Electronic Ranging 7x18 Single Barrel Telescope Golf Rangefinder Digital Measuring Instrument PortableProduct Name: Golf Electronic RangefinderProduct Details:Do You Like Playing Golf? Do You Like Outdoor Activities? Please Take A Look At This Newly Launched Small Digital Distance Measuring Instrument / Golf Observer She Is Also A Good Gift Designed For Golf, It Accurately Measures The Distance Between The Player And The Hole.One FeatureThis Is A Newly Invented Golf Observation Instrument For Measuring Distance With Precision Optics And Digital Technology. It Is A Very Safe Distance Test Device. It Does Not Have Any Form Of Energy Radiation And Does Not Cause Any Damage And Damage To The Human Body In The Activity Of Measuring Distance.Two Functions1. Green Mode (Lawn Function)This Feature Is Specially Designed For Golfers. You Can Easily Get The Distance Between Your Holes2. General ModeThis Function Is Suitable For Ordinary Situations. First, You Can Enter The Height Of The Target To Measure The Distance Between You And The TargetIii. Component Name1. Switch / Adjustment Key2. Function Keys3. Battery Loading Position4. Peephole5. Objective LensMain Parameters And Indicators:Objective Lens: 28mm;Eyepiece: 16mm;Resolution: 13 ;Magnification: 7 Times;Farthest Test Distance: 930 Yards (1 Yard = 0.914m)Viewing Angle: 7.8 ;Power Supply: Use Two Cr2032 Button BatteriesVolume: 90mm 50mm 38mmIv. Application Method1. Press The Switch / Adjustment Key To Start The Instrument, And Ann Will Directly Enter The Lawn Function2. When Playing Golf:The Height Of The Ruler In Yards (2.6 Yards) Has Been Entered(1) Align The Bottom Line Of The Screen With The Horizontal Line Of The Lawn(2) Press The Switch / Adjust Key To Raise The Position Of The Scanning Line To The Top Of The Golf Flagpole(3) The Number Will Appear At The Top Of The Screen To Indicate Your Distance From The Hole3. It Is Used To Measure The Distance Of Special TargetsWhen You Press The Function Key, The Instrument Will Enter The General Function State, And The Screen Will Display Three Digits And One Decimal PlaceIf You Want To Check Your Distance From The Target, Please Enter Its Height(1) Press The Switch / Adjust Key To Input The General Function Status, And The Screen Will Display Three Digits And One Decimal Place(2) Press The Function Key To Move To Ten Digits, And Then Press The Switch / Adjustment Key To Enter The Number. The Range Is Also 0 To 9.(3) Repeat The Above Steps To Set Each Digit And One Digit Below The Decimal Point.(4) Press The Function Key To End The Above Input Process.(5) Depending On The Height You Enter, The Screen Displays The Minimum Distance You Can Measure.(6) Align The Bottom Line Of The Screen With The Lowest Line Of The Target.(7) Press The Switch / Adjust Key To Raise The Position Of The Scanning Line To The Top Of The Target.(8) The Number Will Appear At The Top Of The Screen To Indicate Your Distance From The Target.V. Precautions1. The Displayed Distance Is Consistent With The Entered Height Unit.2. The Power Supply Switches Automatically 60 Seconds After The Operation.3. Attention Please Do Not Use This Product To Observe The Sun With The Naked Eye, Which Will Cause Permanent Damage To Your Eyes.