Comfort LED is available under the settings then general on the Yale App.

You can set the light to flash however this can drain battery life so instead of 12/18 months life span you may have 8/12 months with the light on.

The external siren is powered by four alkaline D batteries which have a life of 18-24 months on average.

The Yale Smart Alarms work on a very secure rolling code frequency of 868MHZ which offers a more stable connection and helps prevent anti jamming devices.

All components for the alarm systems are battery powered only. They do not have the facility to be wired into the mains electricity.

It is a blue light that is emitted from the base of the siren box when the alarm is sounded.

Included in the kit are 6 x AAA, 2 x CR2032, 4 x D Cell. These will last between 18-24 months. All these battery's are available from all good supermarkets.

The alarm would still function without internet as it would work as a standard alarm but you won't be able to control the system via the Yale App or receive notifications until your broadband is connected.

When the alarm is activated you can de-activate it immediately with your mobile, keypad or keyfob.

The internal Siren would only sound once the alarm has been triggered. You can disable the alarm at any point when at home and fully activate it when you leave. You also have the option of Part Arming your property.

The app would only notify that a PIR sensor has been triggered, but would not indicate which specific sensor.

The Correct App is the Yale Home System App, which should be compatible for IOS 9.3.

The HSA6090 alarm works on a different frequency. I am afraid that none of it's components are compatible with the SR range of Yale alarms.

Yes, they can be used on most patio doors (this does depend on the door itself) please make sure that once the Door Contact is fitted there is no more than a 10mm gap between the contact and sensor.

No, the Smart Hub is not counted as one of the 20 components.

An active internet connection is required to complete the set up of this system.

Yes the system does support two sirens. However, we do not sell these separately.

Yes the Pet Friendly PIR's and other sensors can be selected from the accessories section at the point of order.

The Yale Smart Home Alarm Kit-SR-320 is not grade 2 EN50131 approved.

Everything you need to set up the alarm system comes together in one box, including the Ethernet cable. An Ethernet cable carries the broadband signal between wired capable internet devices and is used in this instance to connect the 'Smart Hub' to your broadband router.

This system is not compatible with Google Assistant. You may want to take a look at the ERA HomeGuard Smart Alarm Pro - Junior Kit which is compatible.

You would set the duration using the dill switches.

All parts are covered with the two year warranty and will be replaced by Yale if they become faulty.

Dummy sirens are not available to purchase as accessories for the alarm kits. As they systems are set packs you would need to purchase a system such as the Yale Smart Home Alarm & View Kit - SR-330 which includes the dummy siren also.

Yes the alarm could still be set or de-activated using the main control keypad.

Yes this alarm system can be accessible through the Yale app on a Apple iPad or any Apple device.

The sensors which come as standard are not pet friendly. The pet friendly PIR sensors would have to be purchased separately.

This keypad does not give an audible entry tone. It does however have a 20 second delay from entry to alarm activation to allow you enter your code to de-activate the alarm.

A standard pay as you go sim card can be used in the alarm from any network other than the network Three.

These systems are designed for self installation. With no wiring required, you do not need to hire an electrician for installation.

The hub is connected to a the internet router by ethernet cable only. The app needs Android version 4.2 or above to work with the system.

When the alarm is triggered you will receive notification immediately, dependant on internet connection. You can set an entry/exit time on the system which means you will have a set period in which to disarm the alarm once a sensor has detected the entry. The Image Camera will take an image once it has detected motion and the Smoke Detector will sound when it detects smoke.

The smoke detectors do not need to be on a separate zone and can be added onto any zone, which you set via the Yale App. The smoke detector can be turned offer via the Yale App also.

This alarm requires a direct connection to a broadband router via an ethernet cable in order to be controlled from a smartphone.

The only cameras that can be linked as part of the alarm system or on the same app are the PIR versions. Cameras such as the Yale Smart Living Wi-Fi Camera with Pan, Tilt & Zoom have their own smartphone app.

Unfortunately the alarm in the hub would always sound when the alarm is triggered.

Unfortunately this is not compatible with Nest at the moment.

If there is no power to the router the siren would sound, however the system would not be able to notify you. An alternative would the ERA Invincible - Wireless SmartPhone Alarm PLUS. This model also has an internal battery should power fail, but does not require a internet connection to contact you. This alarm is connected to a landline or a SIM card and will call you if the alarm is triggered.