Every R22 I've flown has had dipsticks ( obviously only 1 for the alpha). Just for info they have varied in colour.
The plain aluminium ones in the machines that I SFH at the moment are awful to read in bright sunlight but the anodised matt black ones I used at Heli-Air made the fuel level very clear to read in all light conditions. If you can then get the black anodised ones
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Good luck
Ian.