LM393 Humidity Detection Snow Rain

High-Sensitivity Precipitation Grid: Features an anti-oxidation, nickel-plated sensing plate engineered to detect raindrops, snowfall, and surface moisture build-up instantly.

LM393 Voltage Comparator Circuit: Integrated LM393 differential voltage comparator IC delivers stable, noise-free digital switching signals to host microcontrollers.

Dual Signal Output Pins: Provides both an Analog Output (AO) pin for continuous moisture telemetry and a Digital Output (DO) pin for direct logic threshold control.

Adjustable Sensitivity Trimmer: Includes an onboard multi-turn potentiometer to precise-tune moisture trigger thresholds for relays, buzzers, and logic gates.

Integrated LED Status Indicators: Outfitted with an onboard red power indicator LED and a green digital switching status LED for instant visual verification.

Board Material: Flame-retardant FR-4 glass-epoxy sensing plate with nickel-plated traces; FR-4 control module breakout board.

Technical Specifications:

Sensor Type: Rain / Snow / Humidity Detection Sensor Kit.

Operating Supply Voltage: 3.3V – 5.0V DC.

Signal Outputs: Dual Analog (AO) + Digital Switching (DO).

Comparator IC: LM393 Differential Comparator.

Board Color: Blue PCB with Silver/Grid Sensing Lines.

Usage Advice: Mount the rain/snow collector plate at a slight angle to encourage liquid run-off; connect VCC (3.3V - 5V), GND, and direct AO to an ADC pin or DO to a digital pin.

Maintenance: Keep the control module dry while exposing only the sensing plate; periodically clean dirt or oxidation off the grid using isopropyl alcohol.

Essential All-Weather Detection Kit: Position as a versatile outdoor environmental sensor for automated window closing systems, smart laundry drying covers, greenhouse roof controls, and weather stations.

Highlight Snow and Rain Versatility: Emphasize how the enlarged nickel-plated grid surface allows for reliable detection of frozen precipitation (snowmelt) as well as liquid raindrops.

Recommended Cross-Sell Add-ons: Pair with ACEBOTT Raindrop Sensor /Vapor Sensor Steam Sensor Easy-Plug Compatible with ESP32/Arduino, ACEBOTT Water Level Sensor Droplet Detection Module Easy-Plug Compatible with ESP32/Arduino, Rain High Sensitive Module, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Rain Sensors collection page as your primary LM393 snow and rain detection kit.