Short answer: The SC-294 is a compact 48kHz UV ultrasonic cleaner with a 200ml SUS304 stainless steel tank, IPX7 waterproofing and built-in UV light — designed for daily cleaning of retainers, Invisalign aligners, night guards, dentures and braces, while also handling jewelry, eyeglasses and small household items. Two touch-controlled cycles (300s / 600s) make it a one-button solution for oral-appliance hygiene at home or on the go.

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SC-294 at a Glance: Full Specifications

Model	SC-294
Ultrasonic frequency	48 kHz
Tank capacity	200 ml (0.2 L)
Power	24 W
Tank material	SUS304 stainless steel
Housing material	ABS
Waterproof rating	IPX7
Disinfection	Built-in UV light
Cleaning cycles	300s / 600s dual cycle (touch control)
Voltage	12V (UK / US / AU / EU plug options)
Warranty	1 year
Package size / weight	23 × 15 × 12 cm / 0.65 kg
Color	White or customized (OEM/ODM)
Origin	Guangdong, China

All specifications from the official Souncrise product listing (Alibaba.com product ID 1601925247576).

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What Makes the SC-294 Different

1. 48 kHz high-frequency cleaning

The SC-294 runs at 48 kHz — above the 40 kHz standard — which creates finer, more numerous cavitation bubbles. Finer bubbles mean gentler-but-deeper cleaning: ideal for delicate dental appliances while still strong enough for everyday grime. The physics of cavitation is explained in detail below.

2. Built-in UV disinfection

Beyond ultrasonic cleaning, the SC-294's UV light provides an extra disinfection step, targeting bacteria left in the water after the cleaning cycle. This matters most for oral appliances that go back into your mouth minutes later.

3. IPX7 waterproof design

The whole unit is rated IPX7 — it can be briefly immersed in water without damage — which makes it safe to rinse, wipe and use around sinks without worrying about splashes. In this price class, IPX7 is a standout spec.

4. SUS304 stainless steel tank

The inner tank is food-grade SUS304 stainless steel — corrosion-resistant, easy to rinse, and safe for repeated contact with cleaning water. Many budget cleaners use plastic tanks; the SC-294 doesn't cut that corner.

5. One-touch dual cycles

Touch controls switch between a 300-second quick clean and a 600-second deep clean. No menus, no settings — suitable for every family member.

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What Can You Clean With It?

The SC-294 was designed around dental appliances, and it handles everyday household items just as well:

• Dental & orthodontic: retainers, Invisalign aligners, night guards, dentures, braces retainers
• Jewelry: rings, necklaces, earrings, bracelets
• Optics: eyeglasses, sunglasses, lens frames
• Household small items: watch straps, electric shaver heads, makeup brushes, small metal parts

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How Does Ultrasonic Cleaning Work?

An ultrasonic cleaner converts electrical energy into high-frequency sound waves via a transducer at the bottom of the tank. These waves create millions of microscopic bubbles in the water that collapse violently — a process called cavitation. Each collapsing bubble releases a tiny micro-jet that blasts dirt, biofilm and residues off surfaces, including the grooves and undercuts that brushing can't reach.

This is why ultrasonic cleaning is recommended by orthodontists and dentists for daily appliance hygiene: it removes the biofilm that chemical soaking alone leaves behind, without scrubbing that can scratch acrylic.

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Built by a Certified Ultrasonic Cleaner Factory

The SC-294 is manufactured by Guangdong Souncrise Technology Co., Ltd. (Zhuhai, China) — a dedicated ultrasonic cleaner manufacturer with in-house design, production and quality control. Every unit leaves a clean, controlled assembly line with batch inspection, and the product carries a 1-year warranty.

Souncrise supports OEM and ODM projects: custom colors, your brand logo, tailored packaging (corrugated / color / gift box), plug-type variants and private-mold development. The Alibaba listing offers tiered pricing from 200 sets up to 10,000+ sets, with samples available.

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FAQ

1. Is the SC-294 safe for Invisalign and retainers?
Yes. The 48 kHz frequency and water-only operation are safe for medical-grade thermoplastics used in aligners and retainers. Rinse the appliance first and use cool or lukewarm water.

2. What liquid should I use in the SC-294?
Plain filtered water for daily cleaning. For tougher stains, a mild neutral cleaning solution can be used sparingly — avoid alcohol, bleach and abrasive powders, which can damage acrylic and the tank.

3. How long does one cleaning cycle take?
Two preset cycles: 300 seconds (5 min) for routine daily cleaning and 600 seconds (10 min) for a deeper clean — selected with a single touch.

4. Is the SC-294 waterproof?
The unit carries an IPX7 rating, meaning it can withstand brief immersion in water — practical for sink-side use and easy rinsing. The 12V low-voltage design adds a layer of safety around water.

5. Can I clean jewelry and glasses with it too?
Yes. Jewelry (except pearls, opals and glued stones) and eyeglasses clean well in the same 200ml tank. Rinse items after cleaning and dry with a soft cloth.

6. What is the tank capacity and how much water do I use?
The tank holds 200ml (0.2L). Fill to the marked level — enough to cover the appliance without overfilling.

7. Does Souncrise offer OEM/ODM customization for the SC-294?
Yes. Custom colors, branding, packaging and plug types are available, and private-mold development is supported. Minimum order starts at 200 sets; samples can be requested first.

8. What warranty comes with the SC-294?
A 1-year warranty with free spare parts, return and replacement after-sales service.

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Bottom Line

The SC-294 packs the essentials of professional dental-appliance care — 48 kHz ultrasonic power, UV disinfection, IPX7 waterproofing and a SUS304 steel tank — into a compact 200ml device that costs a fraction of a dentist's chair cleaning. For families with retainers, aligners or dentures, it turns a daily chore into a one-button routine.

To buy, request samples, or discuss OEM/ODM branding for the SC-294, visit the official product page on Alibaba.com or contact Souncrise at en.souncrise.com.

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Sources: Souncrise SC-294 official Alibaba listing | Wikipedia — Ultrasonic cleaning | PubMed — ultrasonic cleaning research | American Dental Association