Do you have a universal type in mind?
The originals could be sized to fit the application in you meter but also it may be possible the manufacturer just purchased off the shelf ones too and cut to size !.
I cannot say whether universal ones will work or not but if you can find cheap universal ones that look similar give it a try. Unlikely to be an issue, either work or it wont !!.
The flip side of course is the meter actually worth it, maybe its time to look into something new as you now have a reason

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