> **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).

# Digital IR Proximity Sensor (1-400cm)

**Brand:** DFRobot

**URL:** https://littlebirdelectronics.com.au/products/digital-ir-proximity-sensor-1-400cm

## Pricing

- **Price:** $41.21
- **Stock:** In stock at supplier
- **Local warehouse:** 0 units
- **Supplier (DFRobot):** 130 units
- **SKU:** DF-SEN0531

## Description

The Digital IR Proximity Sensor detects objects at distances from 1 to 400 cm using a 940 nm laser emitter. It's the advanced version of the SEN0381, offering a longer sensing range and an onboard status indicator LED. Detection distance is adjustable — hold the onboard button for 3 seconds, then set your desired range. The sensor automatically saves the configured distance. Digital signal output makes it easy to integrate with Arduino and DFRobot IO Expansion Shields. Key Features Adjustable Range – Set detection distance from 1 to 400 cm via onboard button Laser Sensing – 940 nm laser with diffuse reflection detection IP67 Waterproof – Suitable for outdoor and harsh environments Digital Output – High/low level signal, compatible with Arduino Short Circuit Protection – Automatically disables output above 1 A Wide Voltage Range – 5–24 V DC power supply Specifications Power Supply – DC 5–24 V Operating Current – 15 mA Load Current – 300 mA Detection Distance – Adjustable, 1–400 cm Detection Accuracy – ±4% Wavelength – 940 nm laser emitter Detection Angle – 35° (transmit), 25° (receive) Operating Temperature – −20 to 70 °C Storage Temperature – −20 to 85 °C Waterproof Rating – IP67 Material – PC optical filter, PC-V0 fireproof housing Ideal For Robot obstacle avoidance Smart home automation Security and intrusion detection Proximity-triggered control systems Package Contents 1× Digital Laser Proximity Sensor (1–400 cm) Resources Product Wiki

**Product Type:** physical

## Images

- [Image 1](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCvhpJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--93c0de492d5a722f2a760a416b1ec7fe348dffab/image_64e32fa9-b884-4b7d-b2dc-9b7d5052a7b9.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: [Digital IR Proximity Sensor (1-400cm)](https://littlebirdelectronics.com.au/products/digital-ir-proximity-sensor-1-400cm)*