How do I read this réfractomèter?

[LeChef]

I’ve seen refractometers before and I’m not sure how to read mine because it doesn’t have the 1.025 but smaller numbers. Idk exactly how to say it but the picture says it all. I’m not sure how to read my salinity with this.

 

[Reef Tripp]

This refractometer is for the food industry, to measure salt in food

 

[LeChef]

This refractometer is for the food industry, to measure salt in food

ahh great

 

[Spieg]

1.026 specific gravity = 35 ppt Sodium. Off the scale for this meter.