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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
Siren Marine Siren 3 Plus™ Vessel Management SystemSiren 3 Plus Vessel Management System The Siren Marine Siren 3 Plus is the latest innovation in the expanding Connected Boat family of products from Siren Marine. The Siren 3 Plus allows you to monitor, track, and control your boat from virtually anywhere with a mobile device. Keep an eye on critical systems such as battery and bilge, always know your boat's location with built in GPS, and activate onboard devices such as lights or A C with the touch
Siren 3 Plus™ Vessel Management System
The Siren Marine Siren 3 Plus™ is the latest innovation in the expanding Connected Boat® family of products from Siren Marine.
The Siren 3 Plus allows you to monitor, track, and control your boat from virtually anywhere with a mobile device. Keep an eye on critical systems such as battery and bilge, always know your boat's location with built-in GPS, and activate onboard devices such as lights or A/C with the touch of a button. A built-in NMEA2000 connection allows boaters to stay on top of critical information such as tank levels and engine data.
Compatible with both hard-wired and wireless sensors, the Siren 3 Plus is the perfect solution for any type of boat, from center consoles and cruisers to pontoons and sailboats.
*Subscription required
Features:
- Allows you to monitor, track and control your boat from anywhere with a mobile device
- Can monitor all sensors equipped within your Siren Marine security system
- Know your boat's location with built-in GPS
- Monitor tank levels and engine data
- Can work with either hard wired or wireless sensor
- Ability to connect up to 15 wireless Sensors (Siren 3 series wireless sensors only)
- Internal Cell, GPS, and wireless sensors antenna
- Integrated NMEA 2000 5-pin connector
- Integrated 4g/5g LTE global SIM card
- Includes two (2) outputs which can be used to control onboard devices, in addition to a manual Arm/Disarm switch.
Technical Specifications:
- Dimensions - 6.5" x 4.4" x 2.1"
- Cellular Technology - 4G/5G CAT-M1
- Firmware Upgradability - Over the Air (OTA) for both Siren 3 Plus and wireless sensors
- Input Voltage Range - 9–30 VDC
- Wired Inputs - Battery 1, Battery 2, Arm/Disarm, High Water, Security, Shore Power and Ignition
In the Box:
- Siren 3 Plus Main Device
- One (1) wiring harness and connection hardware
- One (1) mounting bracket and mounting hardware
- Installation guide
- Mobile App guide
*Sold as an Individual
Manufacturer : Siren Marine
Manufacturer Part No : SM-SPL3-915
UPC : 857331007631
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 2175 reviews
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Product Reviews
★★★★★ 5
Most comfortable office chair this fluffy guy has ever sat in.
Color: Black, Style: Classic
This chair is incredibly comfortable—easily the most comfortable one I’ve ever sat in. At around 300lbs, I’ve struggled to find a chair that’s both supportive and spacious. Most options feel tight, with the armrests pressing into my hips. Not this one. If anything, I feel small in it—there’s plenty of room on either side. It’s like going from a cramped budget airline seat to first class on a full-service carrier.
The lumbar support is the best I’ve ever used. The materials are top-notch—everything from the base to the legs to the casters is metal (feels like steel). The casters themselves use what look like inline skate wheels and glide effortlessly across carpet—almost too well on hard surfaces, so you might want to consider a rug. Not a flaw, just something to keep in mind.
I’ve paid twice as much for chairs that felt half as good, so in my opinion, this is an excellent value. The faux leather looks great and the stitching appears durable. While it may not last as long as real leather or high-quality fabric, it should hold up for a reasonable amount of time.
Tilt functionality is basic—just two settings: upright or slightly reclined. Honestly, that’s all I need. If you’re looking for something to nap in, this might not be the chair for you. But for office work or gaming, it absolutely delivers all-day comfort.
For reference, I’m 5'8", and the headrest aligns perfectly with the back of my head. If you're 6'5", it might end up being more of a neck rest.
And I have to give a special shoutout to the included T-shaped hex wrench. It may sound silly, but this alone earns it a 5-star review from me. Every other chair I’ve bought includes those awful angled hex wrenches that make you slam your knuckles into the frame with every turn—often accompanied by some colorful language. Sure, I have my own tools, but finding where my wife hid them isn't always easy. A good-quality tool in the box? That’s thoughtful and appreciated.
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Reviewed in the United States on June 19, 2025
★★★★★ 5
Wide and comfortable office chair
Color: Black, Style: Classic, Color: Black, Style: Classic
It's made of very fine leather and in good quality. It has a pump to pump air to the back of the chair, so I can adjust the softness of the chair back. It's a very wide chair. Maybe the widest one I ever bought. I can only sit half of its space. It's very easy to install, the alignments are perfect. Its arm and height is adjustable. The wheels are advance ones which make it move through the floor smoothly. It looks an advance chair if you want an upgraded experience.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Excellent Comfort and Great Value for a Home Office
Color: Elegant Grey, Color: Elegant Grey
I am extremely happy with this office chair and feel it offers excellent value for the price. The chair was easy to assemble, and all the parts fit together perfectly. Once assembled, it feels sturdy, stable, and well-made.
The high-back design provides outstanding support for my back, neck, and shoulders. The seat cushion is thick and comfortable, making it easy to sit for long periods while working, studying, or gaming. The padded headrest adds extra comfort, and the faux leather material looks stylish and gives the chair a premium appearance.
One of my favorite features is the flip-up armrests. They are comfortable to use and make it easy to slide the chair under my desk when I need extra space. The height adjustment, smooth swivel, and rocking function all work well and allow me to find the perfect sitting position throughout the day.
The chair arrived exactly as described and exceeded my expectations in both comfort and appearance. It looks great in my home office and has made long work sessions much more enjoyable. If you're looking for a comfortable, attractive, and affordable office chair, I highly recommend this product. I would definitely purchase it again and would gladly give it five stars.
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Comfortable and Stylish Office Chair
I’ve been using this chair for my home office, and it’s been very comfortable. The high back provides good support, and the lumbar support helps reduce strain during long hours at my desk. The leather looks nice and gives the chair a professional appearance. I really like the flip-up armrests because they make it easy to slide the chair under the desk when not in use. The rocking function is a nice feature for relaxing during breaks, and the chair rolls and swivels smoothly. Overall, it’s a comfortable, well-made office chair that looks great and provides excellent support for everyday work.
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Reviewed in the United States on June 4, 2026
★★★★★ 5
Excellent lumbar support and easy assembly
I bought this chair because of my lower back pain, and it has been very comfortable to use. The leather feels soft, and the lumbar support is excellent. Assembly was easy, and the tools included, especially the screwdriver design were very well thought out, which made the whole setup process much easier.
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Reviewed in the United States on June 2, 2026
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