According to Functions ¡nWater Penetration Test
Portable Type Water Penetration Tester
AATCC 127, JIS L1079/L1092/L1096/K6550, CNS 1479/10461/1481
It aim to test the water pressure-resistance for waterproof fabric or other material, to obtain a precise water-resistance level for the material.
It can be switch between high pressure and low pressure, and it is portable, very convenient to use when at work field