KERUI KR-W211: Next-Generation Smart WiFi & GSM Alarm System
The KERUI KR-W211 is a high-end GSM/WiFi security alarm system equipped with a 2.4-inch TFT color screen, touch keypad, and an ultra-powerful CPU master control for reliable, long-term performance.
It connects wirelessly with PIR motion sensors, door/window contacts, smoke and gas detectors, remote control keyfobs, and panic buttons. When triggered, the system instantly displays the exact alarm zone on the TFT screen, sends push notifications via the Tuya App, and automatically dials your preset emergency phone numbers.
Ideal for homes, villas, offices, stores, factories, and commercial spaces across the UAE to ensure complete protection of your property and family.
System Components Breakdown
Smart Alarm Control Panel
Description: Features a 2.4-inch color screen, responsive touch keypad, built-in siren, and powerful CPU master supporting both WiFi and GSM cellular communication.
Remote Controllers & RFID Tags
Description: Convenient arming/disarming keyfobs with SOS panic button, plus quick RFID cards for seamless access management.
Door / Window Magnetic Sensor
Description: Compact wireless sensor designed to protect entry points. Triggers immediate alert upon door or window opening.
Wireless PIR Motion Sensor
Description: Advanced wide-angle motion detection with anti-false alarm technology. Detects unauthorized movement and triggers the alarm instantly.
Technical Specifications
| Feature / Property | Specification / Parameter |
| Brand / Model | KERUI (Tuya Smart WiFi Alarm Kit) |
| Input Voltage | DC 5V – 12V (via Power Adapter) |
| Working Current | < 200 mA |
| Standby Current | < 80 mA |
| Wireless Frequency | 433 MHz (ASK Mode) |
| Wireless Encoding Format | eV1527 |
| WiFi Standard | IEEE 802.11 b/g/n (2.4GHz) |
| App Support | Tuya Smart / Smart Life (iOS & Android) |
| Voice Assistant Compatibility | Amazon Alexa & Google Assistant |
| Cellular Network (Optional/Model dependent) | GSM / 4G LTE (850/900/1800/1900 MHz) |
| Accessory Capacity | Up to 50–100 Wireless Detectors & Remote Controllers |
| Wireless Transmission Range | Up to 80m – 100m (Open / Unobstructed Area) |
| Built-in Siren Volume | 80dB – 110dB |
| Backup Battery | 3.7V Rechargeable Lithium Battery |
| Operating Temperature | -10°C to +55°C |
| Relative Humidity | < 80% (Non-condensing) |
Why Choose KERUI Smart WiFi Alarm System?
The KERUI Smart WiFi Tuya Alarm System is the ultimate security solution for home and personal safety, designed to deliver instant alerts, seamless smart home integration, and total peace of mind.
Smart App & Voice Control: Manage your security system anywhere via the Tuya Smart / Smart Life app, fully compatible with Amazon Alexa and Google Assistant.
Dual Protection (WiFi & Cellular): Receives instant push notifications via WiFi, with optional GSM/4G cellular backup to ensure alerts get through even during internet outages.
Expandable & Customizable: Supports up to 50–100 sensors and accessories, including motion detectors, door/window contacts, and wireless sirens.
Instant Loud Alarm: Equipped with a powerful built-in siren (up to 110dB) to deter intruders instantly and notify neighbors upon detection.
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