Is that 1886 or 188.6? Hard to tell.
Also, what model apogee and sensor is that? The sensor that was brought to my house I thought was rather huge...do you know how large that one is approximately?
There are no decimal points in the meter, it is 1886 and it is the Apogee MQ-200 meter. Sensor is the one that they sent with the meter and its about the diameter of a nickle.