Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Brand | Longge Electronics Technology |
| Model Number | LG-RS01-V2 |
| Operating Voltage | 3.3V to 5V DC |
| Output Signal | Digital Switch Output (0 and 1) |
| Comparator Chip | LM393 Wide Voltage Comparator |
| PCB Dimensions | 3.2cm x 1.4cm |
| Mounting Hole Diameter | 3.0mm |
| Sensitivity Control | Adjustable via Blue Potentiometer |
| Surface Coating | Gold Plated Nickel for Durability |
| Compatible Platforms | Arduino, Raspberry Pi, STM32, ESP8266 |
Anonymous
Apr 04, 2026
Rating: 5/5
Perfect for Robotics Class
Used this for a high school robotics project. It detected water instantly and triggered the alarm system we built. Very responsive.
Anonymous
Apr 02, 2026
Rating: 3/5
No Cable Included
Wish it came with jumper wires. Sensor itself is fine but I had to order cables separately to get started.
Anonymous
Mar 11, 2026
Rating: 5/5
Genuine Product
Verified the hologram sticker on the packaging. Real Longge quality compared to generic clones I bought elsewhere.
Anonymous
Feb 27, 2026
Rating: 4/5
Works well after tuning
The sensitivity needed some adjustment using the potentiometer but works great now. Good value for the price.
Anonymous
Jan 25, 2026
Rating: 5/5
Durable and Reliable
Left it outside during a storm for testing. The coating held up well and it still functions perfectly.
Q: What is the current consumption?
A: Typically less than 20mA during active operation.
Q: Does it provide analog output?
A: No, this specific module provides digital output only via the LM393 comparator.
Q: Is this compatible with Arduino Uno?
A: Yes, fully compatible with 5V logic boards like the Arduino Uno.
Q: Is the coating safe for outdoor use?
A: Yes, the nickel coating provides corrosion resistance for outdoor environments.
Q: Can it detect snow melt?
A: Yes, it detects moisture presence from snow, rain, or any water source.
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