Multi-Function TV Signal Meter This is an instrument used for the construction and maintenance of analog TV / digital TV, and the measurement of TV signal level and power level. It is widely applied in the routine maintenance of the CATV system; slope measurement, voltage measurement, measurement of C/N ratio Convenient and Pragmatic, Worth to Own S110 owns high brightness back-light operating modes, with clear LCD screens, dual-channel measurement display, so it is convenient and pragmatic; besides, numeric keypad input allows it easy to operate WHAT'S IN THE BOX? 1 x CATV Cable Tester1 x RF input Connector1 x Power Charger1 x Manual Frequency / channel Frequency accuracy: ± 50 * 10E-6 (20 ℃ ± 5 ℃)Resolution: 50KHzMeasurement bandwidth: 280KHz ± 50KHz. Level measurement Measuring range: 30dBuV ~ 120 dBuVMeasurement accuracy: ± 2dB (20 ℃ ± 5 ℃)Resolution: 0.5dBDetection method: peak detectionInput Impedance: 75ω (unbalanced, F-type connector). Carrier-to-noise ratio measurement Measuring range: 20dB ~ 50 dBMeasurement accuracy: ± 3dB (20 ℃ ± 5 ℃)Resolution: 0.5dB Voltage measurement Input range: 1 ~ 100V (AC / DC)Measurement accuracy: ± 2VResolution: 1VOperating temperature: 0 ℃ to 40 ℃ Power supply Battery: 7.4V / 800mAH lithium batteryWorking time:> 6 hours (audio / LCD backlight off)Charging time: ≤ 3 hoursExternal power supply: INPUT: 100 ~ 240V ~ 800mA 50 ~ 60HzOUTPUT: 9V ~ 2000mA. Others Dimensions: 210mm * 90mm * 48mmTotal Weight: 650gAudio output: built-in speaker (single-frequency mode manual start)