Frequently Asked Questions

Founded in 2016, Zhongshan Boantai Electric Technology Co., Ltd. is a high-tech enterprise specializing in the R&D, manufacturing, and sales of flow sensors, integrated anti-electric-wall safety valves, and thermostats. We are a recognized leader in large-current thermostat technology and are building a high-precision flow sensor manufacturing base.

We operate a modern facility of approximately 3,000 m² with a professional team of 80 people. Our fully automated production line -- the first of its kind in the high-power thermostat industry -- achieves a daily output of over 50,000 units. Our production and sales volume rank among the top in the industry.

Boantai has established long-term partnerships with leading appliance manufacturers including Haier, Midea, Joyoung, and Electrolux, among others. We serve as a trusted supply chain and technical partner for both domestic and international brands.

Our Flow Sensor Division produces a comprehensive range of products including:

• Pulse flow sensors
• Hall effect flow sensors
• Photoelectric flow meters
• Water flow switches (reed switch and signal-type)
• Water control flow meters

These are widely used in water heaters, washing machines, coffee machines, wall-hung boilers, water purifiers, smart toilets, steam cleaners, dishwashers, and robotic vacuums.

Our Thermostat Division specializes in high-power snap-action (bimetal disc) thermostats, including the KSD302 and KSD308 series. The KSD308 supports currents up to 60A, making it one of the highest-capacity thermostats available. These are designed for instant electric water heaters, storage water heaters, heat pump systems, solar water heaters, electric wall-hung boilers, commercial water boilers, commercial coffee machines, and other high-power appliances.

Our products serve a broad spectrum of smart home and industrial applications, including:

Our products have earned multiple international certifications:

Notably, Boantai is the first domestic company to obtain UL certification for both single-phase and three-phase high-current thermostats. All products comply with EU RoHS and REACH regulations.

We strictly adhere to multiple international standards including GB 14536.1 (Chinese national standard), EN 60730 (European standard), and UL 873 (North American standard). Our ISO 9001:2015-certified quality management system ensures consistent product quality across every production batch.

Quality assurance is at the core of everything we do. Our approach includes:

• Fully automated production lines to minimize human error
• Professional testing laboratory with aging test benches, temperature test stations, and Hall effect testers
• Rigorous incoming material inspection, in-process control, and final product testing
• Target return rate of less than 400 ppm

Yes. We have a dedicated design and engineering team that provides comprehensive customization services covering dimensions, structure, functionality, and materials. We respond quickly to individual client requirements and can support rapid prototyping for new product development.

Lead times vary depending on order volume and customization requirements. For standard products, our high-capacity automated production lines allow us to fulfill large orders efficiently. For custom projects, our engineering team works closely with clients from design through delivery. Please contact us directly for a detailed timeline based on your specific needs.

Absolutely. Our products hold UL (North America), TUV and CB (Europe/international), and CQC (China) certifications, enabling us to serve global markets. We comply with EU RoHS and REACH environmental regulations. Expanding into overseas markets is a key part of our strategic vision, and we already partner with international brands such as Electrolux.

Boantai holds a total of 61 patents -- 6 invention patents and 55 utility model patents. This extensive intellectual property portfolio reflects our commitment to continuous innovation and technical leadership in the flow sensor and thermostat industries.

We operate a professional in-house testing laboratory equipped with comprehensive inspection instruments, including:

• Aging test benches for long-term reliability validation
• Temperature test stations for precision thermal performance
• Hall effect testers for sensor calibration
• Full suite of electrical safety and performance testing equipment

Several factors distinguish our thermostats in the market:

• Industry-highest current rating: Our KSD308 series supports up to 60A, among the highest in the industry
• First fully automated production: We pioneered full automation in high-power thermostat manufacturing
• First domestic UL certification: The first Chinese company to achieve UL certification for both single-phase and three-phase high-current thermostats
• Extensive patent protection: 61 patents securing our proprietary technology