Smart Marine Battery Monitor for 24/7 Protection

The Sense4Boat Battery Sensor monitors your boat’s battery voltage around the clock, alerting you to drops, discharges, or overheating before they become a problem.

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Comprehensive and Continuous Battery Monitoring

Continuously tracking your battery’s voltage and temperature every 15 minutes, the Smart Battery Sensor alerts you instantly to abnormal conditions – low charge, overheating, or deep discharge, so you can take action before battery damage occurs.

Why It's A "Must Have" Sensor

Extend Battery Life: Prevent sulfation and deep discharge with timely low/critical voltage warnings.

Monitor Charging Safely: Receive alerts when charging starts, ends, or temperatures rise too quickly, avoiding dangerous overheating.

Rugged & Reliable: Built in an IP67-rated enclosure to endure humidity, engine-room heat, and fumes

Easy, Independent Connectivity: Works without a SIM or hub via the global Sigfox 0G network, powered by replaceable batteries lasting several years.

Order Your Sensor
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Marine battery monitoring smartphone app

How It Works

1. Install & Activate: Connect the sensor to your battery bank (12/24V), and activate using the app or magnet trigger.

2. Automated Monitoring: It checks voltage and temperature every 15 minutes.

3. Threshold Comparison: If values exceed your set limits, or change significantly (~100 mV), an alert is generated

4. Instant Notifications: Alerts go to your phone (via push, email, SMS) and optionally to marina/service contacts.

5. Data Access: All readings are stored in the cloud and viewable anytime through the mobile app.

Order Your Sensor

Technical Specifications

Update Interval: Every 15 minutes

Voltage & Temperature Monitoring: 
Alerts on low/critical voltage, charging status, and overheating

Voltage Range:
Designed for 12 V or 24 V battery banks

Enclosure Rating:
IP67 – built for engine-room durability

Power:
Internal replaceable battery lasting several years

Connectivity:
Sigfox 0G network – no SIM or boat wiring

 

Word On The Docks

Boaters’ Insights on Lokket’s Smart Marine Sensors

Beth M
Beth M
Bay Club Marina
We've been with Lokket for a couple of years now, and their customer service is great, the equipment keeps getting better and the price has gotten lower! Who does that? Very responsive when there were issues, even on weekends and holidays. The equipment now is very stable and the Internet is super-fast, and the price is extremely reasonable.
Kirk P
Kirk P
Hyatt Regency Mission Bay
Have had Lokket on my boat in San Diego for years now and it works amazingly well. My boat has been moored in 2 different marinas and the signal has been strong and consistent at both. Technical service, while rarely needed, has always been provided quickly and efficiently... usually the same day.
Tim M
Tim M
Sun Harbor Marina
I have been living on my 45-foot sailboat in America's Cup Harbor on Point Loma since November 2018. I joined Lokket WiFi in January 2019 and have been totally satisfied with their internet service. My internet connection has been extremely reliable and, on those infrequent occasions when there has been an issue, Eric and his team have been promptly responsive. They have been proactive in offering me of equipment upgrades. Lokket's billing system has dependably serviced my account without fail or complication. In reviewing my account, I found that my e-mails are answered within a day, and my few issues were resolved quickly - often on the same workday. As a retired Navy destroyer captain, I value Lokket's WiFi service reliability and dependable customer service to this afloat account. Well Done!
Rick M
Rick M
Safe Harbor Sunroad
For the last two years my WIFI service from Lokket has been excellent. Upload and download speeds far better than my Cox service at home, and at a much lower cost. Having the right equipment is important, and your location in the Marina is much less of an issue than years ago.
Gregory F
Gregory F
Pier 32 Marina
Very happy with product and service. Lockett provides WiFi service at my Marina and I am very pleased with their installer, Fred. The company is responsive and I would highly recommend.
Ben W
Ben W
Bay Club Marina
Had several interruptions in the first year (2022), but the service has been rock-solid since--no drops in over a year. Great speed, great price, and overall very satisfied!
Joseph C
Joseph C
Bay Club Marina
Fred came out and did a fantastic job of getting me up and running quickly and efficiently. I am extremely happy with the follow up on the service and the quality of both the installation and signal. Not to mention the incredible savings. Highly recommended. Thank you Eric and Fred and all support.
Bryan C
Bryan C
Safe Harbor Sunroad
Great value, quality service and good customer service. The service is dependable and equipment costs reasonable.
Dawn S
Dawn S
Dockmaster - Fifth Ave Landing
We hired Lokket to upgrade our WiFi and security cameras at Fifth Avenue Landing Marina 2 years ago. Making the switch from Cox to Lokket was the best decision we could have made and we are immensely happy with their service. Our superyacht Captains, crew and guests have been 100% satisfied with the internet speeds (no small feat when you have 100+ users). The security cameras are high quality, reliable and able to store recordings which has been an added value to our security protocol at the Marina. Lokket's offerings are fantastic and they continue to provide excellent support and service.
Jack F
Jack F
Dockmaster - Kona Kai Marina
We use Lokket wifi and security cameras on the entirety of our property at Kona Kai Marina. Since we switched from Cox, we have had excellent wifi in our office and for the boats in our marina. Our 540 tenants rave about how good the service is on their boats. Security cameras are high quality and easy to use. Their service is fast and effective. They really have changed the game for marina wifi and we couldn't be happier.
Scott B
Scott B
Sun Harbor Marina
Great job!
Dave Casady
Dave Casady
Kona Kai Marina
Been using them for 2 years now. Great detailing service and always on schedule. Great pricing too.

Call (858) 345-1616 or Provide Us With A Few Details Below

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