How should I clean the test tube after a test?

Clean with detergent made by mixing HCl (1+3) and ethanol at a 1:1 ratio, then shake for 15 seconds. Do not use a brush.

How should I store the test tube when not in use?

Soak the test tube in deionized water to keep it clean.

Ozone Meter Ozone Tester Pocket Colorimeter for Ozone Test in Water

Name: Ozone Meter Ozone Tester Pocket Colorimeter for Ozone Test in Water
Brand: Guangdong Huankai Biology Sci.&Tech. Co.,Ltd.
SKU: 2095604305

Guangdong, ChinaGuangdong Huankai Biology Sci.&Tech. Co.,Ltd.

US$250.00-390.00

5 Sets

Product profile

Customization

Available

Warranty

2 Years

Display

Digital

Appliance

Biochemistry, Water Analyze

Portable

Certification

ISO9001

Type

Water Analyze

Standard

Q/HK 080315

Transport Package

Standard Package

Specification

159× 68× 35mm

Trademark

HKM

Origin

China

HS Code

9031809090

Key features

2-Year Warranty Coverage: Covers all mechanical defects for a period of 2 years from the date of purchase.

ISO9001 Certified Quality: Manufacturing process and product quality meet international ISO9001 standards.

Factory Pre-Calibration: Device is calibrated before leaving the factory to save time on curve construction.

OEM Customization Service: Full customization, minor customization, and design-based customization available.

Long Battery Life: Provides at least 40 working hours on a single set of 4 batteries.

Portable Design: Compact size of 159x68x35mm and lightweight at 220g for easy field use.

Complete Reagent Kit: Includes 100 tests of ozone reagent, test tubes, batteries, and carrying case.

Company profile

Patents AwardedR&D CapabilitiesManagement Certification

Guangdong Huankai Biology Sci.&Tech. 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: Guangzhou Port, Shenzhen Port CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤8.67h

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad customization, R&D, ODM, OEM, inventory, and manufacturing coordination capabilities. It reports new products within the past year, an available SDK, quality assurance procedures, complaint and corrective-action procedures, and written inspection and supplier-assessment procedures. Export activity represents 21%–30% of total sales, with access to Guangzhou and Shenzhen ports and lead times within 15 working days in both peak and off-season periods. However, the supplier reports no overseas warehouse, showroom, agents, or branches, and provides overseas services in zero countries. The available information does not establish specific certifications, detailed financial strength, or identifiable customer case records.

Supplier typeThe supplier is a manufacturer and seller of experimental analytical instruments, with additional activities involving food detergents, disinfectants, fermentation-process optimization R&D, technical services, and certain food, packaging, health-food, and beverage activities. It also reports OEM service for well-known brands and valid manufacturing contracts with associated subcontractors, indicating a manufacturing-oriented supplier structure.

After-Sales capabilityThe supplier has documented and followed procedures for customer complaints and corrective and preventive actions, which supports structured after-sales issue handling. It has participated in ARAB LAB 2024 and offers overseas training, but it has no overseas agents or branches and reports overseas services in zero countries, limiting evidence of broad international service coverage.

R&D capabilityThe supplier reports new products during the past year, ODM capability, an available SDK, and independent innovation and product-technology advantages. These explicit statements support active R&D and technology-development capability.

Production capacityProduction-related evidence includes quality assurance, standardized finished-product inspection, inventory capability, valid contracts with associated subcontractors, 42 qualified suppliers, and lead times within 15 working days in both peak and off-season periods. These records indicate organized production and supply coordination capability, although production capacity volume is not stated.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM service, indicating a broad range of product-development and customization options.