- Company
- Shenzhen Kangzhi Technology Co., Ltd.
- Markets
- Europe · North America · Middle East (GCC)
- Office
- Shenzhen Kangzhi Technology Co., Ltd.
Longgang District, Shenzhen, Guangdong, China - Working hours
- Monday – Friday, 09:00 – 18:00 (China time, GMT+8)
How fast do you reply?
We aim to respond within one business day on working days (China time, GMT+8).
Can I order samples before placing a wholesale order?
Yes. Tell us the models and destination. Sample terms depend on SKU and shipping method, and sample orders are typically fulfilled within 3–7 working days.
What is your MOQ for wholesale smart locks?
MOQ depends on the model and whether you need OEM customization. Standard SKUs often start at one piece for samples, with volume tiers starting at a few hundred units for OEM branding. Share your target quantity and we will confirm.
Do you support OEM or private-label smart locks?
Yes. We offer logo, packaging, firmware branding, and related customization for qualified wholesale partners. OEM minimums vary by SKU and customization level.
How do I choose between Tuya and TTLock?
TTLock is popular for apartment, rental, and hotel operators who need local access management. Tuya works well with smart-home ecosystems and brands that already use the Tuya platform. We can recommend the right option based on your market and user base.
What certifications do SJJ smart locks have?
Certified products carry CE, FCC, and RoHS marks where applicable. Ask sales for the exact certificates matching the SKU and destination market you plan to import into.
Where is SJJ located?
SJJ is the smart lock brand of Shenzhen Kangzhi Technology Co., Ltd., based in Longgang District, Shenzhen, Guangdong, China.
Which markets does SJJ serve?
We ship to distributors, importers, and project buyers across Europe, North America, and the Middle East (GCC), with SKUs matched to regional door standards and compliance requirements.
How long does production and shipping take?
Sample orders ship within 3–7 working days. Bulk production lead time depends on order quantity and customization level — typically 15–30 working days. Shipping time depends on the freight method and destination.
Are you a smart lock manufacturer or a trading company?
We are a manufacturer. Shenzhen Kangzhi Technology runs an in-house smart lock production line including PCB assembly, SMT, firmware programming, assembly, testing, and packaging.
