Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Detection Range | 760 nm - 1100 nm |
| Operating Voltage | 3.3V - 5V DC |
| Output Signal | Digital Switch Output (0 and 1) |
| Comparator Chip | LM393 |
| Pin Count | 4 Pins |
| Sensitivity Adjustment | Potentiometer Adjustable |
| PCB Dimensions | 32mm x 17mm |
| Mounting Hole Diameter | 3mm |
| Response Time | < 15 microseconds |
| Compatible Platforms | Arduino, Raspberry Pi, STM32 |
Anonymous
Mar 31, 2026
Rating: 5/5
Great for robotics competitions
Used this in our university robotics project for line following and obstacle avoidance involving heat sources. The 4-wire setup is straightforward, and the digital output is clean. No issues so far.
Anonymous
Mar 31, 2026
Rating: 5/5
Easy to integrate
Plug and play with standard microcontroller libraries. The documentation provided by the seller was helpful, and the pinout is clearly marked on the PCB. Excellent purchase for the price.
Anonymous
Mar 27, 2026
Rating: 5/5
Perfect for fire safety projects
This sensor works exactly as described. I used it with an Arduino Uno to build a small fire alarm prototype, and the sensitivity adjustment via the potentiometer makes it very versatile. Highly recommended for hobbyists.
Anonymous
Mar 16, 2026
Rating: 4/5
Works well but sensitive to sunlight
The sensor is very responsive to flames, perhaps too much so if used near windows with direct sunlight. You really need to tune the potentiometer carefully for indoor vs outdoor use. Otherwise, great product.
Anonymous
Mar 14, 2026
Rating: 5/5
Reliable infrared detection
I bought five of these for a workshop. All units performed consistently. The LM393 comparator provides stable switching, and the indicator LED helps visualize detection status immediately.
Anonymous
Mar 13, 2026
Rating: 4/5
Good value, needs calibration
The module is solid and well-soldered. It took a little time to calibrate the threshold correctly to avoid false positives from ambient light, but once set, it detects flame sources reliably within the stated range.
Q: Can this sensor detect a candle flame from 1 meter away?
A: Under normal indoor lighting conditions, the effective detection range for a standard candle flame is typically between 30cm to 80cm. At 1 meter, detection may be inconsistent unless the environment is very dark and sensitivity is maxed out.
Q: Is the output analog or digital?
A: This specific 4-wire module provides a digital switch output (HIGH/LOW). However, because it uses an LM393 comparator, some users modify it to read the analog signal before the comparator, but out of the box, it is digital.
Q: What is the current consumption of this module?
A: The module typically consumes around 20mA when the indicator LED is on and active. In standby mode without detection, consumption is significantly lower, making it suitable for battery-powered projects.
Q: Does this work with 3.3V logic boards like ESP32?
A: Yes, the module operates on a voltage range of 3.3V to 5V, making it fully compatible with 3.3V logic systems such as the ESP32, ESP8266, and 3.3V Arduino variants.
Q: Can it distinguish between different types of fire?
A: No, this sensor detects infrared wavelengths in the 760nm-1100nm range common to most flames. It cannot differentiate between fuel types (e.g., wood vs. gas); it simply indicates the presence of a flame source within its spectral range.
