The Invincible would give you full information and status displays via the LCD screen. However the invincible can also contact you through landline and sim which would justify the price difference.

Unfortunately there is not a chime feature on this Alarm system.

The Era range of smart alarms all have a built in rechargeable battery which would automatically back up the alarm whenever necessary.

The ERA invincible works on a secure and private 433MHZ radio frequency. However I can also recommend the ERA HomeGuard Smart Alarm Pro - Premium Kit which has anti Tamper technology.

The Era systems have anti-jamming technology. You will receive notification if jamming is detected.

This system can be operated through the App providing you have a data enabled Sim Card fitted. It does not require connection to the internet via a router or wi-if.

The app allows use to to use and control the alarm via your smartphone, for example, activating and de-activating the system. You will also receive alarm notifications through to your mobile. The notifications are sent as a text message so you will require credit on the SIM being used.

Up to 50 sensors can be connected to the alarm.

The alarm would still function as a standard alarm without the SIM but you would not receive push notifications.

The App would not use Data to use however any notification alerts would be charged at a standard text rate.

The ERA PIR's which work on a duel sensor would be suitable as long as the garage is within 80 metres frequency range of the hub. The RFID keypad does not include an internal siren however the actual hub has one built in which would siren when any component is activated.

The Pet Friendly PIR sensors on this system and the Yale smart alarms are reliable. You must ensure that the sensors are positioned at the correct height and angle so that movement is detected within the sensors field of view.

This alarm system will activate if it detects that an attempt to block or jam the alarm signals is being made.

Unfortunately this item is not designed to be integrated with any CCTV systems.

The alert system is either by phone call or text message and therefore if no SIM card is present, the alert will be by phone call only.

Existing PIR's can be used as long as they are the ERA brand and work on the same frequency of 433MHz.

The system will allow you to control or set which notifications you receive in the settings menu.

The alarm can be set to create two different zones, allowing you to arm one or both zones.

The main control panel is mains powered but comes with a battery back up in case of power failure. Additional battery powered ERA Wireless Touch RFID Keypad's can be purchased and added to this system if needed.

Yes the Hub is wired and plugged into the mains socket, in the event of a power failure there is a back up battery inside the hub.

The rechargeable battery will last between 4-8 hours once fully charged.

Telephone numbers can be programmed through the control panel. Once the alarm is activated the system will contact each person saved as an emergency contact in sequence.

Unfortunately this system is not compatible with a hard wired siren.

The ERA Invincible Smartphone Alarm does not use mobile data to alert you, it would call or text so a standard sim card would be fine. However I would recommend the ERA HomeGuard Smart Alarm Pro - Junior Kit if you are looking for a WiFi enabled smart alarm system.