DSO138 digital oscilloscope installation kit Main features Model: DSO138  Analog bandwidth: 0 - 200 KHz Sampling frequency: 1 Msps max. Sensitivity: 10 mV / Div - 5 V / Div - sensitivity error:  5%  Vertical resolution: 12 bit. Base time: 10us / Div  500s Div record length: 10202.  4 embedded dots. 1 KHz / 3, 3 V, wave-shaped test signal (HOLD) available Power supply: 9 V DC (acceptable 8 to 12 V ). Supply current: 120 mA. Note: power supply not included. Size: 117mm x 76mm x 15mm. Weight: 70 grams