Check the listing for details. Handheld Optical Fiber Identifier Optical Cable Tester Meter With -50 ~ +10 dBm. Condition: New. Listed at 220.00 USD. 1111MicrosoftInternetExplorer402DocumentNotSpecified7.8 磅Normal0 Handheld Optical Fiber Identifier Optical Cable Tester Meter With -50 ~ +10 dBm Note: Battery not Included During The Shipping !!! Features:Easy-to-use with “ONE KEY” operation.Efficiently identifies the traffic direction and frequency tone (270Hz, 1KHz, 2KHz) with audible warning.Displays the relative core power More accurate test with SunshadeEasy-to-replace adaptors Durable metal housing and quality constructionLower power indication Specifications: Identified Wavelength Range800-1700 nmIdentified Signal TypeCW, 270Hz±5%，1kHz±5%，2kHz±5%Detector TypeØ1mm InGaAs 2pcsAdapter TypeØ0.25 (Applicable for Bare Fiber)，Ø0.9 (Applicable for Ø0.9 Cable )Ø2.0 (Applicable for Ø2.0 Cable ), Ø3.0 (Applicable for Ø3.0 Cable )Signal DirectionLeft & Right LEDSinge Direction Test Range(dBm, CW/0.9mm bare fiber)-46~10(1310nm)-50~10(1550nm)Signal Power Test Range(dBm, CW/0.9mm bare fiber)-50~+10Signal Frequency Display (Hz)270, 1k, 2kFrequency Test Range(dBm, Average Value)Ø0.9, Ø2.0, Ø3.0-30~0 (270Hz,1KHz)-25~0 (2KHz)Ø0.25-25~0 (270Hz,1KHz)-20~0 (2KHz)Insertion Loss(dB, Typical Value)0.8 (1310nm)2.5 (1550nm)Alkaline Battery(V)9Operating Temperature(℃)-10－+60Storage Temperature(℃)-25－+70Dimension25.5*8*5.5cmWeight0.4kgPower supply 2*AA alkaline batteries (not included)