Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Brand | DFRobot |
| Model Number | SEN0271 |
| Interface Type | Analog (AO) / Digital (DO) |
| Operating Voltage | 3.3V - 5V DC |
| Detection Wavelength | 760nm - 1100nm |
| Detection Angle | 60 degrees |
| Output Signal | Digital Switching Output (0 and 1) |
| Comparator Chip | LM393 |
| PCB Dimensions | 32mm x 14mm |
| Compatibility | Arduino, Raspberry Pi, Micro:bit |
Anonymous
Mar 28, 2026
Rating: 5/5
Perfect for fire safety projects
This sensor works flawlessly with my Arduino Uno. The sensitivity is adjustable via the potentiometer, which makes it easy to calibrate for different environments. Great build quality.
Anonymous
Mar 27, 2026
Rating: 5/5
Reliable and responsive
We bought ten of these for our workshop kits. They are consistent in performance and the digital output makes integration very simple. Highly recommended for educational purposes.
Anonymous
Mar 26, 2026
Rating: 5/5
Exactly as described
Fast shipping and the module arrived in perfect condition. Tested it immediately and it reacts very quickly to open flames. The analog output allows for distance estimation too.
Anonymous
Mar 19, 2026
Rating: 4/5
Good value, easy to use
Used this for a university project on home automation. It detected the flame from a lighter instantly. The only downside is that the documentation could be slightly more detailed for beginners.
Anonymous
Mar 16, 2026
Rating: 4/5
Solid sensor module
Works well for detecting candle flames and lighters. Be aware that strong sunlight can sometimes trigger false positives if not shielded properly, but that is expected for this technology.
Anonymous
Mar 09, 2026
Rating: 5/5
Great addition to my robot
Integrated this into my fire-fighting robot. The response time is impressive, and the compact size fits perfectly on the chassis. Very happy with this purchase.
Q: How do I adjust the sensitivity of the detection?
A: There is a blue potentiometer on the board. Use a small screwdriver to turn it clockwise to increase sensitivity or counter-clockwise to decrease it while testing with a flame source.
Q: Does this module work with 3.3V logic boards like the ESP32?
A: Yes, the module operates within a 3.3V to 5V range, making it fully compatible with 3.3V logic boards such as the ESP32 and Raspberry Pi.
Q: Is a library required to use this with Arduino?
A: No external library is strictly required. You can read the digital output using standard digitalRead() functions or the analog output using analogRead(). Sample code is available on our wiki.
Q: Can this sensor detect smoke or only open flames?
A: This sensor is designed specifically to detect the wavelength of open flames (760nm-1100nm). It is not a smoke detector and will not reliably detect smoke particles alone.
Q: What is the maximum effective detection distance?
A: Under normal indoor lighting conditions, the effective detection range is typically between 0cm to 100cm, depending on the size and intensity of the flame.
