Sper Scientific 300053 Pocket Digital Refractometer, Brix: 0 ~ 95% Brake Fluid Refractometer and their non-roll stands ensure

and their non-roll stands ensure that once the unit is set down it won't be prone to roll off a table or desktop

this is on purpose

(3) Fresh LR44 Batteries +

We actually corrected the flawed scale of the other units after seeing that the SG of the old refractometers and a hydrometer weren't the same

Sper Scientific 300053 Pocket Digital Refractometer, Brix: 0 ~ 95% Brake Fluid Refractometer and their non-roll stands ensureItem Description: Pocket Digital Refractometer Brix 0 ~ 95% Laboratory accuracy in the field Product Specs: Sper Scientific 300053 Pocket Digital Refractometer Brix 0 ~ 95% Measure concentrations in brix, salinity and a wide variety of other parameters in the field with laboratory accuracy. Brix: 40 95% Resolution: 0. 1% Accuracy: 0. 2% Product: Pocket Digital Refractometer Brix 0 ~ 95% Laboratory accuracy in the field. Measure concentrations in brix,