Specification:
* Field of view: +/- 7 degree
* Security: FDA (Class 1) (CFR21)
* Magnification: 6X
* Objective lens diameter: 24mm; Eyepiece lens diameter: 16mm
* Dioptre adjustment: +/-3 degree
* Focusing method: Eyepiece focusing
* Working temperature: 0 C degree to 40 C degree