> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Maxbotix Ultrasonic Rangefinder - HRLV-EZ4 - HRLV-EZ4

**Type:** Product page · **SKU:** ADA985 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/maxbotix-ultrasonic-rangefinder-hrlv-ez4-hrlv-ez4.html ([markdown](https://core-electronics.com.au/maxbotix-ultrasonic-rangefinder-hrlv-ez4-hrlv-ez4.html.md))

The HRLV-MaxSonar-EZ sensor line is the most cost-effective solution for applications where precision range-finding, low-voltage operation, space saving, and low-cost...

## Pricing

- **Price:** $64.95 (inc GST) — $59.05 AUD, exc GST
- **Quantity discounts:** 10+ $57.27 (exc GST) · 50+ $56.09 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA985:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/ADA985:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The HRLV-MaxSonar-EZ sensor line is the most cost-effective solution for applications where precision range-finding, low-voltage operation, space saving, and low-cost are needed.
 
 The HRLV-MaxSonar-EZ sensor line provides high accuracy and high resolution ultrasonic proximity detection and ranging in air, in a package less than one cubic inch. This sensor line features 1mm resolution, target-size and operating-voltage compensation for improved accuracy, superior rejection of outside noise sources, internal speed-of-sound temperature compensation and optional external speed-of-sound temperature compensation. This ultrasonic sensor detects objects from 1mm to 5meters, senses range to objects from 30cm to 5meters, with large objects closer than 30cm typically reported as 30cm. The interface output formats are pulse width, analog voltage, and serial digital in either RS232 or TTL. Factory calibration is standard.

A good sensor for when a Sharp IR distance sensor won't cut it. For example of using this with an Arduino, see the Halloween Pumpkin project.
 
 HRLV-EZ4 Data Sheet / [Product Information Guide is available here](https://core-electronics.com.au/attachments/localcontent/HRLV-MaxSonar-EZ_Datasheet_259895daed4.pdf). **By default this sensor outputs RS-232 logic level data, to use it in TTL logic mode, solder closed the square jumper on the back.**

 ![](https://core-electronics.com.au/attachments/localcontent/hrlvez4-beam-characteristics_395342fa308.jpg)
 
 [The different HRLV models have different beam width patterns, check this image for a comparison of all the HRLV model beam patterns](https://core-electronics.com.au/attachments/localcontent/HRLV-EZSensorBeamPatterns_364490c57e4.gif). If you don't need high sensitivity, or want a longer range, [check out the LV models - They are meant for up to 6.5 meter distances](https://core-electronics.com.au/#)

## Technical Details

Dimensions:

- Length: 15.52mm/0.61in
- Width: 22.36mm/0.88in
- Height: 20.0mm/0.79in
- Weight: 4.23g/0.15oz
 
For product support for all Maxbotix products, click here!

 ![](https://core-electronics.com.au/attachments/localcontent/rohs_icon_8216055e11.jpg)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/9/8/985-02.jpg)