Feature: The shell of the product is made of high-quality plastic and has good impact resistance. The product uses LED as light source with low power consumption and long service life. The product is very compact, light and easy to install. This series of indicators are suitable for signal indication, warning signal, accident signal and other indicative signals in the circuit of electric power, machine tools, ships, printing, mining machinery and other equipment. The display numbers are clear and easy to read, enabling the observer to immediately understand the status of the readings. Specification: Material: Plastic Test range: 20-500 (V) Output voltage: AC 22-500V Ambient temperature: -10~+50°C Dimensions: 30 (mm) Color: Red; Green; Yellow; Blue; White(Optional) Package list: 1 * Meter LED Indicator Light Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product. The shell of the product is made of high-quality plastic and has good impact resistance The product uses LED as light source with low power consumption and long service life. The product is very compact, light and easy to install. This series of indicators are suitable for signal indication, warning signal, accident signal and other indicative signals in the circuit of electric power, machine tools, ships, printing, mining machinery and other equipment. The display numbers are clear and easy to read, enabling the observer to immediately understand the status of the readings.