Oscilloscope 8 in 1 Tool unboxing review. br br Digital oscilloscope, logic analyzer, signal PWM generator, frequency counter br br This product is not include 9V Battery but include plastic box. br br 1).OSCILLOSCOPE: The maximum sample rate is 1MSPS(one channel), and the measure voltage range is between 0V and 12V. br 2).LOGIC ANALYZER: We have four sampling channels and one Clock Input. The sampling depth is 180 bits.The maximum External Input Clock is 1MSPS. br 3).VOLT AND LOGIC Test: The measure voltage range is +0V to +15V.Four Channels, measure Logic-0Logic-1. br 4).Signal GENERATOR: The output frequency is between 1Hz and 199KHz, the square-wave signal output. The effective setting frequency value is three-digit. br 5).PWM GENERATOR: The output frequency range is 0.1 KHz~25.0 KHz.Duty Range is 0~99. br 6).EVENT COUNTER: The display shows the 7 digits. The display count number is 0~9999999. br 7).Frequency COUNTER: Frequency COUNTER Measurement 10Hz to 20MHz and Auto Range. br 8).RC SERVO: Generates 1.0ms to 2.0ms pulse for rc servos, the RC output duty cycle is 20ms. br br General Specifications: br PIC32 DSP Core: 50 MHz83 DMIPS MIPS32® M4K® br Graphic LCD display 2.2", 320x240 pixels br PCB size: 9.4 cm x 5.0 cm br 3 tactile switches(U,S,E Keypad) br Power Supply: Battery is 9V Ni-MH.( You must buy Battery in additional) br br Main improvement would be input Oscilloscope Amplifiers to allow reading of milli-volts. br br The product needs to be assembled and soldered by yourself. br br Please hyperlink the following website to download the documentation(PDF) br br br br .