Selected Factory Low-Temperature 3D Printing Pen for Kids, Children's 3D Printing Pen Set, 3D Drawing Pen
$100.02
Milk Pasteurization Line - Small-Scale Yogurt Production Machine for Liquid Yogurt and Pasteurized Milk
$8,148.00
Commercial Small Heating Warmer Cabinet, Glass Constant-Temperature Countertop Display Case for Egg Tarts, Burgers, and Fried Chicken
$884.00
Custom Seal Stamp Engraving Personal Name Phone Number Private Chop
$5.89
Commercial Food Warmer Cabinet for Milk, Soy Milk, Burgers, Egg Tarts, Fried Chicken, Pies, Youtiao, and Bread Display
$1,355.00
PJ0040 Rose Embossed Cross Silicone Mold - For Candles, Aromatherapy, Soap, Plaster, and DIY Crafts
$11.20
Yuwell Oxygen Concentrator Control Board Motherboard 8F-3AW/8F-5AW/9F-5BW
$120.00
Leyingfang Floating Pen for Kids and Students - Water-Based Non-Toxic Erasable Whiteboard Pen for Drawing in Water, Large Capacity Suspension Pen
$18.00
Car Wheel Lug Nut Covers - Colorful Silicone Dust-Proof and Rust-Proof Caps for Tire Bolt Protection and Exterior Styling
$8.80
Automatic Stainless Steel Vegetable Slicer for Ginger, Potatoes, Carrots, Onions, and Cabbage - Commercial Dicing Machine
$3,951.36
![[Damai Holds Micro-Needle Hair Transplant Patent] Top Thinning Hair Transplant | Micro-Needle Density Enhancement (500 Units)](https://www.gosteppe.com/cache/small/product/270156/legacy-main-525bdaff56f89ee94752ef9c.webp)
[Damai Holds Micro-Needle Hair Transplant Patent] Top Thinning Hair Transplant | Micro-Needle Density Enhancement (500 Units)
$7,000.00
Little Leather Paper Strip Music Box (30-Note) Sheet Music - Contact Before Ordering; Specify Song Email for Digital Score Delivery
$1.00
Kitchen Sink Strainer Basket Push-Type Food Residue Separator Filter Hanging Storage Rack
$3.80
Heavy-Duty Heat-Treated CV Joint Puller Tool - Axle Ball Cage Removal and Installation Device for Automotive Repair
$66.00
Mobile Integrated Waste Transfer Station - 17 Cubic Meters Movable Compression Container
$159,443.00
Antique Glaze White Ceramic Brush Washer Large Brush Washer Water Pot Ink Stone Washing Calligraphy Painting Brush Washing Basin Four Treasures of the Study
$16.80
Authentic Chinese Philosophy Classics: Di Tian Sui, Qiong Tong Bao Jian, San Ming Tong Hui - Annotated & Illustrated Edition
$29.90
Household Disposable Kitchen Sink Garbage Filter Mesh Drain Pool Dishwashing Basin Strainer Vegetable Bowl Leftover Sink
$3.51
Continental Run-Flat Tires: 225/235/245/255/265 45/50/55 R17/R18/R19/R20/R21/R22
$357.00
Foldable Steel Tire Stone Removal Hook - Multi-Tool for Tire Repair, Stone Picking, and Emergency Window Breaking with Storage Bag
$11.70
Integrated Catalytic Combustion Unit RCO Furnace - Exhaust Gas Treatment System with Activated Carbon Adsorption-Desorption and Catalytic Combustion
$231,249.00
Universal Waterproof and Sunproof Cover for E-Bike Charger with Outdoor Storage Box
$11.85
Baohong Paper Brick Watercolor Paper Pad, Medium/Coarse Texture, Square/Round Shapes for Painting, Sketching, and Cotton Pulp Practice
$28.00
Commercial Food Warmer Cabinet for Pies, Youtiao, Burgers, Egg Tarts, and Fried Chicken, Heating and Temperature-Controlled Display Case
$977.00
Masking Tape Spray Paint Shielding Paper for Art Students and Sketching - Non-bleeding, Residue-free, Hand-tearable, Shoe-safe
$1.00
Electric Scooter and Motorcycle Hook - Multi-Functional Storage Hanger for Delivery Bikes and Cargo Boxes
$2.50
Huirui 420AB Fast-Drying Glue for Silicone - Bonds ABS, Stainless Steel, TPE, Rubber; High-Strength Instant Adhesive for Difficult Materials
$36.00
Color Proofing Instrument Ink Mixing Tool Sample Making Machine
$1,860.00
Variable Frequency Drive 0.75kW 2.6A Three-Phase 380V
$1,430.00
2026 Spring PEP New Edition Primary English Grade 3 Volume 2 Four-Line Three-Grid Word Cards for Teachers, Open Class Competition Creative Blackboard Design, Teaching Contest Blackboard Strips and Teaching Aids
$11.30
![[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)
