Maretron - TLM150-01 Gasoline Tank Level Monitor - 24" Depth

Advanced Ultrasonic Gasoline Tank Level Monitoring

The Maretron TLM150 is an advanced ultrasonic gasoline tank level monitor designed for precise fluid level measurement. Unlike traditional probes that corrode or become obstructed, this unit utilizes ultrasonic sound waves to determine fuel levels accurately. Mounted at the top of the tank, the TLM150 transmits and receives sound waves to calculate the fluid level, ensuring reliable performance in marine environments.

By integrating seamlessly with the NMEA 2000® network, the TLM150 broadcasts real-time fuel levels, allowing users to monitor tank status from anywhere on the vessel using an NMEA 2000® compatible display such as the Maretron DSM250. Whether you're navigating long voyages or optimizing fuel efficiency, this sensor provides essential data for informed decision-making.

High-Precision Ultrasonic Sensing

The TLM150 is engineered for gasoline tanks up to 24 inches (0.61 meters) in depth. Unlike standard tank sensors that only function with rectangular tanks, this model supports calibration for irregularly shaped tanks, ensuring accurate readings regardless of tank design.

Seamless Installation and Mounting Options

Designed for easy installation, the TLM150 mounts directly onto the tank using the industry-standard SAE J1810 5-hole mounting pattern. Optional adapters are available for tanks with threaded openings, including both 1.5" NPT and 1.25" BSP options. For vessels with planing hulls, a focus tube accessory can be added to maintain accuracy even when the bow is pitched upward.

NMEA 2000® Network Integration

Fully certified for the NMEA 2000® network, the TLM150 enables seamless data sharing across compatible marine displays. As a crucial part of Maretron’s N2KView® vessel monitoring system, it ensures that tank levels can be easily viewed from multiple locations onboard.

Key Features

• Ultrasonic technology eliminates the need for intrusive probes
• Measures gasoline tank levels up to 24" (0.61m) in depth
• Compatible with irregular tank shapes for precise calibration
• Industry-standard SAE J1810 5-hole mounting pattern
• Optional adapters for threaded tank openings (1.5" NPT and 1.25" BSP)
• Focus tube accessory available for vessels with planing hulls
• NMEA 2000® certified for real-time fuel level monitoring
• Works seamlessly with Maretron DSM250 and N2KView® systems

With its advanced ultrasonic technology and seamless integration into vessel monitoring systems, the Maretron TLM150 ensures reliable fuel level tracking for enhanced marine efficiency and convenience.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

Deliveries are handled by preferred carriers such as USPS, UPS, FedEx, DHL, and others depending on your location and selected service. Estimated delivery times are displayed at checkout and may vary due to customs processing, carrier delays, weather, postal disruptions, or other circumstances beyond our control. Once your order ships, you'll receive a confirmation email with tracking information. Tracking may take up to 24 hours to update on the carrier's website and is also available through your account when applicable.

We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

Learn more.

Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

Learn more.

Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

Learn more.