Signal Generator Features Generates both ampere and voltage in a single module. Voltage Output: 0-12V with precision of 0.01V. Current Output: 0-24mA with precision of 0.01mA. Equipped with a built-in 1100mAh rechargeable battery for flexible usage. Easy save functionality by pressing the knob to store output values. Clear 4-digit LED digital display for easy reading. Compatible with micro USB-5V or external power supply DC 15-30V. Designed for simplicity and ease of operation with an aluminum alloy knob. Super compact and lightweight design ensures easy portability. Specifications Material: Plastic + Aluminum Alloy Available in two types: with or without a built-in battery (optional). External Power: DC 15-30V Power Consumption: Without Built-in Battery: 1W With Built-in Battery: 5W Voltage Output: 0-12V with 0.01V precision, Max. Current: 24mA Current Output: 0-24mA with 0.01mA precision Screen: 4-digit LED Digital Display Built-in Battery: 3.7V 1100mAh Lithium Battery Dimensions: 70mm x 90mm x 27mm / 2.8in x 3.5in x 1.1in Weight: With Built-in Battery: 111g / 3.9oz Without Built-in Battery: 90g / 3.2oz Package List 1 x Signal Generator