QDLASER 0-200W High Accuracy Handheld Power Meter HLP-200B CO2 Laser Tube Dynamometer for Co2 Laser Engraving & model number:China (1) OEM Locking Ring for

(1) OEM Locking Ring for Raytools BT240 and BT240S

* In case of multiple uses

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(1) Laser Tube connection: (Referring to Power supply and laser device's connection diagram)High voltage terminal(HV+) of HY-DY20 power supply should be connected to the positive pole of CO2 laser device

QDLASER 0-200W High Accuracy Handheld Power Meter HLP-200B CO2 Laser Tube Dynamometer for Co2 Laser Engraving &amp model number:China (1) OEM Locking Ring forProducts Description QDLASER 0 200W High Accuracy Handheld Power Meter HLP 200B CO2 Laser Tube Dynamometer for Co2 Laser Engraving &