... Security TesterVideo TestSignal modeNTSC/PAL (Auto Adjust)Display3.5 inch TFT-LCD ,960 x 240 resolutionLCD adjustAdjustable ... 50ΩDiode2.0V Range, 1mV resolutionCapacitor6600pF~66,000μF auto/manual rangePOWERPower AdapterDC5V, 2ABattery1 pcs Lithium Ion ... Polymer Batteries, 3.7V DC3000mAhRechargeable4.5 hours recharging time, work for 12 hoursLow ConsumptionSleeping mode ...