每包2個裝

優點：
電極薄膜更換更簡易快速
不易因電極薄膜不當，造成量測誤差

適用於下列機型
DO-5509溶氧計、DO-5510智慧型氧氣分析錶、
YK-22DO、YK-2005DO、YK-200PDO等溶氧計器

SPARE PROBE HEAD WITH DIAPHRAGM SET
Model : OXHD-04
* Exclusive DO probe head with diaphragm set for DO-5509, DO-5510, YK-22DO, YK-2005DO,
　PDO-519, PDO-520, DO-5519, DO-5510HA and YK-200PDO.