OLAS Guardian - Wireless Engine Kill Switch
SKU:EXPOLASGUARDIAN
OLAS Guardian is a wireless engine kill switch designed for small motor vessels under 25ft, giving boat users a practical alternative to the traditional kill cord while adding smarter control and security features. It allows full freedom of movement around the vessel, while still ensuring the engine will shut down instantly if the skipper or designated crew member goes overboard or becomes separated from the boat.
It is designed to run alongside existing kill cord systems rather than replace them, adding an extra layer of protection without changing normal operating habits.
Free OLAS Mobile App for enhanced setup, control and monitoring, explore here
App Download: App store / Google Play
Key benefits
- Wireless engine kill switch with no physical tether
- Instant engine shutdown on man overboard or separation
- Freedom of movement around the vessel
- Supports up to 25 OLAS wearable tags
- Seamless helm tag for automatic connect/disconnect in daily use
- Built-in smart engine immobiliser for theft prevention
- Works alongside existing kill cord systems
- Optional MOB tracking and GPS recovery via OLAS app
ONLY suitable for stop circuits rated 2 Amps or less. Diesel engines may required an additional high current relay.
In The Box: Guardian, OLAS Tag + Battery, Power Connection wires, Kill cord connection wires, Stainless steel switch, User Guide, 5 x marine connectors.
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- In stock
Wireless kill switch without the restrictions of a lanyard
Traditional kill cords do their job, but they can be restrictive and easy to forget when moving around the boat or changing positions at the helm. OLAS Guardian removes that limitation by using wearable OLAS tags instead of a physical tether.
If the tag assigned to engine control disconnects - typically due to a fall overboard - the engine is shut down automatically within seconds.
That means:
- No physical lanyard restricting movement
- Instant engine shutdown if the operator goes overboard
- Continuous protection while moving freely around the vessel
It keeps the safety principle of a kill cord, but makes it wireless and automatic.
Designed for motor vessels
OLAS Guardian is purpose-built for:
- RIBs and inflatables
- Sports boats
- Day boats
- Coastal leisure craft
These vessels typically involve:
- Frequent movement around the boat
- High-speed operation
- Single or short-handed crews
The system ensures engine shutdown still happens instantly in a man overboard situation, without restricting normal movement onboard.
Smart Lock / Engine Immobiliser Built-in theft protection
Beyond onboard safety, OLAS Guardian also works as a smart engine immobiliser when the vessel is unattended.
When armed, the system prevents the engine from starting unless a paired OLAS tag is present onboard. This provides a simple but effective layer of anti-theft protection for outboard and small inboard engines.
It delivers:
- Engine start prevention without authorised tags
- Easy arming when leaving the boat moored or stored
- Protection against unauthorised use or opportunistic theft
- No physical keys or switches that can be easily bypassed
Up to 25 tags with flexible configuration
OLAS Guardian supports up to 25 OLAS wearable tags, each assignable to different roles:
- Engine kill mode – triggers automatic engine shutdown on separation
- Alarm-only mode – MOB alert without engine cut-off
- Helm tag mode – manages automatic system connection and disconnection
This flexibility allows the system to be tailored to different crew setups and vessel use cases.
Connect and run in parallel to your existing engine stop system
Our product is designed to seamlessly integrate with your current kill switch system, simplifying installation and allowing your existing system to be used in parallel if required.
Features and how to use them
How to setup and customise an OLAS Helm Tag
Stay in Control with the OLAS Helm Tag - Wireless Engine Cut-Off for Safer Boating
Setting up a Helm Tag lets you move freely around your vessel without the need for a traditional kill cord – while still maintaining automatic engine cut-off protection.
In this video, we show how the Helm Tag helps streamline operations, enhance safety, and reduce stress onboard. Learn how to calibrate your Helm Tag and customise detection range to suit your operations.
🔹 Hands-free engine cut-off
🔹 Freedom of movement on board
🔹 Easy setup with the OLAS mobile app
🔹 Ideal for solo operators, families, and commercial vessels
Whether you're out fishing, cruising, or running support ops, the OLAS Helm Tag puts safety and control at your fingertips.
Smart Lock – Engine Immobiliser for Smarter, Safer Boating
The OLAS Smart Lock is an advanced engine immobiliser feature built into the OLAS Guardian system. Designed to bring added security and peace of mind to your vessel, Smart Lock prevents engine start-up unless an authorised OLAS tag is detected or a secure PIN code is entered via the OLAS mobile app.
Whether your boat is unattended at the dock or you're switching between multiple users, Smart Lock helps deter unauthorised use while seamlessly integrating with your existing OLAS safety system.
🔒 Prevent unauthorised engine use
🔑 Unlock via personal OLAS tag or secure PIN
⚓ Adds a layer of security without extra hardware
📲 Controlled and configured through the OLAS app
💡 Ideal for both recreational and commercial boats
With OLAS Smart Lock, you’re always in control - even when you’re not on board.
Customise Your OLAS Safety System with Alert Settings
View how to setup your Alert Settings video
The Alert Settings in the OLAS app give you greater control over how your safety system responds if a tag disconnects from your vessel.
Detection Time – Set how long the system waits before triggering an alarm if a tag is lost. A longer detection time gives the tag more opportunity to reconnect without activating a false alarm – ideal for larger boats or when moving around with obstacles on deck.
Alert Delay – This optional setting gives you a clear, audible warning before an MOB alarm or engine cut-off is activated. It’s particularly useful when building confidence in the system, offering reassurance that you'll get a warning before any automatic shut-off occurs.
Whether you’re cruising solo or managing a busy deck, adjusting these settings helps tailor OLAS to your style of boating – ensuring your safety system works with you, not against you.
