Intuitive LCD display that is easy to read at a glance Thanks to its small size, the meter can be mounted in many places without taking up too much space. Professional and practical design, beautiful appearance . 1. measurement frequency range: 45Hz-65Hz (only working frequency voltage can be measured) 2. voltage range: AC80-300V 3. measurement accuracy: 0.5% 2 words 4. LCD display: word height 20mm Installation hole size is the same as 5135 LED type meter head. 7. external dimensions: 79*43*31mm 8. mounting size: 76*39mm We only sell current and voltage meters, not other items in the photo. Due to the difference between monitors, the photos may not reflect the actual color of the item . Please allow for minor dimensional errors due to manual measurement.