Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Detection Gases | VOC, CO2, Formaldehyde (HCHO) |
| Communication Interface | UART / TTL |
| Operating Voltage | 5V DC |
| CO2 Measurement Range | 400 - 5000 ppm |
| TVOC Measurement Range | 0 - 9.99 mg/m³ |
| Formaldehyde Range | 0 - 1.00 mg/m³ |
| Response Time | < 60 seconds |
| Operating Temperature | -10°C to 50°C |
| Dimensions | 32mm x 20mm x 8mm |
| Warm-up Time | Approx. 3 minutes |
Anonymous
Mar 27, 2026
Rating: 3/5
Works but requires some coding knowledge
The hardware is fine, but if you aren't familiar with parsing serial data, you might struggle initially. Once configured, it provides good insights into room air quality.
Anonymous
Mar 26, 2026
Rating: 5/5
Compact and reliable
Small footprint makes it easy to fit into tight enclosures. Documentation was clear enough to get started quickly. Highly recommend for DIY air quality monitors.
Anonymous
Mar 12, 2026
Rating: 4/5
Good sensitivity, needs calibration time
The sensor works well once it warms up. Make sure to let it run for at least 3 minutes before taking serious readings. The formaldehyde detection is a nice bonus feature for new furniture testing.
Anonymous
Mar 09, 2026
Rating: 5/5
Excellent data consistency
Running this 24/7 connected to a Raspberry Pi. The data stream is consistent and hasn't drifted much over the last month. Very satisfied with the build quality.
Anonymous
Mar 07, 2026
Rating: 5/5
Perfect for my smart home project
This module integrated seamlessly with my ESP32 setup. The UART communication is stable, and the CO2 readings seem accurate when compared to my reference meter. Great value for a 3-in-1 sensor.
Anonymous
Mar 06, 2026
Rating: 4/5
Solid performance for the price
I've been using this to monitor my office ventilation. The VOC spikes correctly detect when I use cleaning sprays. Only minor issue is the cable length could be longer.
Q: Can this sensor detect carbon monoxide (CO)?
A: No, this specific 3-in-1 model detects VOCs, CO2, and Formaldehyde only. It does not detect Carbon Monoxide (CO). Please check our specialized CO sensors for that requirement.
Q: Does this module require an external library for Arduino?
A: While you can write your own parser, we provide a sample Arduino library on our GitHub repository to help you get started quickly with reading the UART data.
Q: Is the sensor pre-calibrated from the factory?
A: Yes, each unit undergoes factory calibration. However, for high-precision applications, we recommend performing a fresh air baseline calibration after installation.
Q: Does it come with a connector or just pins?
A: The module comes with standard 2.54mm pitch pins soldered. Connectors are not included but can be easily attached using standard Dupont wires or jumper cables.
Q: What is the power consumption during operation?
A: The typical operating current is around 80mA at 5V. We recommend using a stable power supply to ensure accurate readings during the heating element's warm-up phase.
