built-in WiFi enables the PM2.5 indoor air quality sensor to transmit data to the PurpleAir map, where it is stored and made available to any smart device.
| Dimensions | 4.25 in x 3 in x 2.25 in (108 mm x 67 mm x 57 mm) |
| Color | Translucent white with real-time AQI colored LED light |
| Intended Use | Indoor use only |
| WiFi | Yes |
| Internal Storage | No |
| Warranty | One (1) year limited warranty |
| General | |
| Dimensions | 4.25 in x 3 in x 2.25 in (108 mm x 67 mm x 57 mm) |
| Sensor weight | 6.4 oz (181 g) |
| Power supply length | 3.2 ft (1 m) |
| Color | Translucent white with real-time AQI colored LED light |
| Power Supply | |
| 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 | Indoor use only |
| Plug type | 2 Pins, Type A (USA) |
| Wireless Contains Transmitter Module FCC ID: 2AC7ZESPWROOM02 |
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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. | |
| Laser Particle Counters | |
| Type | (1) PMS1003 |
| 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 |