What payment methods are accepted?

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

What metals can this device test?

It can test gold, platinum, silver, and other precious metal alloys, displaying K, PT, and S values.

Is the device easy to operate?

Yes, it features a simple two-step procedure: measure weight in air, then in water, with no sample cutting required.

AU-300K Measured Digital Density Meter High Precision Electronic Density Gauge

Name: AU-300K Measured Digital Density Meter High Precision Electronic Density Gauge
Brand: Guangdong Hongtuo Instrument Technology Co., Ltd.
SKU: 926873065

Guangdong, ChinaGuangdong Hongtuo Instrument Technology Co., Ltd.

US$399.00-699.00

1 Piece

Product profile

Customization

Available

Warranty

2 Years;Life-Long Maintenance

Certification

CE, FCC

Model NO.

AU-300K

Usage

Water Gold Tester

Density Resolution

0.001g/cm3

Weight Resolution

0.005g

Minimum Weight

Power Supply

Europe Standard AC 100V - 240V

Interface

RS-232

Delivery Time

2-7 Days

After-Sale Service Provided

Yes

Testing Before Delivery

Yes

OEM Service

Yes

Transport Package

Carton Packing

Trademark

Quarrz

Origin

Dongguan, China

HS Code

9027809900

Production Capacity

300 Sets/Month

Key features

High Precision Measurement: Density resolution of 0.001g/cm3 and weight resolution of 0.005g for AU-300K.

Multi-Metal Testing: Tests gold, platinum, silver, and alloys with wide K, PT, and S value ranges.

Lifetime Maintenance: Comprehensive life-long maintenance support for all purchased instruments.

OEM Service Available: Custom logo printing and OEM services provided by the original manufacturer.

Fast Delivery: Delivery time within 2-7 days via DHL, UPS, FEDEX, or TNT.

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

Easy Operation: Simple two-step procedure with no need to cut or bundle samples.

RS-232 Interface: Standard RS-232 interface for convenient connection to PC and printer.

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: ≤1.84h

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.