What is the minimum order quantity?

The minimum order quantity is 1 set.

What payment methods are accepted?

We accept LC, T/T, PayPal, and Western Union.

What is the density resolution of the AU-900K?

The density resolution is 0.001 g/cm3, and weight resolution is 0.01g.

AU-900K Digital Electronic Gold Testing Machine, Automatic Metal Analyzer Tester Karat Meter

Name: AU-900K Digital Electronic Gold Testing Machine, Automatic Metal Analyzer Tester Karat Meter
Brand: Guangdong Hongtuo Instrument Technology Co., Ltd.
SKU: 2033988415

Guangdong, ChinaGuangdong Hongtuo Instrument Technology Co., Ltd.

US$399.00-799.00

1 Piece

Product profile

Customization

Available

Warranty

3 Years;Life-Long Maintenance

Density Meter Type

Gold Testing Machine

Model NO.

AU-900K

Certification

CE, FCC

Usage

Smart Densitometer For Metal,alloy

Power Supply

Europe Standard AC 100V - 240V

Density Resolution

0.001 g/cm3

Weight Resolution

0.01g

Minimum Weight

Interface

RS-232

Delivery Time

stock

After-Sale Service Provided

Yes

Testing Before Delivery

Yes

Stock

Yes

Transport Package

Carton Packing

Trademark

Quarrz

Origin

Dongguan, China

HS Code

9027809900

Production Capacity

300 Sets/Month

Key features

Lifetime Maintenance Support: Provides life-long maintenance service with a 1-year instrument guarantee.

High Precision Measurement: Achieves density resolution of 0.001 g/cm3 and weight resolution up to 0.001g.

Non-Destructive Testing: Tests gold, platinum, and silver purity without cutting samples or leaving scratches.

Multi-Metal Analysis: Measures karat, percentage, and density for gold, platinum, silver, and alloys.

OEM Branding Service: Original manufacturer offering OEM services to print your logo on instruments.

Fast Delivery Stock: Items available in stock with shipping within 3-5 working days via FedEx/DHL.

CE & FCC Certified: Products meet international safety standards with CE and FCC certifications.

RS-232 Data Interface: Connects easily to PC and printer for data recording and result printing.

Company profile

Cooperated with Fortune 500High Repeat Buyers ChoicePatents AwardedManagement Certification

Guangdong Hongtuo Instrument Technology Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 11 years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤3.29h

AI-Powered supplier vetting

SummaryHongtuo demonstrates broad manufacturing, customization, and service capabilities. It operates customer service and after-sales centers in four Chinese cities, maintains documented quality and service procedures, and holds ISO9001:2015 and CE certifications. Its manufacturing scope includes tapping, laser marking, drilling, cutting, and welding, with in-stock capability and contracts with associated subcontractors. The supplier reports recent new-product activity, ODM capability, SDK availability, and multiple customization options. Evidence also indicates cooperation with Fortune 500 companies and a repeat-buyer proportion of 50%–80%. However, the provided information does not identify the supplier type, and its financial information is limited to reporting years rather than substantive financial indicators. It has no overseas warehouse or showroom, which may limit overseas physical service coverage.

CertificationsHongtuo reports an ISO9001:2015 management-system certificate and CE product compliance certification. These are explicit certifications relevant to quality management and product conformity.

After-Sales capabilityHongtuo has customer and after-sales service centers in Dongguan, Beijing, Shenzhen, and Hangzhou, offering technical consultation, solutions, installation training, business processing, and after-sales service. It also reports documented service procedures, corrective and preventive action procedures, and complaint-handling procedures with records.

R&D capabilityHongtuo reports new products during the past year, ODM service, SDK availability, and two R&D engineers responsible for technical support and new-product development. These facts provide explicit evidence of active R&D and product-development capability.

Production capacityThe supplier reports tapping, laser marking, drilling, cutting, and welding facilities, documented finished-product inspection instructions, two quality-control staff, five quality-control test devices, inventory capability, and valid contracts with associated subcontractors. This supports a defined production and quality-control operation.

Customization capabilityHongtuo explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. The same range is reported across its design and R&D capability information, indicating broad customization coverage.

Client casesHongtuo reports cooperation with Fortune 500 companies and a repeat-buyer proportion of 50%–80%. These statements provide direct evidence of notable customer experience and repeat purchasing, although no customer names or project details are supplied.