This non resettable hour meter is connected to the DC voltage power circuit of the hotend output from the 3D printer control board.  When the hotend is ON, the meter accumulates. The meter can not be reset and provides an accurate time the hotend has been under power, which represents the printing time the machine has been running. 

Includes:

• One Hour Meter

Compatibility:

• BOSSdelta 500
• Any 12-24VDC input
• Also any