Description: Pen red light emitting device by using 650nm semiconductor laser to emit red light, stable, and optical interface is connected into themultimode and single-mode optical fiber, optical fiber fault detection function. Optical engineering construction, network maintenance, fiber optical devices indispen sable production and research tools. Features: 100% brand new and high quality. Characteristic: - well LD as light source - CW and MOD mode - FC, SC, ST interface - detection distance - stable power output - low power - nanotechnology multiple electrostatic protection - rugged enclosure - pen shape design, convenient to carry and use Function: - fiber breakage, bending failure location - Fault check - end-to-end optical recognition - mechanical connection point optimization Application: - Telecom, CATV engineering and maintenance - Integrated wiring construction and maintenance - The production and research of optical devices - Other optical engineering Specifications: Model: HT-10 Shell material: Aluminum Alloy Color: Black Size: (Approx.) Top diameter: 2.5cm/0.98in Bottom diameter: 2cm/0.79in Height: 17.5cm/6.89in Lanyard: 12cm/4.72in Storage Bag: 194cm/7.481.57in Wavelength: 650nm 10nm Output power: More than 10mw Dynamic Distance: Less than 10km Fiber Optic adapter: Universal Connector Power Supply: AA*2 (not included) Battery life: more than 13h Quantity: 1 Set Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: (With retail package) 1 X 10mW Visual Fault Locator 1 X Visual Fault Locator Storage Bag 1 X Lanyard