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This 2 kg (4.5lb) counterweight is designed for following iOptron mount:

  • CEM40/CEM40EC* (early version with 20mm CW shaft)
  • iEQ30/iEQ30 Pro
  • CEM25/CEM25P/CEM25EC
  • ZEQ25
  • AZ Mount Pro
  • MiniTower Pro
  • MiniTower II
  • MiniTower
* Check your CEM40/CEM40EC mount CW shaft diameter before ordering.

It can be used for other mount with a 20mm diameter counterweight shaft.