Custom Company Sign KT Board Bank Account Opening Plaque Stainless Steel Door Plate PVC Simple Signboard Acrylic Advertising Board
$17.00
New Travel Portable Water Bottle Sleeve, Crossbody Bag for Coins, Keys, and Phone, Single Bottle Pouch for Cycling and Fitness
$20.00
Useless Genius Autumn Forest Animal Plant Bird Butterfly Handmade Pottery Ceramic Stamp Clay Mold
$8.80
Underbite Corrector Storage Case for Children - Portable Box with Lanyard for Frankel Appliance and TB Expander
$14.33
Wilderness Old Blacksmith EDC Storage Box - Small Shockproof, Waterproof, and Moisture-Proof Case with Foam Insert
$29.90
Manufacturer Sales Fully Automatic Pasteurization Production Line Vegetable Blanching Equipment Bottled Milk Sterilization Line
$12,740.00
Pomegranate Juice Grape Juice Pasteurization Tank Orange Juice Apple Juice Sterilizer Complete Mare's Milk Pasteurized Milk Production Line
$6,048.00
Ouyang Style Medium Regular Script: 52 Ancient Poems on Xuan Paper Large Character Copybook for Beginners - Ink-Blot Resistant
$12.00
Honeywell 7950 Phase Change Pad Thailand Import Laptop CPU GPU Thermal Interface Material Heat Sink Paste
$14.80
Calligraphy Arm Rest Felt Pad - Mini Brocade Felt Hand Rest for Chinese Painting and Calligraphy Practice, Inkstone Mat by Meilin Brush Studio
$7.48
Trail Running Silicone Hydration Bladder - Foldable 500ML Pocket Water Bag for Hiking and Outdoor Sports
$22.00
Steel Wheel Lug Nuts for Car Modification, Compatible with Civic, Mazda6, Reiz, Sylphy, Extended External Hex Nut Caps
$75.55
Mobile Gantry Crane – Manual Push-Run Small Home Hoist (1/2/3/5 Ton)
$1,244.00
Taiwan Ginger Shredder - Multi-Function Stainless Steel Slicer for Potatoes, Carrots, and Ginger
$5,200.00
Iers Electric Airbrush/Marker Pen Wireless Handheld Portable for Gundam Model Painting
$322.00
Commercial Glass Food Warmer Display Case for Egg Tarts, Hamburgers, Fried Chicken, and Youtiao - Countertop Heating Cabinet for Catering
$1,795.00
Premium Used Tires Removed from Vehicles Sizes 155 165 175 185 195 205 215 225
$54.00
Storage Bag Compatible with Dyson/Laifen Hair Dryer Curling Iron Straightener Double-Layer Portable Travel Hand-Carry Case
$48.40
Chushinmi - Silicone Collapsible Dish Drying Rack, Kitchen Organizer, Sink Utensil Holder for Bowls and Chopsticks
$61.90
Wenxin Tang Ultra-Clear Zhi Yong Thousand Character Classic Regular Script Calligraphy Cards - Boxed Practice Sheets for Medium-Sized Brush Writing
$40.80
Cute Pig Pot Lid Holder and Drainage Mat, Multi-Function Heat Insulator and Cutting Board Rest
$2.01
![[Damai Micro-Needle Hair Transplant Patent] Top Scalp Thinning Treatment | High-Density 200 Grafts Micro-Needle Transplant](https://www.gosteppe.com/cache/small/product/269847/legacy-main-921c5365abd34b2597668ec5.webp)
[Damai Micro-Needle Hair Transplant Patent] Top Scalp Thinning Treatment | High-Density 200 Grafts Micro-Needle Transplant
$199.00
Song Dynasty Guo Xi's 'Traveling in Snowy Mountains' Hanging Scroll - Study Copy Template, Art Core, Landscape Painting, Zen Decorative Art, HD Collectible
$12.80
Drain Basket for Wet/Dry Separation with Hanging Vegetable Strainer Rack
$111,978.00
Custom Mesh Lid Organizer Bag for Pelican 1535 Case - Laptop Compartment
$118.70
Home LED High-Power Rechargeable Flashlight, Multi-Purpose Long-Range Portable Ultra-Bright Mini Torch
$20.60
Accsoon CineEye M7 Pro 4K Wireless Video Transmitter and Monitor with 7-inch HDMI/SDI Dual-Transmission Screen
$99.00
Stainless Steel Sink Rack Kitchen Organizer Over-Sink Dish Drying Rack with Utensil Holder
$48.00
Specialized Vegetable Growing Box - Foam Balcony Planter, Rectangular Plastic Pot for Home Gardening
$41.70
Thickened Resin Vegetable Planter Box - Rectangular Plastic Balcony Pot for Growing Vegetables and Flowers
$101.00
![[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)
