KR 16v Coolant temp, oil temp, or pressure ? Tell me please.

Noticed this forum has a  Servere lacking of Photos regarding most questions…. anyway…..

I have 3 sensors in the photo below can anyone tell me what they are and what order there in please.

I think H4 is the oil temp sensor ? but what are H1 H2 and H3.

H4 is the oil temp sender and the other 3 are all temp senders for the ecu.

Temp senders of which variety though ??

Why 3 ?, surely they all have a different roll to play ?

All 3 are water temp senders, 1ecu, 1 for isv and the other is the dash i think.

as above, water temp for dash (red/yellow), ecu (blue/white) and isv control unit (red/green).
They are all the same rating so it doesn't really matter what way round you fit the wires. just make sure they all have a black collar on as per the pic! h4 is oil temp for mfa, and it should have a white collar on.