SKU: 66110676462

Mopeka TD40 Ultrasonic Bluetooth Tank Level Sensor (Victron Compatible)

Sale price$93.63 Regular price$104.03
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Description

Mopeka TD40 Ultrasonic Bluetooth Tank Level Sensor (Victron Compatible)Mopeka TD40 Ultrasonic Bluetooth Tank Level Sensor: Precision Monitoring for Critical Liquid Assets Engineered Accuracy for Demanding Tank Level Applications The Mopeka TD40 Ultrasonic Tank Level Sensor delivers high resolution liquid measurement for professionals managing propane, LPG, water, and other stored liquids. Using advanced ultrasonic technology, this sensor reads levels down to 0. 25 mm (0. 01 inch), providing the data integrity needed for

Mopeka TD40 Ultrasonic Bluetooth Tank Level Sensor: Precision Monitoring for Critical Liquid Assets

Engineered Accuracy for Demanding Tank Level Applications

The Mopeka TD40 Ultrasonic Tank Level Sensor delivers high-resolution liquid measurement for professionals managing propane, LPG, water, and other stored liquids. Using advanced ultrasonic technology, this sensor reads levels down to 0.25 mm (0.01 inch), providing the data integrity needed for inventory control, safety compliance, and operational efficiency. Its long-range Bluetooth (BLE) connectivity integrates directly with the Tank Check or Co-Pilot app, transforming your smartphone or tablet into a centralised monitoring dashboard.

Unlike conventional float-based or capacitive sensors, the TD40 mounts externally to the tank bottom, eliminating contact with the liquid. This non-invasive design reduces corrosion risk, simplifies installation, and ensures consistent performance across a wide range of tank heights up to 4.88 metres (16 feet). Whether you are managing a single residential LPG tank or a fleet of commercial vessels, the TD40 provides reliable, repeatable measurements without the maintenance burden of traditional probes.

Key Technical Advantages

  • Sub-millimetre resolution: Measures liquid levels to 0.25 mm, enabling precise inventory tracking and leak detection.
  • Extended battery service: Powered by 2x AA Energizer Ultimate Lithium cells, delivering up to 5 years of operation for minimal field intervention.
  • Boosted Bluetooth range: Long-range BLE ensures stable data transmission through tank walls and across typical installation distances.
  • Multi-commodity support: Select propane, butane, water, or custom liquids directly in the app for automatic volume calculations.
  • Cloud-enabled data: AWS-powered backend allows remote monitoring, historical trending, and multi-user access via the Co-Pilot platform.
  • Victron integration ready: Seamlessly connects with Victron GX devices for unified energy system monitoring.

Installation and Integration

The TD40 requires a 50.8 mm (2-inch) threaded port or a 50.8 mm diameter hole cut into the tank top. This standardised footprint simplifies retrofitting into existing tank infrastructure. Once installed, the sensor pairs with the free Tank Check or Co-Pilot app, available for iOS and Android. The app provides real-time level readings, low-level alerts, and usage history, helping you avoid run-outs and optimise refill scheduling.

For off-grid and mobile applications, the TD40’s low power consumption and robust BLE link make it ideal for caravans, RVs, and marine vessels where reliable tank monitoring is critical but access is limited. The sensor’s solid-state design withstands vibration and temperature extremes, ensuring dependable operation in harsh environments.

Why Choose Ultrasonic Over Traditional Sensors?

Traditional mechanical float sensors are prone to sticking, corrosion, and inaccurate readings due to sludge or sediment. Capacitive probes require tank wall penetration and are sensitive to liquid dielectric changes. The Mopeka TD40’s ultrasonic pulse technology measures the time-of-flight from the sensor to the liquid surface, unaffected by liquid composition, temperature stratification, or tank material. This results in a maintenance-free solution that maintains accuracy over years of service, reducing total cost of ownership and operational risk.

Applications

  • Caravan and RV fresh water and LPG tanks
  • Marine fuel and water storage
  • Off-grid residential propane and water systems
  • Industrial chemical and process liquid inventory
  • Tiny home utility monitoring

Download the App:

For detailed installation instructions, please refer to: Mopeka TD40 Install Instructions

Take Control of Your Tank Monitoring

Equip your system with the Mopeka TD40 Ultrasonic Tank Level Sensor and gain the precision and reliability your operations demand. Order today to eliminate guesswork and ensure your critical liquids are always accounted for.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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]
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SKU: 66110676462

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Amazon Mom of 3.
Belleville, US
★★★★★ 1
Cute and soft
Size: One Size, Color: Tan, Size: One Size, Color: Tan
Returned it. It did not stay close. Wanted to use as a cute diaper bag alternative. But if you don’t carry a lot of stuff, it might work for you. Very cute butter, soft material.
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Reviewed in the United States on March 11, 2026
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Zoe
Draper, US
★★★★★ 3
Great bag, but...
Size: One Size, Color: Tan
This tote is good. Great size, looks more expensive than what it was and I have received compliment on it. The reason I gave three stars is that it does not stays closed! The magnets are just not strong enough to keep it closed.
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Reviewed in the United States on June 5, 2025
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Alfonso A
Waukegan, US
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Very elegant
Size: One Size, Color: Tan
Very elegant ! Good quality
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Reviewed in the United States on January 19, 2026
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TV
West Palm Beach, US
★★★★★ 4
Utilitarian-Simple and sleek
Size: One Size, Color: Tan
I needed a tote bag to carry a spiral bound notebook, credit card, keys, iPad or laptop and iPhone. It works. I got the brown color which works well with black and just about any other color. I like the external look...reminds me of the Coach bags without all the metal. The bag doesn't look like a $300 bag, but I didn't pay $300 either.
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Reviewed in the United States on February 13, 2025
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Darlene Butler
Fort Morgan, US
★★★★★ 1
Runs really small
Size: Small, Color: White Stripe
Fits more like an extra small but very long. Neck is oversized, pretty see-through
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Reviewed in the United States on September 1, 2024

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