Feature: 1. The salinity meter has two modes, arbitrarily switching between Celsius and Fahrenheit. 2. Not only can it detect the salt content, salt water pool and fish pond, but also the salinity of sea water and salt water pool. 3. It can accurately, quickly and reliably test most conventional aqueous solutions. 4. 0?199.9 PPT measurement index, the test head can be placed in the liquid to be tested. 5. Made of high?quality ABS material, durable and wear?resistant, not easy to damage. Specification: Item Type: Salinity Meter Material: ABS Weight: Approx. 147g / 5.2oz Uses: widely used in swimming pools, fisheries, drinking water, laboratories Measurement Index: Salinity 0-199.9 PPT Battery Attributes: 4 x 1.5 v (AG-13) (battery not included ) How to Use: the test head can be placed in the liquid to be tested (please refer to the manual for details). Package List: 1 x Salinity Meter (Battery Not Included) 1 x Screwdriver 1 x Manual