The UE Systems Ultraprobe 201 Grease Caddy is uniquely designed to allow an operator to simultaneously lubricate and monitor ultrasound levels to prevent over-lubrication of operating equipment. Attaching easily to most standard grease guns, this innovative tool translates high-frequency sounds produced by bearings into the audible range, enabling users to hear and recognize bearing sounds even in the noisiest environments .

As lubrication levels in a bearing decrease, friction increases and ultrasonic waves are produced. These waves are very directional and localized, making them ideal for targeted inspection. The Ultraprobe 201 uses an electronic process called heterodyning to accurately translate these ultrasound signals into the audible range. Users can hear the sounds through included heavy-duty noise-isolating headphones while simultaneously observing the amplitude on a 10-segment LED bar graph, which serves as a guide for knowing when to stop applying grease .

The unit features a peak frequency response centered around 38 kHz with 8-position precision attenuation for sensitivity adjustment. A built-in front-end lamp illuminates dark work areas, and the swivel base adjusts to odd angles for comfortable use. The transducer is magnetically mounted and acoustically isolated from the grease gun to prevent vibration interference. The caddy is powered by rechargeable nickel metal hydride batteries with a time-delay auto power-off feature and includes a low battery indicator .

Using the Ultraprobe 201 helps prolong equipment life by preventing over-lubrication, identifying bearing issues by listening, saving on man-hours and operational costs, and improving overall maintenance efficiencies. The kit includes the grease caddy unit, deluxe noise-isolating headset for hardhat use (providing over 23 dB of noise attenuation), and universal mounting hardware. The housing is constructed of aluminum and measures 5.25 x 2.65 x 1.25 inches, weighing 16 ounces .