The red needle moves with your rifle and displays a number that indicates the percent your rifle is off level.
Multiply the indicated percent by the target distance to easily calculate the adjusted distance for gravity.
This precision-machined, aircraft-grade aluminum Angle Degree/Cosine Indicator (ADI/ACI) takes the guesswork out of uphill and downhill shots.
This ADI/ACI is calibrated in degrees and cosines give you an instant read out which can enter directly into ballistic software program on your pocket PC.
Finish & Coating: Anodic oxidation
Center height: 36mm
Impact :800G Ten thousand times
Clamping way :Common dismantling