THE CHALLENGER GS 1 X 20  IS THE UNIQUE COMBINATION OF SPECAILLY DESIGNED R-CONTACT OPTICS AND THE CF SUPER IMAGE INTENSIFIER TUBE, CREATED SPECIFICALLY FOR EACH OTHER SUCH THAT THEY WILL NOT WORK WITH ANY OTHER SYSTEM.  THE RESULT OF THIS EXCLUSIVE TECHNOLOGICAL DEVELOPMENT IS THE HIGHEST EDGE-TO-EDGE RESOLUTION PERFORMANCE EVER SEEN IN A BUDGET CONSUMER NV PRODUCT.  THE DEVICE IS OUTFITTED WITH A NEW FIVE-LENS EYEPIECE THAT MINIMIZES DISTORTION ON THE EDGES OF THE FIELD OF VIEW AND INCREASES SHARPNESS AND CONTRAST OF THE IMAGE.  THE SOFT RUBBER EYECUP CONCEALS THE LIGHT EMISSION FROM THE TUBE THUS PERMITTING A USER TO STAY UNNOTICED.

IMAGE INTENSIFIER TUBE GENERATION :  CF-SUPER

TYPE OF IMAGE INTENSIFER TUBE :  EP33-SF-U

MAGNIFICATION :  1X

OBJECTIVE LENS :  20mm

RESOLUTION, LINES / mm , min :  42

LUMINOUS GAIN, min :  900

ANGULAR FIELD OF VIEW, DEGREE :  36

MAX. DETECTION RANGE :  90m  / 98 yards

EYEPIECE ADJUSTMENT, DIOPTER :  +4

OPERATING VOLTAGE :  3  1X CR123A BATTERIES

MAX OPERATING TIME  :  IR OFF 72 hr  - IR ON 20 hr

OPERATING TEMPERATURE :  -20`C~+40`C   /  -4`F~+104`F

DIMENSIONS :  LENGTH - 6.9"           WIDTH - 3.1"      HEIGHT - 2.3"

WEIGHT OF UNIT :  10.6 oz

INCLUDES :  CHALLENGER UNIT , CARRYING CASE , USER MANUAL , CLEANING CLOTH &  WARRANTY CARD