Feature: 1. MEASURING RANGE AND ACCURACY: AC display meter measuring voltage from AC60‑500V, accuracy for 1%, with 2 times per second measurement speed of high efficiency 2. ACCURATE AND RELIABLE: Possess the advantages of high accuracy, high stability, high reliability, low power consumption, small size, easy installation, and digital direct reading display voltage, and is the ideal product to replace various pointer electrical meters 3. SIMPLE INSTALLATION: Two wires of voltmeter can be connected directly to the voltage being measured, and the voltage can be measured without a power supply 4. SMALL SIZE: The voltmeter has an ultra small size of 70x43mm and can be flexibly installed anywhere 5. DIGITAL DISPLAY: Digital electrical measuring instrument is mainly used for real time measurement of the DC voltage in the electrical line, and display with Nixie tube digital direct reading mode Specification: Item Type: AC Display Meter Material: ABS Measuring Range: AC60-500V Input Voltage: AC60-500V Output Voltage: AC60-500V Ambient Temperature: -25~+50℃ Measurement Accuracy: 1% Size(LxW): Approx. 70 x 43mm / 2.76 x 1.69in. Package List: 1 x AC Display Meter