6" anti-freeze tester  6" anti freezr tester,  8" anti freezr tester, special anti feeeze  tester Features:

1) Fast and accurate testing of battery condition

2) Fast and accurate testing of anti-freeze strength

3) Easy to use

4) Color coded readout:

 a) Red: discharged

 b) White: low charge

 c) Green: fully charged

6"anti-freeze tester