1) Too much salt in humans diet will easily lead hypertension. Researches show over 10grams of salt in humans daily diet had higher chances of causing hypertension. Humanbody should aim at taking less than 10 grams of salt daily. 2) The salt analyzer uses conductivity test to measure the salt concentration in liquid food. Thus, the salt content can be derived to control the daily intake of salt and maintain health. The equipment features in touch pad control, seven red LED indicators, green LED power indicator, easy operation and simple use. 3) It is really good for your health case. 4) Power Requirement: 4 x 1.5=6V (Battery LR44*4 not included) 5) Load current max: 20mA (all LED on) 6) Range of Measurement: 0.3%-2.0% 7) Range of temperature apply: 60-80 8) Size: 21.4cm x 2.5cm x 1.4cm 9) Material: ABS