Features: Generate ampere and voltage by one module. Output voltage?: 0-10?V, the accuracy is 0.01?V. Current output: 0-22mA, the accuracy is 0.01mA. Press the button to save the setting output value. Clear 4-digit LED digital display screen. Power supply: micro USB-5V or external DC 15-30V power supply. Simple and convenient to use with aluminum alloy button. Super compact and lightweight, easy to carry. Features: Material: plastic + aluminum alloy Type?: with/without built-in battery (optional) External power supply:?DC 15- 30?V Power: without built-in battery: 1?W with integrated battery: 5W Output voltage: 0-10?V, precision?: 0.01?V, max. Fluent : 20mA Current output: 0-22?mA, accuracy?: 0.01?mA Screen:?4-digit LED digital display Item size: 70*90*27mm/2.8*3.5*1.1in Item Weight: With Built-in Battery?: 111g / 3.9ozwithout built-in battery: 90g / 3.2oz Package List: 1 * Signal Generator