Backlight on or off of GVDA GD155 Digital Anemometer Portable High-Precision Air Volume Tester Wind Speed Meter Handheld Measuring Wind Speed Tools
Press the button 
and hold it for more than 2 seconds to enable or disable the backlight function.
Contact Us
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Tel: +8618822802390
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E-mail: admin@gvda-instrument.com
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WhatsApp: 8618822802390
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Add: Room 610-612, Huachuangda Business Building, District 46, Cuizhu Road, Xin'an Street, Bao'an, Shenzhen
Backlight on or off of GVDA GD155 Digital Anemometer Portable High-Precision Air Volume Tester Wind Speed Meter Handheld Measuring Wind Speed Tools
Aug 19, 2022
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