Features 1、HIGH POWER LASER: Red laser pointer can output 10mw high power laser, with strong penetration and long distance transmission capability, and can easily detect and locate fiber faults. 2、METAL MATERIAL: Visual fault locator is made of durable metal material, which is durable and has a long service life. 3、STABLE OUTPUT: Fiber optic source tester is energy saving, could output power stably, a good tool for optical fiber testing. 4、EASY TO CARRY: Compact design of the VFL is easy to carry and use. Suitable for use in different scenes. 5、SIMPLE AND EASY TO USE: Red light pen is simple to operate. Emit the laser beam just by pressing the button, without complicated settings and adjustments. At the same time, it has a bright laser beam, making it easy to locate fiber optic faults in various environments. Specification Item Type: Red Light Pen Material: Metal Product Size: Approx. 17.5 x 2.5 x 2.5cm / 6.9 x 1 x 1in Battery: 2 x AA alkaline battery(Not Included) 2.5mm interface universal SC, FC, ST head Package List 1 x Fiber Optic Testing Pen 1 x English Manual 1 x Convenient Bag 1 x Hanging Rope 1 x Ceramic Core