- The latest PurpleAir sensor with built in full color LED ring, and a tap sensor to adjust the brightness by tapping the sensor. This one can be used indoors and out with the included desktop or wall (or pole) mount.
- Tap sensor for adjusting LED brightness, double tap the sensor to adjust LED brightness.
- User replaceable dual Laser Particle Counters (PMS-6003)
- Pressure, Temperature, Humidity & Gas Sensor (BME688)
- Built-in SD card logging and real-time clock for offline data capture
- WiFi connectivity with data stored in the cloud
|3.5 in x 3.5 in x 4 in
(85 mm x 85 mm x 100 mm)
|5V USB Micro, 0.18A continuous, 600mA peak
|Outdoor and indoor use
|Yes, optional microSD
|One (1) year limited warranty
|Tap sensor for adjusting LED brightness, double tap the sensor to adjust LED brightness.
|-40°F to 185°F (-40°C to 85°C)
|Mechanical Shock (powered and unpowered)
|5,000g for 0.5ms
10,000g for 0.2ms
|Laser Particle Counters
Class 1 Laser. A Class 1 laser is safe under all conditions of normal use.
This device contains two particle detectors to provide redundancy and help determine sensor health.
|Range of measurement
|0.3, 0.5, 1.0, 2.5, 5.0, & 10 μm
|50% at 0.3μm & 98% at ≥0.5μm
|0 to 500 μg/m³
|Maximum range (PM2.5 standard)*
|Maximum consistency error (PM2.5 standard)
|±10% at 100 to 500μg/m³ & ±10μg/m³ at 0 to 100μg/m³
|Single response time
|Total response time
|Pressure, Temperature, Humidity, & Gas Sensor
|-40°F to 185°F (-40°C to 85°C)
|300 to 1100 hPa
|Response time (τ63%): 8s
Accuracy tolerance: ±3% RH
Hysteresis: ≤1.5% RH
|Response time (τ33-63%): <1s
|Built-in SD Card Logger & Real-time Clock
|Real-time Clock (RTC)
Extremely accurate I2C real-time clock
|Real-time Clock Battery
Takes microSD cards up to 64GB
|SD Card Format
|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.
Contains Transmitter Module FCC ID: 2AC7Z-ESPWROOM02D
|802.11b/g/n @ 2.4GHz
(WPA2 pre-shared key or open networks)
|802.11 b: +20 dBm
802.11 g: +17 dBm
802.11 n: +14 dBm
|802.11 b: -91 dbm (11 Mbps)
802.11 g: -75 dbm (54 Mbps)
802.11 n: -72 dbm (MCS7)
|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.
I love having minute by minute air quality readings and find it fascinating how weather conditions and local environment affect it. However, the one thing that lets it down for me is having to access the data via a web page.
The constant need to log on makes it a pain to access and on a phone the screen is too small to see things clearly. It would be perfect if there was an app that stored all the data, allowed you to export it and display it clearly and also could link with other devices, either directly or via IFTTT.
We're glad that you are enjoying the Zen and are sorry that you find accessing its data to be a barrier. We appreciate the feedback about an app. We have had similar requests, and it is definitely something that we want to do.
If only I could get it to connect to WiiFi!
We apologize if you've had an issue connecting your device to the internet. We do not want the setup process to be a complication for anyone. If you are still experiencing this issue, please send an email to email@example.com. We would be happy to help you troubleshoot.
nothing has changed
I now own and operate the only 2 air sensors in my county. I had a bit of trouble getting the double-tap to adjust the brightness on this one, but I did use zip ties to mount it instead of screws like I did on the first one I purchased.
I mounted this on a 2nd floor access door on my garage and routed the provided USB wire inside to a stray power source. It may be one of the few outdoor installations where the wire was long enough.
The LED ring is not good outside. I set it to the dimmest setting which is okay for nighttime but it's way too dim for daytime. It needs either an automatic brightness level or an option to http://purple/json interface which I use to get my local data. ("purple" is my local hostname for the monitor.)