Produino STM8S003 H20V 0.36" LED DC 3-Digital Display Low Pressure Alarm Digital Voltmeter- Black
Technical parameters: Measuring range: DC 3.5~30V; Minimum input: DC 3.5V ; Maximum input: DC 30V (This voltage is higher than the risk of burnt); Tolerance: 1% (+/-1 words); Display: 0.36" LED 3-digital tube; Display colour:red; Refresh rate: about 500mS / times; Power supply: DC3.5-30V; Current consumption: less than 20mA typically 5~15mA Working temperature: -10'C~65'C