Question 1

Are you a manufacturer or trading company?

Accepted Answer

We are a professional manufacturer founded in 1992, with our own R&D center, production factory and QC laboratory. We specialize in environmental sensing instruments including humidity & temperature sensors, water quality analyzers and disinfectant detection devices. All products are independently developed and produced by our factory.

Question 2

Where is your factory located? Can I visit?

Accepted Answer

Our factory is located in Dalian, China. Warmly welcome customers from all over the world to visit our factory and R&D center. Please contact our sales team in advance to arrange the visit schedule.

Question 3

Do you have ISO certification?

Accepted Answer

Yes, we are ISO9001 certified. All production processes and quality management systems strictly follow ISO9001 standards. Every product undergoes 100% full inspection before delivery.

Question 4

Do your products have CE certification?

Accepted Answer

Yes, our products comply with CE standards for European market. Certification documents can be provided upon request.

Question 5

Do you support OEM / ODM service?

Accepted Answer

Yes, we provide full OEM & ODM services, including: Custom logo printing on products and packaging, Private label and branded color box packaging, Customized measurement range, output signal and housing material, Multi-language user manual, Customized product specifications based on your application.

Question 6

What is the MOQ for OEM orders?

Accepted Answer

MOQ for OEM service depends on specific product type and customization requirements. Generally, MOQ starts from 50-100 pcs for standard products with logo printing. Please contact our sales team for detailed OEM quotation.

Question 7

Can you customize the output signal or interface?

Accepted Answer

Yes, we support various output options including I2C, RS485 Modbus, analog voltage (0-5V, 1-3.6V), 4-20mA current output, etc. Please tell us your specific requirements and we will customize accordingly.

Question 8

Can I get a sample first? What is the sample price?

Accepted Answer

Yes, sample order is available. Sample price is based on specific product model. Sample fee can be refunded when you place a formal bulk order. Please contact us for sample quotation.

Question 9

Do you offer discount for bulk orders?

Accepted Answer

Yes, we offer tiered pricing for bulk orders. The larger the order quantity, the better the unit price. Please contact our sales team for the best quotation based on your required quantity.

Question 10

What is the lead time?

Accepted Answer

Sample order: 3-7 working days after payment confirmed, Standard bulk order: 15-25 working days after deposit confirmed, OEM / customized order: 25-40 working days (depends on customization complexity).

Question 11

What shipping methods do you provide?

Accepted Answer

We offer flexible shipping options: Express: DHL, FedEx, UPS, TNT (3-7 days, door-to-door, for samples & small orders), Air freight: via international airport (5-10 days, for medium orders), Sea freight: FCL / LCL (20-40 days, for large bulk orders, most cost-effective), We also accept your nominated freight forwarder.

Question 12

How is the product packaged?

Accepted Answer

All products are packed in standard export-grade cartons with EPE foam buffer inside to ensure safe international transportation. Each unit is individually wrapped and labeled with model, specification and serial number. Customized branded packaging is available for OEM orders.

Question 13

What is the warranty period?

Accepted Answer

We provide 12 months warranty for all our products from the date of shipment. During the warranty period, we offer free repair or replacement for any quality problem caused by manufacturing defects.

Question 14

What if the product has quality problem after receiving?

Accepted Answer

Please contact our sales team immediately with photos or video of the problem. We will analyze the cause within 24 hours and provide solution: replacement, refund or technical guidance. Customer satisfaction is our top priority.

Question 15

Do you provide technical support?

Accepted Answer

Yes, we have a professional technical support team. We provide pre-sales consultation, product selection guidance, installation instructions and after-sales technical support. You can reach us via email, phone or online chat anytime.

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