All settings are easily accessed through the free OLAS mobile app, available for iOS and Android.
Standby Mode – Flexible Safety, When You Need It
OLAS Standby Mode gives you the flexibility to keep the OLAS safety system running quietly in the background, ready to reactivate the moment it’s needed.
Why Use Standby Mode?
If you’re not actively using the wireless engine cut-off or MOB alarm - such as during calm conditions, while moored, or when using the vessel at anchor - you can pause active tracking without fully powering down. The system remains connected but won’t trigger alarms or engine cut-offs until reactivated.
Easy Activation, Anytime
Standby Mode can be entered in two simple ways - either through the OLAS mobile app or by pressing the dash-mounted Control Switch. It’s quick, intuitive, and ensures you can easily toggle the system as needed.
Ready When You Are
Perfect for powerboat operators who may frequently move away from the helm, or for when conditions start to turn, Standby Mode allows you to resume full operation instantly—no need to reconnect or restart the system.
Controlled via the OLAS mobile app or the physical switch, Standby Mode helps you stay in control while maintaining readiness for any situation.
Whether you're relaxing, fishing, or preparing for rougher weather, OLAS Standby Mode offers safety on standby - so you're always one step ahead.
Solo Mode – Smart Safety for Skippers Going It Alone
When activated, Solo Mode adds an extra layer of protection by automatically sending an SMS alert if you fall overboard and become separated from your vessel. The alert includes your GPS position, vessel name and time of incident - helping ensure someone knows where to find you, even if you're alone and unable to call for help.
Perfect for anyone heading out alone who wants peace of mind
No wiring, no complicated setup - just smart, simple safety from your phone.
System Setup and Use
How long does it take for the engine to stop after a man overboard incident?
By default, the engine cuts off approximately 3 seconds after a tag disconnects from the Guardian hub.
This response time can be customised in the Alert Settings.
- if false alerts occur, allowing the tag time to reconnect.
- to introduce a pre-warning (audible beeps) before cut-off. This is useful for troubleshooting and reassurance during use.
Can I start the engine without a connected tag?
- Without Smart Lock activated: Yes, you can start the engine. The system will emit a warning beep if no tags are connected. You can override this by putting the Guardian into Standby Mode.
- With Smart Lock activated: A tag must be connected, or the system unlocked via the OLAS mobile app using your PIN code.
What’s the connection range of the tags?
Tags disconnect instantly when submerged in open water, triggering engine cut-off.
Alternatively, use the Helm Tag setting via the app to customise the disconnection distance — ideal for ensuring the engine cuts even if the tag remains onboard.
What do I need to do when returning to my boat?
- Power on your vessel – the Guardian will activate automatically.
- If your tag is already switched on, it will auto-connect.
- If it’s off, simply power it up — the Guardian will recognise and reconnect to it.
How do I know my tag is connected?
- Solid green light on the control switch = tag is connected.
- Flashing red and green = no tags are connected.
- Solid red = system in standby. Press the control switch once to return to tracking.
For confirmation: the OLAS app will display your tag's serial number will display when connected.
Do all tags cut the engine when disconnected?
By default, yes.
However, using the OLAS app, you can customise tags to trigger only a MOB alarm without stopping the engine - ideal for passengers or pets.
How long does the tag battery last?
- The OLAS Tag (CR2477) lasts up to 3 months if left on continuously. For best performance, turn it off if not in use for more than 2 days. Click for a video on how to change the battery.
- The OLAS T2 Tag is USB-rechargeable and lasts up to 6 days on a single 3-hour charge. Learn more.
Does the Guardian work with multiple engines?
Yes, the Guardian can be connected to up to three outboard engines using the OLAS Multi-Engine Connector.
How do I unlock the Smart Lock/Immobiliser?
You can either:
- Connect a Smart Key tag (assigned via the OLAS app), or
- Enter your PIN code in the OLAS app to unlock the system.
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Power/Current |
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Vessel Length/Range |
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Tracked Olas Emitters |
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Passenger Engine Restart |
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Mobile App |
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LED Output |
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Buzzer Output |
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Housing Material |
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Fuse |
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Bluetooth |
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Applications |
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Approvals |
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Frequently Asked Questions
What is the best wireless kill switch for boats?
The OLAS Guardian is widely considered one of the most complete wireless kill switch systems because it combines automatic engine shutdown with crew monitoring, MOB track-back, and configurable safety alerts.
Does OLAS Guardian work straight out of the box?
Yes. OLAS Guardian arrives pre-configured for single-handed operator use, meaning zero additional setup is required. Simply install the unit and you are protected immediately.
How many crew members can OLAS Guardian track?
OLAS Guardian can monitor up to 25 wireless tags simultaneously, making it suitable for family boats, commercial vessels, and crewed operations.
Does OLAS Guardian include man overboard tracking?
Yes. OLAS Guardian includes MOB track-back functionality to guide recovery and help crews return to the exact location of the person in the
water.
Can OLAS Guardian immobilise the engine?
Yes. The system includes configurable engine immobiliser settings for enhanced security and safety.
Is OLAS Guardian suitable for single-handed boating?
Yes. It is pre-configured for solo operator use and requires no additional setup, making it ideal for single-handed boaters.
Can I customise OLAS Guardian settings?
Yes. Advanced users can configure alarm behaviour, shutdown delay, tag monitoring, immobiliser settings, and other safety features.
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Got a question?
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Yes, we ship orders worldwide. You can see our shipping rates at checkout.
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Returned items must come back in saleable condition. We aren't able to accept returns on items that have been used. For more info, please see our returns policy.