There are 2 types of the TE60
The differences as follows:
Size: 39.5mm x 10.5mm x 10.5mm(TE60A)
View angle: 0.5mm F1.2 / 90 °(TE60A)
33.0mm x 10.0mm x 10.0mm(TE60B)
0.5mm F1.2 / 50 °(TE60B)
1.Its size is smaller than finger, which is suitable to install it into narrow place.
2.Extremely low illumination(0.008lux),if remove ir filter, it has good night vision with external ir sources.
3.wireless transmission, tiny weight( 8g), continuous working(AV power supply), and easy installation . It is a good helper for home monitoring and burglar.