Our Solutions

Nine systems,
one ecosystem.

Everything Circles of Knowledge supplies, grouped the way a project is specified.

Smart 3D Face Recognition Lock
Automatic Door Lock

Smart 3D Face Recognition Lock

Elevate your home security to the next level with the D30 Smart 3D Face Recognition Door Lock. Engineered with cutting-edge biometric technology and a sleek, modern aesthetic, the D30 delivers a truly hands-free, keyless entry experience. Combining a high-definition visual cat-eye camera with advanced 3D structured light face recognition, it ensures absolute security while offering seamless convenience for every member of the family.

Price on requestView
Smart Door Lock
Semi-Auto Door Lock

Smart Door Lock

Upgrade your home or office security with the Smart Fingerprint Lever Door Lock. Combining sleek, modern aesthetics with robust multi-layer security, this intelligent handle lock offers a seamless keyless entry solution tailored for contemporary wooden and metal interior doors. Engineered with a high-grade aluminum and zinc alloy body, the lock features a highly responsive biometric fingerprint sensor integrated right into the handle, allowing you to unlock your door in a single, natural motion. Fully compatible with the Tuya Smart ecosystem via BLE, it grants you full control over access permissions, user management, and cloud-based data tracking directly from your smartphone. With its universal 60mm single-latch design, the H168 serves as the perfect hassle-free replacement for your standard traditional door handles, eliminating the need for complex drilling or heavy modifications.

Price on requestView
Smart 3D Face Recognition Lock
Automatic Door Lock

Smart 3D Face Recognition Lock

The product is a high-tech, multi-functional door lock designed for modern smart homes, offering advanced biometric security, remote access, and seamless integration with smart home systems. With 3D facial recognition, palm vein scanning, fingerprint unlocking, and virtual password protection, this smart lock ensures maximum security while providing hassle-free access. Equipped with dual 5000mAh + 2500mAh batteries, a USB emergency power port, and a mechanical key backup, it guarantees uninterrupted operation. The lock supports WiFi and ZigBee connectivity, allowing remote control via the Tuya Smart App, including real-time alerts, video intercom, and automated smart home scenes. Built with anti-pry alarms, tamper-proof alerts, and auto-locking, the Tuya Smart Lock is the perfect upgrade for home, office, or rental properties, combining cutting-edge security with smart convenience.

Price on requestView
Smart 3D Face Recognition Lock
Automatic Door Lock

Smart 3D Face Recognition Lock

The product  is a cutting-edge electronic door lock that integrates advanced biometric technology with smart home connectivity, designed for modern households and commercial spaces. Featuring  10 unlocking methods (including 3D structured-light facial recognition, palm vein scanning, fingerprint, PIN code, IC card, etc.), it enables keyless, secure access. Equipped with a 5-inch HD touchscreen for real-time video intercom and remote management (via Tuya App), it is powered by dual lithium batteries (8900mAh total) for extended operation. Its robust metal construction, anti-tamper alarms, and error-triggered lockout ensure comprehensive physical and digital security.

Price on requestView
Control Panel Mini
Control Panel

Control Panel Mini

Smart Control Panel Mini is a multifunctional interactive device that integrates a screen, three physical buttons, three relay channels, and infrared remote control. Through the screen, various devices and scenes at home can be controlled. The three relay channels can replace traditional switches to control three lighting devices. The buttons can be customized for relay control or scene control. Additionally, the built-in infrared remote control can directly control infrared devices such as TV and air conditioning at home. In addition to controlling devices and scenes, the Smart Control Panel Mini also supports smart cameras, visual doorbells, and visual door locks. Users can view camera footage on the screen and directly unlock the door on the screen by integrating with the visual door lock.

Price on requestView
Control Panel S
Control Panel

Control Panel S

The smart control panel S adopts a 4-inch touch full screen, developed based on the Linux platform, supports the installation of a standard Europe bottom box, can seamlessly replace the switch panel,  and integrates Zigbee gateway and Alexa voice service simultaneously. Interact in various ways to help users quickly and conveniently manage smart devices and scenes at home

Price on requestView
Control Panel 8 Pro
Control Panel

Control Panel 8 Pro

The Smart Control Panel 8 Pro, powered by Android, serves as a gateway, interactive hub,  and scene control panel for the home. Installed in a standard 86 wall box, users can easily  manage connected devices via touch or voice. As the core of whole-home automation, the Control Panel puts control at your fingertips— playing music, activating lights and AC when arriving home, or switching to nighttime security with smooth, responsive interactions across scenarios. Its 8-inch HD screen offers clear visuals, while built-in high-fidelity speakers and dual amplifier ports support immersive sound for any mood. Integrating with a voice assistant  enables natural, hands-free control of the entire home, enhancing daily life with ease and  quality.

Price on requestView
Control Panel Max
Control Panel

Control Panel Max

This product is suitable for indoor public spaces, and integrates a  multi-functional central control that integrates control, interconnection, entertainment, and security. Compatible with a variety of product forms, it adopts standard 86 in-wall base design or desktop base, and is used with wall brackets to fix the central control host panel and hang it on the wall. It mainly provides gateway function, scene panel, device video interconnection, music playback, and other functions. Users can control and manage different types of smart devices under the account through physical buttons, screen, voice, and other interactive methods.

