Kit Components
A3 Home Gateway (central control hub)
T1C PIR Motion Sensor
T2C Door/Window Contact Sensor
T3C Smart Button
A3 Home Gateway
Model: CS-A3
Power Input: DC 5V/1A (via micro-USB or Type-C)
Max Power Consumption: 3W
Connectivity: Ethernet (RJ45), Wi-Fi 2.4GHz, ZigBee 3.0, Bluetooth 5.3
Device Support: Up to 64 connected devices (32 battery-powered max)
Operating Temperature: -10°C to 55°C
Operating Humidity: ≤95% (non-condensing)
Dimensions: 70mm (diameter) × 25mm (height)
Weight: 71g
T1C PIR Motion Sensor
Type: Passive Infrared (PIR)
Detection Range: Up to 7 meters
Detection Angle: 90° horizontal and vertical
Pet Immunity: Optional shield included
Battery: CR2450 (approx. 1–2 years lifespan)
Connectivity: ZigBee 3.0
Mounting: Peel-and-stick or magnetic
Operating Temperature: -10°C to 55°C
Humidity: ≤95%
Dimensions: 43.5mm × 32mm (sensor), 29mm × 9.5mm (base)
Weight (with package): ~92g
T2C Door/Window Sensor
Type: Magnetic contact sensor
Trigger Distance: 25mm (wood), 15mm (metal)
Battery: 2 × CR1632 (approx. 2 years with 30 triggers/day)
Connectivity: ZigBee 3.0
Mounting: Peel-and-stick
Operating Temperature: -10°C to 55°C
Humidity: ≤95%
Dimensions: 53.5 × 22.5 × 13.5 mm (main), 32 × 10.5 × 13.5 mm (magnet)
Weight (with package): ~80g
T3C Smart Button
Functionality: Single press (Arm/Disarm), Long press >2s (Emergency alert or custom actions)
Battery: CR2032 (up to 2 years, ~15 presses/day)
Connectivity: ZigBee 3.0
Mounting: Portable or adhesive
Operating Temperature: -10°C to 55°C
Humidity: ≤95%
Dimensions: 40.6mm (diameter) × 12.3mm (height)
Weight (with package): ~68g
Smart Features
Control and notifications via EZVIZ App
Triggers auto-recording on linked EZVIZ cameras
Voice Assistant Support: Google Assistant, Amazon Alexa, Apple HomeKit, and Matter
Easy installation with adhesive mounts
In the Box
A3 Home Gateway with power adapter and USB cable
T1C Motion Sensor with pet shield
T2C Door/Window Sensor
T3C Smart Button
Adhesive tape strips
Quick Start Guide and Warranty Info