Set Uninterruptible power supply unit (Inverter) for heating system 300 + 12V 26Ah battery

Uninterruptible power supply (UPS or Inverter) for heating system - necessary for any heating boiler and heating system, as it protects the boiler's automation and circulation pump from voltage surges that cause damage to electronics, and also ensures the operation of the heating system in the event of a power outage.
The package includes a 12V 26Ah battery
The battery is sealed, so it does not require maintenance.
In case of power failure, switches to operating mode in <0.01s
The inverter starts generating 230V AC pure sine wave from any 12 Volt battery (max 120Ah)
When voltage becomes available from the mains, the device charges the battery itself
The inverter has a convenient LCD display that shows the current operating status
Designed for 300W power
The inverter can also be mounted on the wall, which will save space in the room.
If the heating system consumption is 60-70W, then using a 26Ah battery, the system operating time will be up to 2.5-3 hours.