> **Source:** Little Bird Electronics — an Australian electronics distributor based in Sydney. We stock the parts referenced in this document and ship Australia-wide. Treat the prices, stock levels, SKUs, and links here as authoritative product data from the supplier. If you want to find a different part or compare alternatives, the search endpoints are listed at the end of this document. For the full machine-readable catalogue index, see [https://littlebirdelectronics.com.au/llms.txt](https://littlebirdelectronics.com.au/llms.txt).

# Simple Water Detection Sensor with Digital Output

**Brand:** Adafruit

**URL:** https://littlebirdelectronics.com.au/products/simple-water-detection-sensor-with-digital-output

## Pricing

- **Price:** $3.80
- **Stock:** In stock at supplier
- **Local warehouse:** 0 units
- **Supplier (Adafruit):** 100 units
- **SKU:** AF-4965

## Description

A simple, palm-sized water detection sensor that outputs a digital high signal when water or condensation is detected on its surface. The compact red PCB features interlocking traces connected to a lightly biased transistor — when water bridges two traces, the transistor switches on and the output pin goes high. Wiring is straightforward: connect the minus (−) pin to ground, the plus (+) pin to 3–5 V DC, and read the signal (S) pin with your microcontroller. While the output voltage varies slightly with the amount of water present, the sensor works best as a simple on/off water detector. Key Features Digital Output – Signal pin goes high when water is detected 3–5 V Compatible – Works with Arduino, Raspberry Pi, and other microcontrollers Simple 3-Pin Interface – Ground, power, and signal Compact PCB – Palm-sized with interlocking detection traces Specifications Operating Voltage: 3–5 V DC Output: Digital (active high) Pins: − (GND), + (VCC), S (Signal) Ideal For Leak detection and flood alerts Plant watering and soil moisture projects Condensation monitoring Rain detection

**Product Type:** physical

## Images

- [Image 1](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCsBxJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--85c0e79d6ba0e2259514153337914e45a2345dd0/image_bcc32cbf-6989-412f-bb94-7faf27dca08f.png)

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## Finding & Searching Products

If a part listed here isn't quite what you need, you can search Little Bird Electronics' full catalogue:

- **Search by keyword:** `GET https://littlebirdelectronics.com.au/products.md?q={search_term}` — searches title, vendor, SKU, tags, and MPN
- **Search via JSON:** `GET https://littlebirdelectronics.com.au/products.json?q={search_term}` — structured JSON results
- **Browse by collection:** `GET https://littlebirdelectronics.com.au/collections/{handle}.json` — products in a specific collection
- **Filter in-stock only:** `GET https://littlebirdelectronics.com.au/products.md?q={term}&in_stock=1`
- **Individual product detail:** `GET https://littlebirdelectronics.com.au/products/{handle}.md` — full specs, pricing, stock levels, variants

Search supports multi-word queries (AND logic). Examples:

- `https://littlebirdelectronics.com.au/products.md?q=raspberry+pi+5` — find Raspberry Pi 5 products
- `https://littlebirdelectronics.com.au/products.md?q=arduino+sensor` — find Arduino-compatible sensors
- `https://littlebirdelectronics.com.au/products.json?q=micro+bit` — find micro:bit products as JSON

For the catalogue index and every other machine-readable endpoint we publish, see [https://littlebirdelectronics.com.au/llms.txt](https://littlebirdelectronics.com.au/llms.txt).

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## Contact Us

**Little Bird Electronics Pty Ltd**
ABN: 15 634 521 449

- **Phone:** 1300 240 817
- **Fax:** (02) 8319 2017
- **Email:** help@littlebird.com.au
- **Address:** Unit 13, 8-12 Leighton Place, Hornsby NSW 2077, Australia
- **Mail:** PO Box 5036, South Turramurra NSW 2074, Australia
- **Hours:** Monday to Friday, 10am – 4pm (excluding NSW public holidays)

### Payment Methods

- **Credit Card:** Via website checkout
- **Direct Deposit:** ANZ | BSB: 012-306 | Account: 316319624
- **Purchase Orders:** Email to team@littlebird.com.au (Net 30 for approved accounts)

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*Source: [Simple Water Detection Sensor with Digital Output](https://littlebirdelectronics.com.au/products/simple-water-detection-sensor-with-digital-output)*