Tire Stone Removal Hook with Built-in Screwdriver - Multi-Function Tool for Tire Cleaning, Window Breaking, and Self-Defense
$8.90
Blower Motor Compatible with Hummer H3, Hummer H2, and Cadillac Escalade
$340.00
Custom Fertilizer Integration Machine for Agriculture and Landscaping - Smart Quantitative Mobile Filtration System
$1,960.00
High-Speed Cell Sieve with Handle - Stainless Steel Laboratory Sieves (100, 200, 300, 400, 600 Mesh)
$61.74
Stainless Steel Food Warmer for Hotels and Breakfast Buffets - Commercial Flip-Top Chafing Dish with Insulation; Compatible with Induction Cookers
$1,288.00
Marie's Blending Stumps Set for Sketching and Shading, Professional Art Supplies for Students
$2.55
National Standard JB/ZQ4606-86 Felt Oil Seal Ring - Bearing Oil Absorption, Dustproof, Industrial Wool Felt Gasket Strip
$0.50
Qingzhu Sketching Eraser Knife and Paper Stump Tool Set for Art Students - Includes Replacement Tips, Gray Surface Pens, Makeup Sponge Blenders, Cotton Swabs, Foam Balls, Soft Blending Pens, Precision Insert Knives, and Sketch Eraser Balls
$7.20
4-Leg Chain Rigging Set - Alloy Steel Lifting Tool (1-200 Tons) with Multi-Leg Electromagnetic Chuck
$52.50
Commercial 1.8/2.2m Food Warmer Cabinet for Fried Chicken and Burger Shops, French Fry Heating Unit, 1.5m Two-Way Pickup Display Case
$3,573.50
Commercial Electric Heated Stainless Steel Fast Food Serving Counter Soup Warmer Buffet Cart
$842.00
Natural Crystal White Azeztulite Loose Beads with Rainbow Luster for DIY Necklaces, Bracelets, and Jewelry Making
$5.54
Ai Zao Fang Six-Cavity Oval Totem Handmade Soap Silicone Mold - Yields Approx. 115g per Bar
$17.70
Zunjue Wire-Bound 8K Watercolor Notebook 300g Watercolor Sketchbook Loose-Leaf Portable 16K Water-Soluble Colored Pencil Notebook Coil-Bound 32K Medium Coarse Fine Grain 200g Kids Students A4 Watercolor Notebook Plein Air Sketch Drawing Book
$7.65
Yuan Dynasty Calligraphy by Zhao Mengfu - Small Regular Script Diamond Sutra Brush Tracing Long Scroll Copybook, Original Version, Wholesale and Customization Available
$15.00
Kodak Photo Printing Service - High-Definition Prints from Your Phone with Lamination and Album Binding
$12.47
Shenzhen Custom Storefront Signage and Lightbox Installation - Illuminated Letters and Shop Plaques
$50.00
Automotive AC Refrigerant Gauge Set – R134a Pressure Meter with Dual Valve Tool for Home R22/R410 Air Conditioning Systems
$329.00
Complete Collection of Taoist Talisman Art Copybooks - Zhengyi Thirty-Six Generals, Calligraphy Practice Sheets with Stroke Order and Red Tracing, Classic Taoist Calligraphy
$38.00
Marie's Blending Knife Replacement Head Set Sketch Blending Tools Sponge Stumps Paper Stumps for Art Students
$4.25
French Imported Arches Watercolor Paper - Handmade 100% Cotton, 300g-850g, Medium/Rough Grain, Extra-Large Rolls and Sheets (4K, Full, Half, Quarter)
$33.10
Commercial Countertop Food Warmer Display Case - For Fried Chicken, Burgers, Egg Tarts, Pies, Youtiao, and Shaobing
$720.00
Integrated Hospital Wastewater Treatment Unit Underground Integrated Sanitary System Sewage Discharge Unit Eco-Friendly Wastewater
$10,000.00
Double Loop Lifting Chain with Rebar Bottom Hook - Manganese Steel Sling for Heavy Duty Rigging
$29.00
Screw Press Screw Sludge Dewatering Machine Sewage Treatment Equipment Rotary Type
$17,600.00
Imported INA Needle Roller Bearings: 9NA, NA 2940, 4R22, 4924, 4926, 4928, 4930-XL A
$109.00
High-Purity Nitrogen Generator for Reflow Soldering and Wave Soldering - Efficient Energy-Saving Transformer Protection for Electronics Factories
$46,100.00
Baohong Watercolor Paper 300g Wood Pulp Medium Grain A3 Full Sheet, Coarse/ Fine Grain Academy Grade 4K, A2, A1, A4 Artist Paper 2K for Art Students
$3.40
Manyue Handmade Natural Soy Wax and White Beeswax for DIY Low-Temperature Scented Candles – Includes Candle Cups and Jelly Wax
$5.46
Car Tire Stone Removal Tool Hook and Rake for Cleaning Tread Debris
$4.53
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
