... Surveillance transmission channel testing• Video attenuation testing• DC12V power supply for cameras• OSD Menu,Standby for 11 hours. ... measuring, continuity testing, diode testing.Laser power meter testWave length, power range, response, optical interface, lock show ... , can normally used for about 11hours.Power save functionLow power consume, auto holding stateOther ParametersOperation setupChinese, ...