0~20.00 ppm
AMTAST Portable Dissolved Oxygen and Temperature Meter DO Sensor Dissolved Oxygen Levels Tester, DO Range: 0~20.00 mg/L, 0~20.00 ppm

AMTAST Portable Dissolved Oxygen and Temperature Meter DO Sensor Dissolved Oxygen Levels Tester, DO Range: 0~20.00 mg/L, 0~20.00 ppm

40% оƒƒ Dіѕсоunt AMTAST Portable Dissolved Oxygen and Temperature Meter DO Sensor Dissolved Oxygen Levels Tester, DO Range: 0~20.00 mg/L, 0~20.00 ppm…