Specification BatteriesRequired : 1 Brand : BUZHI BulletPoint : DM30 series black white transmission densitometers can be widely applied to the fields such as nondestructive testing, printing industry etc. BulletPoint1 : Optical fiber identifier, visual fault locator, online testing, does not require fixture replaent, singlemode and multimode are general purpose. BulletPoint2 : 270Hz, 1kHz, 2kHz three signal frequencies can be identified, there is a beep when identifying the frequency. BulletPoint3 : Exquisite workmanship and comfortable hand feeling, the operation is simple and convenient. BulletPoint4 : The microbend test technology can accurately identify the direction of the optical fiber. When the optical fiber has a signal, the left and right direction lights show the signal direction, and the left direction light lights up to indicate that the light source is from right to left. BulletPoint5 : Ergonomic design, when grip the machine, press the trigger switch with the index finger, then clamp the optical fiber line and the machine will test automatically. BulletPoint6 : Program Mode for custom calibration BulletPoint7 : Light illuminated 4 digit LCD display with low battery indicator Color : Multicolor ExternallyAssignedProductIdentifier : 7454221037490 HasAdjustableLength : 1 IncludedComponents : Main Unit, Power Cable, Density Tablet, Software, Manual ItemName : BUZHI Fiber Optic Identifier 10mw Red Light Source Fiber Optic Identifier 270Hz 1KHz 2KHz Identifiable Frequency Visual Fault Locator with LED Light 800-1700nm for 3mm 2mm 0.9mm 0.25mm Optical Fiber. ItemPackageQuantity : 1 ItemTypeKeyword : flaw-detection-tools Manufacturer : BUZHI MeasurementAccuracy : ±0.05 ModelNumber : DT-100 NumberOfItems : 1 PartNumber : MSUS-E21665-HKX PowerSourceType : Battery Powered ProductDescription : This is a kind of quality optical fiber identifier, visual fault locator, online testing, does not require fixture replaent, singlemode and multimode are general purpose. 270Hz, 1kHz, 2kHz three signal frequencies can be identified, there is a beep when identifying the frequency. 4in1 universal fixture, suitable for 3.0mm, 2.0mm, 0.9mm, 0.25mm optical fiber line. You can have a try.