Rigid borescope with a working length of 175 mm / Diameter only 2.7 mm / LED bulbs / Rugged metal housing / Battery operation - Diameter only 2.7 mm - LED bulbs - Working length 175 mm - Extremely robust - High resolution - Battery operation Technical Specification Effective length 175 mm Diameter 2.7 mm Field of view 45 ° Lighting LED Power supply 3.7V Li-Ion battery (rechargeable) Delivery Contents 1 x Rigid Borescope PCE-RS 27, 1 x rechargeable battery, 1 x charger, 1 x carrying case, 1 x operating instructions