BIGTREETECH (BIQU) has introduced the BIQU Panda Sense Pro, an 8-in-1 smart air quality monitor designed for 3D printing environments such as home workshops, maker spaces, and print farms. It continuously measures airborne particles, gases, temperature, and humidity, helping users monitor indoor air quality while printing. The device also integrates with Klipper-based printers and smart home platforms, making it suitable for both standalone monitoring and automated environmental control.
It combines laser particle, NDIR CO₂, and electrochemical formaldehyde sensors to monitor PM2.5, PM10, CO₂, HCHO, eTVOC, AQI, temperature, and humidity in real time. The monitor features a 3.5-inch 480×320 TFT display, 2.4 GHz Wi-Fi with MQTT, USB Type-C power, 24-hour and 30-day data logging, and upcoming app-based remote monitoring. It integrates with Moonraker (Fluidd/Mainsail) and Home Assistant for automation, such as controlling fans or air purifiers based on sensor readings. The enclosure files are open-source, which means you can customize and 3D-print your own housing.
BIGTREETECH Panda Sense Pro specifications:
- Wireless module – ESP32-WROOM-32E
- Display – 3.5-inch 480×320 TFT color screen (non-touch)
- Connectivity – 2.4 GHz Wi-Fi with MQTT cloud sync
- Sensors
- Laser particle sensor for PM2.5 and PM10 (detects down to 0.3μm, dual-frequency sampling, auto-calibration)
- Electrochemical sensor for Formaldehyde (HCHO) with temperature compensation
- NDIR infrared sensor for Carbon Dioxide (CO₂) with auto-calibration
- Temperature and Humidity sensor (a separate small module connects to the main board via a wiring harness)
- Calculated metrics – eTVOC and overall Air Quality Index (AQI)
- Power Supply – 5V/1A via USB Type-C port
- Dimensions
- PCBA + Display – 111.54 x 54.84 x 14.69 mm
- Assembled Unit – 117.12 x 79.78 x 73.67 mm
- Operating Range – 0 to 65°C; 5% to 90% relative humidity
The Panda Sense Pro supports Moonraker integration, allowing sensor data, including PM2.5, PM10, CO₂, eTVOC, HCHO, temperature, humidity, and AQI to be displayed in Klipper web interfaces such as Fluidd and Mainsail. It also supports Home Assistant integration over MQTT, enabling users to create automation rules based on sensor readings, such as controlling ventilation fans or air purifiers if TVOC thresholds are exceeded during a print.
The device stores 24-hour and 30-day historical sensor data and supports local trend visualization. It also includes 2.4 GHz Wi-Fi with MQTT support for network connectivity, with mobile app support planned for a future release. The enclosure design is open-source, and the CAD files are available on GitHub for users who want to 3D-print custom housings.
Previously, we have written about various other air quality monitors like the MoreSense MS-07, the MoreSense MS-06, the Networked Artifacts’ Air Lab, and others, but the Panda Sense Pro looks very similar to the open-source Project Aura design, as both are ESP32-based DIY air quality monitors that use 3D-printed enclosures and support MQTT and Home Assistant. But the Panda Sense Pro is designed specifically for 3D printing environments, with native Moonraker support to expose sensor data in Klipper interfaces, and it integrates multiple air quality sensors and a 3.5-inch TFT display on a single custom PCB.
The Panda Sense Pro is also cheaper and available for $79.99 on AliExpress or the official BIQU store for $89.99. The package includes the main PCB with an ESP32-WROOM-32E module, a 3.5-inch TFT display, a temperature and humidity sensor, a USB-A-to-USB-C power cable, M3 mounting screws, two hex keys (2.0 mm and 2.5 mm), and a BTT rubber duck. It might eventually show up on the company’s Amazon store.
Debashis Das is a technical content writer and embedded engineer with over five years of experience in the industry. With expertise in Embedded C, PCB Design, and SEO optimization, he effectively blends difficult technical topics with clear communication
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