Refractometer Ip65 Waterproof Salinity , Each

Details:

Waterproof digital refractometer salinity^ waterproof digital refractometer, rugged, waterproof, ideal for field use, long-life rechargeable battery, unit of measure: salinity, range: 0.0 To 28%, resolution: 0.1%, Accuracy: /-0.2%, Dimensions: 4 1/2 x 21/4 x 1in(108 x 57 x 25mm), weight: 5oz(141g)