strange naming

[lore]

Hi,
I'm evaluating/comparing those two cameras:
DS-2CD2D25G1/D/NF
DS-2CD2D25G1/M-D/NF
from the pictures on the website it seems the difference in terms of HW is the use of a pinhole lens or M12.

If I look at the series 2 naming table the "M" in the product code should stand for HDMI... but there is absolutly no mentioning on HDMI in the description.
Or it can stand for Metal case, but both of them are with metal case...

Does anyone know what the M means for this specific model so that I'm sure what I'm going to buy?

Thanks

 

[trempa92]

M stands for HDMI ONLY if its behind second minus - .

I dont know for what it stands here sorry.