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. - MQW LD optical source - Operating mode: CW and GLINT - FC, SC, ST,LC General interface - Long inspection distance - Steady power output - Sturdy and durable shell - Pen pattern design, convenient for use and carry Function: - Locate the fiber failure, such as fracture and bend - Failure inspection in OTDR blind zone - Fiber recognition from head face to end face - Mechanical transition point optimization Application: - Telecom, CATV project - PDS construction and maintenance - Optical component manufacture and research - Other fiber project Specifications: Model: HT-1 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 1mw Dynamic Distance: 1-5km Fiber Optic adapter: 2.5mm Universal Connector Power Supply: 2* 1.5V AA (not included) Battery life: more than 42h Operating Temperature: 0 +60 Storage Temperature: -20 +70 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 1mW Visual Fault Locator 1 X Visual Fault Locator Storage Bag 1 X Lanyard