EXACT 4XD
3 videos • 45 views • by First Safe Engineering
1
วิธีการ Zero Sensor O2 (Oxygen) ให้เป็น 20.9 %Vol. Model : EXACT 4XD
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2
วิธีการ Zero Sensor LEL, CO, H2S Model : EXACT 4XD
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3
Unboxing | First Safe Engineering EXACT 4XD #gasdetector
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