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White rectangular ultrasonic cleaner with stainless steel tank and blue accents

Metra M9B105 Pro 50KHz Ultrasonic Cleaner 304 Stainless Steel

SKU CH-K6C6-KA0XR MPN M9B105

A 50 kHz ultrasonic cleaner with a 304 stainless-steel tank cleans jewellery, eyewear, dentures and small accessories in minutes

  • ColorWhite
  • FeaturesUltrasonic Jewelry Cleaner*1,Watch Stand*1,Charging Cable*1,
  • Cleans jewelry and eyewear in minutes using 50KHz ultrasonic waves
  • Dual-frequency technology reaches intricate grooves without damaging delicate gemstones
  • 304 stainless steel tank resists corrosion and prevents leaks
  • 2025 model includes watch stand, charging cable and cleaning cloth
  • Suitable for dentures, coins, watch straps and hygiene items

Purpose-built cleaner

The Metra M9B105 Pro is a 50KHz ultrasonic cleaner constructed from 304 stainless steel. It targets jewellery, dentures, eyeglasses, rings, coins, watch straps and hygiene items. Dual-frequency transducers create microscopic cavitation bubbles that reach intricate grooves. The sealed tank prevents leaks during repeated use.

Ideal users and limits

Suits owners who want a compact device for regular cleaning of small valuables and personal accessories. Buyers needing to remove tarnish or oxidation should note this unit does not address those effects. Larger instruments or bulk loads will not fit the internal chamber. No specialised cleaning fluid is included in the package.

Deciding specification

The operating frequency is fixed at 50KHz, which determines the cavitation intensity for delicate items. The 304 stainless steel tank provides corrosion resistance for water-based solutions. The 2025 model revision adds dual-core transducer technology for finer bubble distribution. Verify that 50KHz matches the cleaning requirement before purchase.

Highlights

  • Cleans jewelry and eyewear in minutes using 50KHz ultrasonic waves
  • Dual-frequency technology reaches intricate grooves without damaging delicate gemstones
  • 304 stainless steel tank resists corrosion and prevents leaks
  • 2025 model includes watch stand, charging cable and cleaning cloth
  • Suitable for dentures, coins, watch straps and hygiene items

Specifications

BrandMetra
ColorWhite
FeaturesUltrasonic Jewelry Cleaner*1,Watch Stand*1,Charging Cable*1,Cleaning Cloth*1, Rich Blue, false
ModelM9B105 Pro

Questions about this item

How long can the M9B105 Pro run continuously before the 50 KHz transducers hit a thermal limit?

The 50 KHz dual-core transducers are rated for extended daily operation; the seamless 304 stainless tank dissipates heat so the unit can complete multiple cleaning cycles back-to-back without a forced cool-down pause.

What noise level and heat output should I expect when the cleaner runs all day?

The 50 KHz ultrasonic frequency operates above the audible range, so the machine emits only a faint hum and the 304 stainless tank stays warm to the touch rather than hot during prolonged use.

Which power source must I already have to operate the M9B105 Pro?

The included charging cable connects to any standard USB power adapter or powered USB port you already own, supplying the 50 KHz generator without requiring a dedicated mains lead.

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