Mopeka Sonic Grease: Precision Couplant for Ultrasonic Tank Sensors

Reliable Signal Transmission for Accurate Level Monitoring

The Mopeka Sonic Grease (4 Pack) is a specialised acoustic couplant engineered to optimise the performance of Mopeka ultrasonic tank sensors. By filling microscopic air gaps between the sensor face and the tank surface, this sonic grease ensures consistent ultrasonic signal transmission, delivering precise and repeatable tank level readings in caravans, RVs, marine vessels, and off-grid installations.

Unlike dielectric grease or general-purpose lubricants, Mopeka Sonic Grease is formulated specifically for ultrasonic conductivity. It does not insulate or attenuate the acoustic pulse, which is critical for sensors that rely on sound waves to measure liquid levels through tank walls. Using incorrect compounds can lead to erratic readings, signal loss, or sensor damage, making this purpose-built couplant essential for reliable monitoring.

Why Acoustic Couplant Matters

Ultrasonic sensors operate by emitting high-frequency sound pulses that travel through the tank material and reflect off the liquid surface. Any air gap between the sensor and the tank wall scatters the signal, causing measurement errors. Mopeka Sonic Grease provides a stable, low-impedance interface that maximises acoustic energy transfer, even on rough or uneven surfaces. This is particularly important for propane tank monitoring, where accuracy is critical for safety and convenience.

Key Features

• Optimised for ultrasonic sensors Formulated to match the acoustic impedance of Mopeka sensors, ensuring minimal signal loss
• Protects sensor integrity Creates a moisture-resistant barrier that helps prevent corrosion on the sensor face, extending service life
• Single-use 1 cc packets Pre-measured for one application, eliminating guesswork and reducing waste
• 4-pack convenience Ideal for multi-tank setups or keeping spares on hand for reinstallation after tank swaps
• Wide application range Suitable for steel, aluminium, and composite tanks commonly found in mobile and off-grid systems

When to Reapply Sonic Grease

Reapplication is recommended whenever a sensor is removed from the tank, such as during cylinder exchanges or system maintenance. The grease can also degrade over time in high-temperature or dusty environments. Keeping a 4-pack ensures you can restore peak sensor performance immediately, avoiding downtime and inaccurate readings.

Applications

• Caravans and RVs Monitor fresh water, grey water, and propane levels with confidence
• Marine vessels Reliable tank monitoring in humid, salt-laden conditions
• Off-grid cabins Track water and fuel reserves without manual dipping
• Industrial and agricultural Use on stationary tanks where ultrasonic sensors are deployed

Technical Insight: Not a Dielectric Grease

While dielectric grease is designed to insulate electrical connections, it can block ultrasonic signals. Mopeka Sonic Grease is a non-conductive acoustic couplant that does not interfere with the sensor’s electronics but actively enhances the mechanical wave transmission. This distinction is vital for users comparing sonic grease vs dielectric grease for their monitoring systems.

Maintain Accurate Tank Monitoring

Equip your Mopeka sensors with the correct couplant to ensure every reading is dependable. Add the Mopeka Sonic Grease 4 Pack to your maintenance kit and eliminate the uncertainty of false or fluctuating tank levels.