Shocking Fact: Lab tests show 1 in 3 budget "ultrasonic cleaners" are completely non-functional! Learn to spot counterfeits before they damage your valuables.
Core Identification Methods
1. Transducer Inspection (The Heart of the Machine)
✅ Genuine Features:
Titanium alloy casing (non-magnetic)
Laser-welded joints (smooth concave surface)
Impedance 28-32Ω (measured with multimeter)
❌ Fake Indicators:
Magnetic steel casing (painted silver)
Glued "fake welds" (yellow adhesive visible)
Abnormal impedance (<15Ω or >50Ω)
Field Test: Stick a magnet to the transducer base - if it sticks, it's fake.
2. Performance Verification Tests
▎ Frequency Validation
1. Download "Spectroid" audio analyzer app
2. Fill tank 80% with water
3. Hold phone 5cm above water surface
4. Check peak frequency (real units ±1kHz of claimed value)
Fake alert: No clear frequency peak or >3kHz deviation
▎ Power Verification Formula
True Power (W) = ΔT(℃) × Water (kg) × 4.2 ÷ Time (s)
Example: 5L water heats 12℃ in 10min = 420W
Scam sign: Claimed 600W but实测<400W
3. Structural Red Flags
Component
Genuine Spec
Fake Version
Risk Level
Tank Material
304 Stainless (Ni>8%)
201 Stainless (Mn超标)
★★★★★
Waterproofing
IPX6 (Fully potted)
Silicone gasket only
★★★★☆
Control Board
TI/Infineon chips
Sanded remark chips
★★★★☆
Power Cord
≥1.5mm² copper
0.75mm² recycled copper
★★★★★
Certification Authentication
1. Mandatory Marks
Industrial: CE + EMC + RoHS (EU)
Medical: FDA 510(k) clearance (US)
Japan: PSE Diamond mark
2. Patent Verification
Search numbers at:
USPTO.gov (US patents)
CNIPA.gov.cn (Chinese patents)
Consumer Rights Protection
1. Evidence Collection
Unboxing video (focus on transducer welds)
Third-party test report (~$200 fee)
Screenshot of false advertising
2. Legal Compensation
Under Consumer Law: 3x refund for fraud
Requires original purchase invoice
Conclusion Spot fake ultrasonic cleaners with the "3-Check Rule":
