["Description:\r\nPen 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.\r\nOptical engineering construction, network maintenance, fiber optical devices indispen sable production and research tools.\r\n\r\nFeatures:\r\nbrand new and high quality. \r\n- MQW LD optical source\r\n- Operating mode: CW and GLINT\r\n- for FC, SC, ST,LC General interface\r\n- Long inspection distance\r\n- Steady power output\r\n- Sturdy and durable shell\r\n- Pen pattern design, convenient for use and carry\r\n \r\nFunction:\r\n- Locate the fiber failure, such as fracture and bend\r\n- Failure inspection in OTDR blind zone\r\n- Fiber recognition from for head face to end face\r\n- Mechanical transition point optimization\r\n \r\nApplication:\r\n- Telecom, CATV project\r\n- PDS construction and maintenance\r\n- Optical component manufacture and research\r\n- Other fiber project\r\n\r\nSpecifications:\r\nModel: HT-1 \r\nfor Shell material: Aluminum Alloy\r\nColor: Black\r\nSize: (Approx.) \r\n Top diameter: 2.5cm/0.98in\r\n Bottom diameter: 2cm/0.79in\r\n Height: 17.5cm/6.89in\r\n Lanyard: 12cm/4.72in\r\n Storage Bag: 19×4cm/7.48×1.57in \r\nWavelength: 650nm ± 10nm\r\nOutput power: More than 1mw\r\nDynamic Distance: 1-5km\r\nFiber Optic adapter: 2.5mm Universal Connector\r\nPower Supply: 2* 1.5V AA (not included)\r\nBattery life: more than 42h \r\nOperating Temperature: 0℃ ～ +60℃\r\nStorage Temperature: -20℃ ～ +70℃ \r\nQuantity: 1 Set\r\n\r\nNote: \r\n1.Transition: 1cm=10mm=0.39inch\r\n2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\r\n3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r\n\r\nPackage includes: (With retail package)\r\n1 X 1mW Visual Fault Locator\r\n1 X Visual Fault Locator Storage Bag\r\n1 X Lanyard"]