Attributes

Brand	-
Category	Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin	-
Operating Voltage	3.3V to 5V DC
Output Type	Digital Switching (TTL)
Comparator Chip	LM393 Wide Voltage
PCB Dimensions	32mm x 14mm x 5mm
Sensing Surface	Gold Nickel Coated Traces
Sensitivity Control	Adjustable Potentiometer
LED Indicators	Power and Trigger Status
Mounting Holes	3mm Diameter (2 Holes)
Operating Temperature	-10°C to 70°C
Interface Connector	3-Pin PH2.0 Pitch

5 reviews

Anonymous

Apr 01, 2026

Rating: 3/5

Corrosion concerns

Works well initially but noticed some oxidation after months of outdoor exposure.

Anonymous

Mar 19, 2026

Rating: 5/5

Fast response

Very quick reaction time when water bridges the contacts. Happy with purchase.

Anonymous

Mar 07, 2026

Rating: 5/5

Reliable switch

Using this to close my windows automatically. Has not failed me yet.

Anonymous

Feb 15, 2026

Rating: 4/5

Good value

Sensitive enough for rain detection. Had to adjust the potentiometer slightly.

Anonymous

Jan 18, 2026

Rating: 5/5

Perfect for automation

Works great with my Arduino setup. Triggers reliably when water hits the sensor.

5 FAQ

Q: How much current does it draw?

A: Standby current is low, typically under 20mA when active.

Q: What microcontroller works best?

A: It is compatible with Arduino, ESP8266, ESP32, and Raspberry Pi GPIO.

Q: Can this be left in the rain permanently?

A: The board is not waterproof. Only the sensor traces should be exposed, ideally protected.

Q: Is this compatible with 3.3V logic?

A: Yes, the module operates comfortably between 3.3V and 5V DC.

Q: Does it provide analog output?

A: This version focuses on digital switching, but some variants offer analog voltage readings.

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