--- product_id: 31357087 title: "3pcs LM393 Rain Drops Sensor Weather Moisture Monitor Sensor Humidity Sensitivity Module Nickeled Plate 3.3-5V for Arduino" brand: "hiletgo" price: "45.76 DT" currency: TND in_stock: true category: "Hi Letgo" url: https://www.desertcart.tn/products/31357087-3pcs-lm393-rain-drops-sensor-weather-moisture-monitor-sensor-humidity store_origin: TN region: Tunisia --- # 15mA strong drive current Large 5.4x4.0cm rain detection area Adjustable sensitivity potentiometer 3pcs LM393 Rain Drops Sensor Weather Moisture Monitor Sensor Humidity Sensitivity Module Nickeled Plate 3.3-5V for Arduino **Brand:** hiletgo **Price:** 45.76 DT **Availability:** ✅ In Stock ## Summary > 💧 Stay ahead of the storm with precision rain sensing tech! ## Quick Answers - **What is this?** 3pcs LM393 Rain Drops Sensor Weather Moisture Monitor Sensor Humidity Sensitivity Module Nickeled Plate 3.3-5V for Arduino by hiletgo - **How much does it cost?** 45.76 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/31357087-3pcs-lm393-rain-drops-sensor-weather-moisture-monitor-sensor-humidity) ## Best For - hiletgo enthusiasts ## Why This Product - Trusted hiletgo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable & Reliable:** High-quality FR-04 double-sided PCB material guarantees long-lasting performance in diverse weather conditions. - • **Robust Signal Output:** Clean TTL digital and analog outputs with strong 15mA drive capacity to power relays and buzzers directly. - • **Plug & Play Integration:** Compact control board with clear VCC, GND, DO, AO pins designed for seamless Arduino compatibility. - • **Customizable Sensitivity:** Easily fine-tune detection thresholds via built-in potentiometer for tailored environmental response. - • **Precision Rain Detection:** Large nickel-plated sensor board ensures accurate moisture sensing with superior oxidation resistance. ## Overview The HiLetgo LM393 Rain Drops Sensor is a high-performance moisture detection module featuring a large nickel-plated sensing surface and robust 15mA comparator output. Designed for Arduino and similar microcontrollers, it offers both digital TTL and analog outputs with adjustable sensitivity, enabling precise and reliable rain detection for smart weather monitoring projects. ## Description Instructions: When connected to a 5V power supply , power indicator light, no water droplets on-board sensors , DO output is high, switch lights off, drop a drop of water , DO output is low, the switch indicator lightBrush above water droplets, has returned to output high stateAO analog output can be connected to the microcontroller AD port to detect drops in the above rainfall sizeDO TTL digital outputs can also be connected to the microcontroller to detect whether there is rain .Features:Power indicator, output signal LED indicatorNo rain when the LED light output is high, the raindrop up, the output level, LED light.Large area raindrops, more conducive to the detection of rain.Board with positioning holes for everyone to installVoltage: 5VControl board board size: 3 * 1.6 MMLarge area raindrop test board 5.4 * 4.0 MMWiring:1. VCC: positive power supply (3-5V)2. GND: power supply is negative3. DO: TTL switching signal output4. AO: analog signal outputPackage Included:3*LM393 Rain Drops Sensor ## Features - The sensor uses high quality FR-04 double-sided materials, large area of 5.0 * 4.0CM, and nickel-plated surface, with oxidation resistance, conductivity, and life expectancy superior performance - Comparator output, the signal clean, good waveform, strong driving ability, more than 15mA - The raindrop board and the control board are separate, easy to lead the line - TTL level output, TTL output valid signal is low. Drive capacity of about 100MA, direct drive relays, buzzers, small fans, and so on. - Adjust sensitivity by potentiometer ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01DK29K28 | | Best Sellers Rank | #1,220 in Single Board Computers (Computers & Accessories) | | Brand Name | HiLetgo | | Centerline Length | 5.4 millimeters | | Color | black | | Connector Type | Screw | | Current Rating | 15 milliamps | | Customer Reviews | 4.3 4.3 out of 5 stars (122) | | Manufacturer | HiLetgo | | Material Type | Plastic | | Model | 3-01-0312-A | | Mounting Type | Surface | | Number Of Contacts | 6 | | Number Of Poles | 3 | | Number of Items | 800 | | Number of Positions | 3 | | Part Number | 3-01-0312-A | | Pitch | 5.4 millimeters | | Voltage | 5 volts | ## Product Details - **Brand:** HiLetgo - **Color:** black - **Connector Type:** Screw - **Current Rating:** 15 milliamps - **Item Pitch:** 5.4 millimeters - **Material:** Plastic - **Mounting Type:** Surface - **Number Of Contacts:** 6 - **Number Of Poles:** 3 - **Voltage:** 5 volts ## Images ![3pcs LM393 Rain Drops Sensor Weather Moisture Monitor Sensor Humidity Sensitivity Module Nickeled Plate 3.3-5V for Arduino - Image 1](https://m.media-amazon.com/images/I/51j+vdzdB8L.jpg) ![3pcs LM393 Rain Drops Sensor Weather Moisture Monitor Sensor Humidity Sensitivity Module Nickeled Plate 3.3-5V for Arduino - Image 2](https://m.media-amazon.com/images/I/41tjWvNZdDL.jpg) ![3pcs LM393 Rain Drops Sensor Weather Moisture Monitor Sensor Humidity Sensitivity Module Nickeled Plate 3.3-5V for Arduino - Image 3](https://m.media-amazon.com/images/I/41n9a2wsZFL.jpg) ![3pcs LM393 Rain Drops Sensor Weather Moisture Monitor Sensor Humidity Sensitivity Module Nickeled Plate 3.3-5V for Arduino - Image 4](https://m.media-amazon.com/images/I/41--Z63rsvL.jpg) ![3pcs LM393 Rain Drops Sensor Weather Moisture Monitor Sensor Humidity Sensitivity Module Nickeled Plate 3.3-5V for Arduino - Image 5](https://m.media-amazon.com/images/I/31Nwgc2EDRL.jpg) ## Questions & Answers **Q: Will these work with a Raspberry Pi?** A: Yes **Q: Will it work with a 12V supply?** A: You will want a good, stable 5 volt supply of using with Raspberry Pi. **Q: is it 5 or 3.3v? description says 5, but title says both.** A: It will work with either the 3.5 or 5 volt signal from your Arduino board. ## Frequently Bought Together - HiLetgo 3pcs LM393 Rain Drops Sensor Weather Moisture Monitor Sensor Humidity Sensitivity Module Nickeled Plate 3.3-5V for Arduino - HiLetgo 5pcs LM393 3.3V-5V Soil Moisture Detect Sensor Soil Moisture Sensor Soil Hygrometer Detection for Arduino Automatic Watering System Robot Smart car - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/31357087-3pcs-lm393-rain-drops-sensor-weather-moisture-monitor-sensor-humidity](https://www.desertcart.tn/products/31357087-3pcs-lm393-rain-drops-sensor-weather-moisture-monitor-sensor-humidity) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-16*