This signal generator supports 15-30V external operating power, 5V micro USB port and built-in lithium battery, brighter 4-digit LED display, two decimal point accuracy , calibrated output, high precision, two decimal point output, 0.01V 0.01mA. Features: Have rough and precise adjustment modes, the rotation of the turns is adjustable. Have a switch button to switch between current and voltage output. Current and voltage outputs simultaneously, output wiring terminals are independently. Has 2, 3 and 4 wire current outputs. (Active and passive support) Multiple output range: 0-3.3V, 0-5V, 1-5V, 4-20mA, 0-20mA, etc. The output range is adjustable and programmable. Programmable multiple display mode: current voltage value display, 0-100% display, 0-50.0Hz display. Output terminals have short circuit protection, power terminals have reverse polarity connection protection. Infinite rotation knob, high precision for long life to adjust the output. Mush more stable and precise than potentiometer type. Comfortable small size external shape: alloy adjustable button, stylish external casing, easy to carry. Pluggable wiring terminal blocks, very practical for making a wired connection. Features: Current output range: 0-22mA adjustable Output voltage range: 0-10V DC adjustable Output voltage: max. 100mA Battery: 3.7V, 1000mAh Item size: 100 * 60 * 25mm / 3.9 * 2.4 * 1.0in Item Weight: 100g / 3.5ounce Package size: 100 * 60 * 25mm / 3.9 * 2.4 * 1.0in Package weight: 100g / 3.5ounce Package List: 1 * Signal Generato