... Range800nm ~ 1700nmIdentified Signal TypeCW, 270Hz±5%,1kHz±5%,2kHz±5%Detector TypeØ1mm InGaAa 2pcsPower Range-50 dBm ~ 0 dBmAdapt Type ... )-50 ~ +10Signal Frequency Display270Hz, 1kHz, 2kHzFrequency Test Range(dBm, Average Value)Ø0.9/2.0/3.0-30 ~ 0 (270Hz, 1KHz ... ~ 0 (1KHz, 2KHz)-20 ~ 0 (2KHz)Insertion Loss (dB, Typical value)0.8 (1310nm)/2.5 (1550nm)Alkaline Battery (V)9Dimension ...