Ezviz Security Alarm kit Packages included : 1x A1 Internet Alarm Hub 1x T6 Wireless Open-Close Detector 1x K2 Remote Control 1x T1PIR Sensor Optimal protection This comprehensive wireless security kits meets all your security needs Easy installation We’ve pre-paired the T6, K2 and T1 with the A1 for you. All you have to do is scan the QR code on the A1, follow the voice guidance, and you are good to go! The A1: the heart of your security system The A1 is a wireless security hub which connects to Wi-Fi and up to 32 EZVIZ sensors. The T6: maximum security Triggered when a door or window is opened or moved at an angle greater than 3° The K2: control your security A lightweight and portable remote control that allows you to switch conveniently between security modes. The T1, detecting infrared radiation emitted by humans The T1 has a wide viewing angle of 100° and disregards movement by pets up to 25kg Instant alerts Whenever a sensor in the Alarm Starter Kit is triggered, the A1 sends an instant alert to the app on your smartphone. Integrated solution The A1 can be connected to your EZVIZ cameras. When a sensor in the Alarm Starter Kit is triggered, the camera instantly starts recording images and video. Control via the EZVIZ App With the EZVIZ App, you can remotely control the A1 and all devices connected to it even when you are away from home. T9 Wireless Siren ( must be paired with A1 ) Sound & Light Alarm Whenever an EZVIZ sensor is triggered, the T9 sounds an alarm at 85dB within 3 meters and emits LED flashes to deter intruders. Easy installation The T9 is lightweight and easy to install Model Parameters Model CS-T9-A Technical Features Working Frequency According to regulations: Asia verison 433MHz Alarm Volume 85dB (within 3m) Alarm Light Red light flashes when alarm is triggered (flash frequency ≥2Hz) General Operating Conditions: -10ºC ~ 55ºC, Humidity 10% - 90% Power Voltage DC 5V Working Current Static: 22mA Maximum: 200mA Product Dimensions 121mm × 67mm × 33mm Packging Dimensions 123.5mm x 110 mm x 54mm Weight 77g