Price on requestView
Smart Door Lock
Semi-Auto Door Lock

Smart Door Lock

​ Recurring passcode with cyclic period: Enables housekeepers to clean the room within the valid period, eliminating the need to send new passwords repeatedly. ​ Real-time unlock records: All unlock activity is synced to the app instantly. ​ Network-free password sharing: Passwords can be sent via SMS without an internet connection. ​ Automated timed passcodes: Guests access expires automatically, blocking room entry after checkout. No need to chase unpaid rent—access revocation ensures security.

Price on requestView
Smart Door Lock
Semi-Auto Door Lock

Smart Door Lock

​ 6 Ways to Unlock: Fingerprint Unlock; App Unlock; Remote WiFi Unlock; Password/PIN Unlock; Card Unlock; Mechanical Keys Unlock. ​Simple Door Handle Design:  Adaptable to various door types and usage scenarios. ​Multi-Level Administrator Settings: Manage access permissions for different users (e.g., family members, Airbnb guests, or staff). ​Real-Time Unlock Records: Check unlocking history anytime via the app to monitor home security. FPC Fingerprint Sensor: High-precision recognition ensures fast and secure access. ​Built-In Doorbell Function: Visitors can press the keypad to alert the owner indoors.

Price on requestView
Smart Door Lock
Semi-Auto Door Lock

Smart Door Lock

​Built-In Doorbell Function: Visitors can press the bell outside to send a real-time notification to the owner's mobile app. ​5 Secure Unlocking Methods: Biometric Fingerprint Recognition; Tuya Smart App Control; Custom Passcode/PIN; RFID Card; Physical Backup Key. Temporary Password Generator: Automatically generates temporary passwords that expire after use, preventing unauthorized access. ​Remote Management via App: Control lock settings and permissions in real-time. View detailed access history (time, user, and method). Receive instant security alerts on your phone. ​Advanced Security Technology: Military-grade encryption for WiFi and app connectivity. Tamper-proof design with anti-pry alarm.

Price on requestView
Smart Video Doorbell
Smart Video Doorbell

Smart Video Doorbell

24/7 Precision Security: Equipped with SMART NIGHT VISION and a 150° wide-angle lens, it ensures blind-spot-free monitoring day and night. The 100Hz micro-motion detection and PIR human sensing technology precisely detect human activity (e.g., package delivery, suspicious loitering) while filtering out pet triggers. With an IP65 waterproof/dustproof rating, it withstands harsh conditions from heavy rain to extreme temperatures (-20°C to 50°C). Real-Time Zero-Latency Interaction:  Enable crystal-clear two-way audio (noise-canceling) via smartphone app, with live video response under 0.3 seconds—instant alerts when visitors ring. The built-in PowerSpeaker and noise-reducing microphone ensure crisp communication, even in noisy environments, for remote verification of deliveries or guests. Smart Durability, Simplified Design:  Powered by Dual 27100 rechargeable batteries (4500mAh each) , it eliminates power anxiety. The minimalist black/white design blends with modern homes, while military-grade anti-pry bolts and hidden keyholes balance security and aesthetics. Local encrypted storage (Chatlog) and cloud backup safeguard privacy, which is ideal for residential and commercial use.

Price on requestView
Smart Door Lock

Smart Door LockD-401

Coming soon
Smart Door Lock

Smart Door LockD-402

Coming soon
Smart Door Lock

Smart Door LockD-403

Coming soon
Smart Door Lock

Smart Door LockD-404

Coming soon
Smart Door Lock

Smart Door LockD-405

Coming soon
Smart Door Lock

Smart Glass LockG-501

Coming soon
Smart Door Lock

Smart Glass LockG-502

Coming soon
Smart Door Lock

Smart Glass LockG-503

Coming soon
Smart Electrical

Smart Button GL Switch

Coming soon
Smart Electrical

Smart Socket PC outlet

Coming soon
Smart Electrical

Smart Socket GL outlet

Coming soon
Smart Electrical

Smart Button Marble Switch

Coming soon
Smart Electrical

Smart Button Metal Switch

Coming soon
Smart Security

Smart Video Intercom for apartment buildings

Coming soon
Smart Security

Smart Video Intercom for villas and apartment units

Coming soon
Smart Security

Smart Video Intercom for apartment units

Coming soon
Smart Security

Garage controller

Coming soon
Smart Sensors

IR Blaster

Coming soon
Smart Water Solutions

Water Level Detector

Coming soon
Smart Water Solutions

Smart Water Timer

Coming soon
Smart Thermostat

Smart Fan Coil Unit Thermostat

Coming soon
Smart Sound System

E4 Smart Amplifier Panel

Coming soon
Smart Sound System

E8 Smart Amplifier Panel

Coming soon
Smart Sound System

E8K Smart Amplifier Panel

Coming soon
Smart Sound System

E11K Smart Amplifier Panel

Coming soon

Design your setup.

Upload your floor plan, drop CK devices room by room, and save the layout to revisit anytime.