Eyes.sys High Precision Ballistic Shooting Chronograph Airsoft Bullet Arrow Velocity Meter Kinetic Energy Meter Chargeable MPS/FPS Joules Reading for Archery Hunting Prep

Specifications: -Working voltage: DC3.7v -Speed record: 40 groups -Energy record: 40 groups -Working environment temperature: -10Degree C ~ +60Degree C PackageContent: -1 x set Chronograph -1 x Manual NoticeforUse -Please try to avoid strong light directly shining on the sensor on the host. -The charger must use a special charger for polymer lithium-ion batteries , otherwise the battery will be damaged. -Please leave the battery fully charged if it is not used for a long time, and charge and discharge it every 3 months, which is beneficial to the battery.

• Velocimetry of high accuracy, further enhanced with the clamp guide rail
• High stability and precision with the non-sheltered test area
• Front digitial display of test data in MPS/FPS & Joules, and front button operation, convenient to use
• 2-In-1 functions to measure the speed and the energy
• Palm size & Lightweight & Fixable, easy to carry and use outdoors