Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | D203S |
| Sensor Type | Pyroelectric Infrared (PIR) |
| Detection Angle | 140 degrees |
| Operating Voltage | DC 4.5V - 20V |
| Lens Color | Black |
| Output Signal | High/Low Level Trigger |
| Delay Time | Adjustable via potentiometer |
| Dimensions | 32mm x 24mm x 18mm |
| Mounting Type | PCB Screw Holes |
| Application | Automatic Lighting, Security Systems |
Anonymous
Mar 31, 2026
Rating: 4/5
Good sensitivity, easy to wire
Very responsive to motion. I had to tweak the delay potentiometer slightly to get the timing exactly how I wanted it, but once set, it has been reliable for weeks.
Anonymous
Mar 14, 2026
Rating: 4/5
Great value component
For the price, you can't beat the performance. The documentation could be slightly clearer on the pinout, but a quick search online solves that.
Anonymous
Mar 12, 2026
Rating: 5/5
Consistent performance
I have used various PIR sensors before, and this D203S model offers excellent consistency. The black lens seems to reduce interference from ambient light effectively.
Anonymous
Mar 08, 2026
Rating: 5/5
Reliable induction switch
Using this as a trigger for a camera system. It ignores small pets but picks up human movement accurately. No false alarms so far.
Anonymous
Mar 07, 2026
Rating: 5/5
Bulk buy for our workshop
We purchased ten of these for student projects. All units functioned correctly. The build quality feels solid and the pins are well-soldered.
Anonymous
Mar 02, 2026
Rating: 5/5
Perfect for my Arduino project
This D203S module worked flawlessly right out of the box. The detection range is impressive and the black lens blends well with my enclosure. Highly recommended for DIY automation.
Q: Does it support both high and low level triggering?
A: Yes, the module features a jumper cap that allows you to select between High-Level Trigger (H) and Low-Level Trigger (L) modes.
Q: Can this be powered by a 3.3V microcontroller?
A: The recommended operating voltage starts at 4.5V. While it might function at 3.3V, performance and detection range may be inconsistent. We suggest using a 5V supply for optimal results.
Q: Does this module come with the Fresnel lens attached?
A: Yes, the D203S module comes pre-assembled with the black Fresnel lens installed.
Q: What is the maximum current output of the sensor?
A: The output current is typically around 10mA, which is sufficient to drive an LED or a low-power relay directly, but we recommend using a transistor for higher load applications.
Q: Is the delay time adjustable?
A: Yes, there is an onboard potentiometer labeled 'TIME' that allows you to adjust the output delay from approximately 0.3 seconds to several minutes.
Guangxi Soilless Cultivation Ceramsite Substrate for Orchids and Green Plants - Lightweight Stone 5-30mm, Multiple Sizes Available for Hydroponics
$7.70
Deuter Germany Imported Waterproof Dry Bag - Ultra-Light Roll-Top Storage for Outdoor Clothing, Rafting, and Swimming
$102.00
Qingzhu Paper Blending Stump Set, Sketching Paper Stumps, Professional Large Size for Art Students, 3-Pack
$2.98
Water Curtain Spray Booth – Water Circulation Paint Mist Purifier, Eco-Friendly Stainless Steel Equipment
$773.00
Maike Outdoor Waterproof Barrel Bag - Portable Shoulder/Backpack for Swimming, Rafting, Beach Travel, and Water Sports
$22.70
Biliansheng Hair Transplant No-Shave Scar Planting 1000 Grafts Crown Density Enhancement
$12,000.00
Flat Floor Cable Raceway - Self-Adhesive Wire Hider for Power Strips and Network Cables, Anti-Step Protection and Aesthetic Cover
$3.30
Children's Art Supplies Sponge Paint Brush Graffiti Painting Tool Mushroom Head Stamp Student Craft Rubbing Stick Set
$4.10
Fresh Milk Production Line for Ranch Yak Milk Camel Milk Processing Equipment Bagged Milk Filling Machine
$9,330.00
Multi-Function Car Tire Stone Removal Hook with Built-in Screwdriver - Portable Cleaning Tool for Easy Debris Extraction by Car Owners
$13.24
Ouyang Xun Jiucheng Palace Regular Script, Yan Zhenqing Duobaota Pagoda Style, and Tian Yingzhang Regular Script Card Series for Brush Calligraphy Practice
$9.90
![[Pre-order Deposit Neo Eden Toys] Mengji Sweetheart Series Action Figure Blind Box](https://www.gosteppe.com/cache/small/product/269878/legacy-main-2c0235d7a3357d5860e527cd.webp)
[Pre-order Deposit Neo Eden Toys] Mengji Sweetheart Series Action Figure Blind Box
$59.00
Cute Embossed Cartoon Drawstring Bag - Dust-Proof, Portable, Multi-Function Fabric Pouch for Cosmetics
$2.98
Three-Wheel Industrial Vacuum Cleaner - Compact Electric Industrial Vacuum Cart
$2,596.00
ABB DC Drive DCS800-S02-2000-05 – Brand New, Original, Authorized Distributor
$1.53
Automatic Retractable Air Hose Reel with PU Sand-Embedded Hose for Auto Repair and Detailing Pneumatic Tools
$157.00
Blower Motor and AC Fan Blade for JMC Pickup Qiling T3/T5/T7 and Qiling T100
$93.00
9-Inch Industrial Microfiber Cleaning Cloth for LCD Screens and Lenses - Class 100 Dust-Free Wipe
$112.00
Dual-Tip Colored Oil-Based Marker Set for Drawing, Design, and Hand Sketching
$9.15
Podragon Waterproof Waist Bag for Diving, Snorkeling, Swimming, and Surfing - Large Capacity Airtight Zipper Phone Pouch for Rafting and Trekking
$399.00
Stainless Steel Countertop Food Warmer Display Case for Fried Chicken, Egg Tarts, Burgers, and Pies
$595.00
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
![[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)
