Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | M03 / M04 |
| Detection Type | Non-Contact Capacitive |
| Operating Voltage | DC 3.3V - 5V |
| Output Signal | Digital Switch (High/Low) |
| PCB Color | Green |
| Compatible Liquids | Water, Oil, Chemicals (Non-corrosive to container) |
| Container Material | Glass, Plastic, Ceramic (Non-metallic) |
| Response Time | < 20ms |
| Interface | 3-Pin Header (VCC, GND, OUT) |
| Application | Arduino, Raspberry Pi, IoT Projects |
Anonymous
Mar 29, 2026
Rating: 4/5
Good sensitivity, needs calibration
The module is sensitive and responsive. You do need to adjust the potentiometer on the back to get the threshold right for your specific container thickness, but once set, it's stable.
Anonymous
Mar 28, 2026
Rating: 4/5
Works well on plastic bottles
I tested this on various plastic containers. It works great on thinner walls. On very thick industrial plastic, the sensitivity drops a bit, but still usable with adjustment.
Anonymous
Mar 17, 2026
Rating: 5/5
Saved my final year project
Needed a safe way to monitor liquid levels without contaminating the solution. This non-contact sensor was the perfect solution. Highly recommend for academic projects.
Anonymous
Mar 12, 2026
Rating: 5/5
Easy to integrate with Arduino
Connected this to my Arduino Uno in minutes. The digital output makes coding very simple. It reliably triggers my pump when the water gets too low.
Anonymous
Mar 11, 2026
Rating: 5/5
Great value for money
Bought five of these for a smart home irrigation system. All of them worked out of the box. The non-contact feature is a huge plus for preventing corrosion.
Anonymous
Mar 03, 2026
Rating: 5/5
Perfect for my aquarium project
This sensor works exactly as described. I mounted it outside my glass tank and it detects the water level instantly without any wires touching the water. Very safe and reliable.
Q: How do I adjust the detection sensitivity?
A: There is a small blue potentiometer on the back of the PCB. Use a small screwdriver to turn it clockwise or counter-clockwise while testing to set your desired trigger point.
Q: Is the output analog or digital?
A: The standard output is digital (HIGH/LOW). However, some versions may allow analog reading if you tap into the comparator circuit, but out of the box, it functions as a switch.
Q: Does it work with oils or only water?
A: It works with various liquids including oils, provided the liquid has a dielectric constant different from air and the container is non-metallic. Sensitivity may vary by liquid type.
Q: Can this sensor detect water inside a metal tank?
A: No, this is a capacitive sensor designed for non-metallic containers like glass, plastic, or ceramic. Metal containers will interfere with the capacitance reading.
Q: What is the maximum wall thickness it can penetrate?
A: Generally, it works best with container walls up to 10mm thick, depending on the material density. Thinner walls provide more consistent results.
Paint Spray Catalytic Combustion Equipment - Industrial Exhaust Gas Treatment Device - Activated Carbon Adsorption/Desorption CO Catalytic Combustion
$324,999.00
Car Wheel Tire Bolt Rust-Proof Cap Universal Size 17 19 21 Decorative Dust-Proof Protective Cap Cover
$15.70
Commercial Electric Vegetable Slicer - Multi-Function Stainless Steel Machine for Potatoes and Canteens
$2,017.28
Irregular Ticket Stub Watercolor Paper Stamp Blank Drawing Paper 300g Cotton Pulp Fine Texture Thickened with Serrated Edges Specialized Paper for Art Students
$5.60
Stainless Steel Electric Buffet Warmer with Visible Lid - Square Flip-Top Chafing Dish for Hotels
$251.70
Baohong Cotton Pulp Watercolor Paper Pad 300g Cold/Hot Press, Glued on Four Sides, 16K/8K - Premium Full Cotton Art Paper for Oil Pastels and Professional Artists (Baoding, China)
$17.00
ORDER Industrial Large Roll Wiper Paper Dispenser, TORK Multi-Convenience Roll Stand
$170.00
Lifting Chain Slings Manufacturer, MHU Lifting Gear, G80 Manganese Steel Hoisting Chains, Single and Double Leg Sets
$835.00
Multi-Function Bathroom Storage Rack for Toilet, Washroom, and Sanitary Supplies, Over-Toilet Home Organizer
$20.30
Portable Travel Art Set for Kids - Watercolor Paint Box with Sketchbook and Mini Drawing Board
$9.05
Pneumatic Fitting PU Straight Connector Quick-Insert Plastic High-Pressure Air Hose Fitting PU-4681012
$4.90
Chain Sling Lifting Shackle Steel Chain Single Leg with Hooks on Both Ends for Towing, 2m Length, 5 Ton Capacity
$79.00
Large Brush Set Supply - Watercolor Pen Set for Children's Day Painting, Art, and Coloring
$25.55
Non-Bleeding Liquid Candle Dye - Macaron Colors for Soy Wax DIY Aromatherapy Candles
$21.00
Alloy Wheel Lug Nut Caps Compatible with Buick Excelle, Verano, Regal, LaCrosse, Encore, Cruze, Malibu, and GL8
$3.40
![[Damai Holds Micro-Needle Hair Transplant Patent] AI Robot Precision Hair Transplant | 1000 Units Hairline Planting](https://www.gosteppe.com/cache/small/product/269438/legacy-main-d695e1be3b1b8212f24ac863.webp)
[Damai Holds Micro-Needle Hair Transplant Patent] AI Robot Precision Hair Transplant | 1000 Units Hairline Planting
$24,990.00
Premium Ceramic Tea Canister Packaging Box, Empty Gift Box for Black Tea, Pu'er, White Tea, Biluochun, Gift Set Empty Box
$104.95
Thickened 304 Stainless Steel Planter Box for Home Balcony Vegetable Gardening - Rectangular Large Flower Pot for Rooftop Planting
$204.00
Zhongheng Car Tire Stone Hook - Multi-Function Tire Cleaner Tool to Prevent Blowouts
$7.14
JoanMiro 3D Printing Pen for Kids, Low-Temperature 3D Stereoscopic Drawing Toy, Perfect Gift for Boys and Girls on Children's Day
$29.90
Stainless Steel Tire Stone Removal Hook - Multi-Function Car Tire Cleaning Tool for Picking and Scraping Stones
$5.03
Cart Cover Rice Husk Charcoal Premium Plant Ash Grain Shell Carbon Natural Organic Fertilizer for Vegetables Succulents and Flowers
$6.55
Aojilong Automotive Plastic Restorer – Revives Black Trim, Repairs Aging, Crystal Coating Finish
$28.80
Hotel Meat Warmer Lamp - Buffet Heating Light for Cafeterias and Restaurants
$5,989.00
Topmodel Children's Watercolor Coloring Book Set with Pens, Baby Graffiti Sketchbook, Fill-in Storybook 3073
$119.09
Children's Potty Training Seat for Boys and Girls, Toddler Toilet Trainer with Urinal Bucket
$17.90
265/70R17 AT Off-Road Tire, Also Available in 205/215/225/235/45/50/55/60R18/20 High-Performance Sizes for 19-inch Wheels
$898.00
CANDLE.LAB | Silver Metal and Wood Wick Centering Device - DIY Tool for Aromatherapy Container Candles
$2.50
Custom Solid Wood Plaque - Antique Style Wooden Storefront Sign, Door Plaque, Carved Wood Board with Arched Couplets
$50.00
Industrial Scouring Pads - Stainless Steel Brushing and Rust Removal for Iron Plates - Heavy-Duty Kitchen Cleaning and Polishing
$17.62
![[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)
