ModelWavelength nm Dynamic range dB Measuring range km NoteDual wavelength sequencesTM1100 A22D1310 1550nm22 20dB70km TM1100 A24D1310 1550nm24 22dB80km TM1100 A26D1310 1550nm26 24dB90km Single wavelength sequencesTM1100 A20S1550nm20dB70km TM1100 A22S1550nm22dB80km TM1100 A20SF1550nm20dB70kmFilterTM1100 A22SF1550nm22dB80kmFilterFeatures 9 in 1 function OTDR OPM VFL LS network cable test fiber inspection event map loss test flashlight 4 3 inch capacitive touch screen with full viewing TFT 800x480 resolution so you can operate it and see the data more clearly and convenient With the data export pro tection function it support thr U disk memory card and Micro USB cable CPU frequency 1GHz equipped with 1g DDR and 8g memory card which can give you a better using experience Specification Measuring range100m 500m 2km 5km 10km 20km 40km 80km 90kmSampling resolutionMinimum 0 2mThe sampling point64 000 pointLinearity≤0 05dB dBLoss threshold0 01dBLoss resolution0 001dBRange resolution0 01mRange accuracy± 0 5m Range 3 10 5 Sampling resolution Excluding refractive index error Memory100000VFL10mW CW 2HzData interface2 USB Type A 1 Micro usb 1 SD cardScreen4 3 inch TFT LCD Standard distribution capacity touch screen Battery3 7V 5200mAhTemperatureWorking temperature 10℃ 55℃ Storage temperature 20℃ 80℃Humidity≤95 No condensation Size Weight175x105x45mm 0 56kg Contain the battery AttachmentPower adapter lithium battery FC adaptor USB cable quick guide portable p