The Murphy LM500-TF Oil Level Maintainer includes a test feature that confirms both the float and switch are operating correctly with a single press of the test button.
摩菲lm 500 -TF油维持计包括一个监测功能，确保浮子和开关的正确操作与一个单一的按测试按钮。
The Murphy LM500-TF Oil Level Maintainer includes a test feature that confirms both the float and switch are operating correctly with a single press of the test button.
摩菲lm 500 -TF油维持计包括一个监测功能，确保浮子和开关的正确操作与一个单一的按测试按钮。
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