HDT-30 Dark Room Timer Accessories for X Ray Flaw Detector

HDT-30 Dark Room Timer Accessories for X Ray Flaw Detector 1.Introduction HDT-30 type darkroom timer is the HUATEC's self-developed set of timing, clock, adjustable LED red light is one of the special darkroom washing tools. The instrument is made of aluminum alloy shell and PVC seal buttons, can be used in washing room acidic aerosol term, you can display the current clock as a watch, but also can be used as a countdown timer. 2. Technical Sheet Voltage 220V AC Timer Range