Mighty Mule Driveway Alarm (FM231)

Installation Manual

Mighty Mule Driveway Alarm (FM231)

Name: Mighty Mule Driveway Alarm (FM231)
Brand: Mighty Mule
SKU: FM231
Price: 89.95 USD
Availability: InStock

$89.95

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The Mighty Mule Wireless Driveway Alarm (FM231) is designed to help you keep track of vehicles entering or exiting your property. It uses a reliable electromagnetic vehicle detection system that senses mass metals in motion passing through your driveway or property entrance. When a vehicle passes the sensor, you’ll be notified by an audible chime on the included indoor base station. You can place additional indoor receivers in multiple areas within the range of the driveway sensor, allowing you to receive alerts from different parts of your property.

Gate and Gate Openers not required. Standalone product for driveways.

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Product Details

The Mighty Mule FM231 wireless driveway alarm delivers reliable, long-range vehicle detection so you can secure your property without a gate or complex setup. You’ll appreciate its DIY-friendly installation, clear indoor chime alerts, and the ability to expand coverage with extra receivers.

Reliable electromagnetic vehicle detection senses mass-metal motion passing through your driveway
Included indoor receiver emits a clear audible chime when a vehicle enters or exits
Expandable system lets you add multiple FM231‑R receivers to cover larger properties and different locations
Easy DIY installation with included mounting stake—bury the sensor beside your driveway and place the receiver where you need it
Wireless connectivity reaches up to 400 ft between the outdoor transmitter and indoor receiver
Battery-powered design runs on two AA batteries (not included) and features low‑battery indicators on both units
Operates stand‑alone—no gate or gate opener required—and comes with a 12‑month warranty and dedicated technical support

What's in the Box?

- Transmitter

- Sensor

- Receiver

- Transformer

- Mounting post (3pcs)

Warranty Information

12 Month Warranty when purchased directly from Mighty Mule or an authorized dealer.

Register your warranty here.

Installation Manual

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Home Security, Made Easy

Easy Installation

Simple DIY installation. Works independently and does not need a Mighty Mule Gate Opener.

Reliable Detection System

Utilizes electromagnetic vehicle detection system and only senses mass metals. Avoids false alarms.

Battery-Powered

Only needs 2 AA batteries for long lasting operation. Low battery indicators on both the receiver and transmitter.

Wide Wireless Range

Up to a 400 ft. wireless range from outdoor transmitter to the indoor receiver. Get instant alerts of any vehicles entering the property.

Frequently Asked Questions

What is a wireless driveway alarm?

The FM231 wireless driveway alarm uses an electromagnetic vehicle detection system to sense metal mass in motion and alerts you with an indoor chime.

Can the FM231 alarm be expanded with additional receivers?

Yes, the FM231 is an expandable driveway alarm system that allows you to add additional indoor receivers (FM231‑R) to cover multiple areas.

What is the wireless range of the outdoor driveway sensor?

The FM231 outdoor driveway sensor provides a wireless range of up to 400 feet between the transmitter and each indoor receiver.

Does the FM231 require batteries?

The FM231’s indoor receiver plugs into a standard outlet, while its transmitter is powered by two AA batteries. When the transmitter’s batteries run low, you’ll see alerts on the receiver.

Is a gate required to use the property security alarm?

No, the FM231 property security alarm is a standalone product that does not require a gate or gate opener to operate.

What prevents false alarms in this electromagnetic sensor?

The FM231’s electromagnetic sensor only senses mass metals, avoiding false alarms from animals or debris while providing a clear driveway chime alarm.

What comes in the box when purchasing the FM231 driveway alarm?

The FM231 kit includes a transmitter, sensor, an indoor receiver for driveway alarm, transformer, and three mounting posts.

Customer Reviews

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Best Customer & Technical Support in the Industry

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Technical Support on Products

Our technical support team is dedicated to assisting you with any issues or questions you may encounter. Additionally, we leverage cutting-edge technologies to facilitate the seamless installation of your gate opener.