Mount specs - remember to check

[turboscrew]

Well, for me there was really no other options but CEM120 (price, payload capacity), but I noticed some funny things.

The latitude setting for CEM120 is upto 68° while it's only 65° for CEM70. (Latitude of Oulu, Finland is 65.012°.)

The operating temperature range of CEM120 is -10°C..+40°C, and for CEM70 it's -20°C .. +45°C.

It's now -15°C here (Nokia, Finland). The operating temperature range restricts the use of CEM120 in Finland quite a bit. Then again the latitude setting range of CEM70 restricts its use in northern Finland, like Rovaniemi (Lat 66.503°)

So, Finns, Swedes, Alaskans, Canadians, ... remember to check the mount specs before buying.
I was somewhat surprised of the -10°C temperature limit of CEM120. It's not mentioned on the spec sheet shown in the web, but it is mentioned in the manual.

[Bigzmey]

I wonder where -10 limit comes from? Is it battery, controller, motor grease? Can you extend by using heaters?

[Lady Fraktor]

I would suspect some plastic/ nylon parts internally though I could be wrong.

[turboscrew]

I have no idea. And for CEM70 that's -20°C.
Similar products of the same company tend to use the same technology where applicable.

[turboscrew]

I have no idea. And for CEM70 that's -20°C.
Similar products of the same company tend to use the same technology where applicable.

I sent them a question. Let's see if they answer.

[Ruud]

Would it help to wrap the sensitive bits in electric blankets?

[turboscrew]

Would it help to wrap the sensitive bits in electric blankets?

I think so, if
a) you know what the sensitive bits are
b) you can actually wrap something around them without messing up the functionality

[Ruud]

I think so, if
a) you know what the sensitive bits are
b) you can actually wrap something around them without messing up the functionality

  
True, you would not want the mount to strangle itself.