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Pricelist: Retail Price (B2C) Pricelist
108kHz Ultrasonic Atomiser DIY Kit – DC 5V USB Humidifier Module with Mist Maker Transducer

108kHz Ultrasonic Atomiser DIY Kit – DC 5V USB Humidifier Module with Mist Maker Transducer

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SpecificationDetails
Operating VoltageDC 4.5V to 5.0V (USB Powered)
Resonant Frequency108kHz ± 3kHz
Power Consumption1.5W to 2.0W
Mist Output20ml to 40ml per hour
Transducer Diameter16mm / 20mm (Plate dependent)
Control InterfacePhysical Push Button (On/Off)
Atomized Particles< 5 Microns
Price
₹ 135.59 ₹ 135.59
(Tax included)

Product Description

The Ultrasonic Atomiser Module is built around a specialized driver circuit and a piezoelectric ceramic disc. Unlike traditional heat-based evaporators, this ultrasonic method is safer and more energy-efficient, producing a "cool mist" that does not alter the ambient temperature. The driver board includes an integrated timing function and a status LED. The transducer plate features thousands of laser-drilled micro-holes, ensuring a consistent and ultra-fine mist spray that can easily be absorbed into the air or directed through a small vent.

Key Features

  • USB Plug-and-Play: Can be powered by any 5V USB port, including power banks, laptops, or phone chargers.

  • Microporous Technology: The high-frequency vibration prevents mineral buildup on the disc, extending the operational life of the transducer.

  • Low Noise Operation: Runs silently, making it suitable for bedroom humidifiers or quiet office desktop gadgets.

  • Dry-Run Protection: Most versions include an automatic shut-off or low-current draw when water is not present to prevent overheating.

  • Compact Driver PCB: Small enough to be embedded inside 3D-printed enclosures or small plastic containers.

Technical Details

  • Drive Voltage (to disc): 60V to 80V AC (Internal step-up).

  • Wire Length: Approx. 10cm from PCB to Disc.

  • Mounting: Transducer plate typically requires a rubber gasket (included) for a waterproof seal.

Prototyping and Engineering Tips from Robogears

  • Wick Positioning: For the mist maker to start, the bottom of the transducer disc must be in contact with water. We recommend using a cotton swab or wick to draw water up to the disc surface rather than submerging the entire assembly.

  • The "Mist Face" Rule: The transducer disc has a front and a back. The side with the white ceramic/mesh center should face upwards (where the mist comes out), while the metal side should be in contact with the wet wick.

  • Cleaning the Mesh: If the mist output decreases over time, do not poke the micro-holes with a needle. Instead, use a cotton bud dipped in distilled white vinegar to gently wipe the surface and dissolve any calcium or mineral deposits.

  • Automation Tip: You can bypass the physical push button by soldering a jumper across the switch pads or using a transistor/MOSFET to trigger the "On" state via an Arduino or ESP32 for smart-home integration.

Package Includes

  • 1 x Ultrasonic Atomiser Driver Circuit Board

  • 1 x 108kHz Ultrasonic Transducer Disc (with cable)

  • 1 x Cotton Wick / Swab (Batch dependent)

Disclaimer

Do not touch the transducer disc while the module is powered on, as high-frequency vibrations can cause a mild stinging sensation. Ensure the driver PCB remains completely dry; only the transducer disc should interact with moisture.