This device is recognized as Orvaldi because of this:
oid: .1.3.6.1.4.1.21111.1.1.1.6.0
op: starts
value: VER
Looking at your SNMPrec, the value at that OID from your device is:
.1.3.6.1.4.1.21111.1.1.1.6.0 = STRING: "VERFW:03112.01"
So this is clearly a match to your device.
Also, the sysObjectID for your device is:
.1.3.6.1.2.1.1.2.0 = OID: .1.3.6.1.4.1.43943
The number 43943 is the PEN (unique ID per manufacturer). 43943 belongs to Voltronic, a (seemingly) Chinese brand of UPS’es.
It looks like your PowerShield UPS is just a rebadged Voltronic UPS’ es, perhaps with Orvaldi software. When Googling on ‘OLHV3K0’ I also come across BlueWalker UPS and Forza UPS systems, which are probably more rebadged UPS brands using the same software/controller card
If you want this device to be properly identified as a PowerShield UPS, it needs to identify itself as such… and it doesn’t seem to do that. I don’t see anything in your SNMPrec that would allow us to properly identify this device as a PowerShield.