How to install Dual voltage sensitive relay (VSR) with digital display

Warning - be careful working with this much current. I take no responsibility, I just show you how I did it.
Installing Voltage Sensitive Relay with Digital Display, Dual Battery
Isolator Controller with Manual and Auto Mode
This is a Newer version of Dual VSR (also known as voltage sense relay) with Digital Display with switch built in. I bought it at Aliexpress.
Cut in is 13.3 Volt and
Cut out is 12.8 Volt.
In this video I show how I installed it and show its function. Two 12V batteries are connected in parallell through this Voltage sense relay. Lettng the car generator charge both batteries.
Starter battery and a leisure battery.
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Here is the other video version that I installed in my other car:
Voltage Sensitive Relay eller Skiljerelä as it is called in Swedish.
• Installing voltage sen...
Installing voltage sensor relay biltema VSR V7

[@FirstNameLastName-bx6xc]

When you remove the minus of the relay which would turn it off, will it still be an automatic as the default when you connect the minus back On?

[@RabMac108AT10six]

Hello sir.. Ive fitted this exact model. It doesnt display anything til i press the on off switch.. What is the point of he on / off switch?

[@almaromanus1337]

Hi what's the name of the part you used between the main battery and the VSR, laying on the engine?

[@ScooterSimplicity]

Hi, do you mean the 80Ampere Fuse /Fuseblock?

[@andresrivera2124]

how is it holding , ?thanks