Description: Multi-functional electronic clock module, set time, inside and outside temperature, voltage as a. You can display a single item, or you can cycle through the items alternately and customize the item to be displayed. Time chip using RX8025T chip, this chip is a temperature compensated clock chip, time accurate. temperature range -35 ~ 120 degrees. With brightness adjustment, 3 brightness adjustable. And automatic brightness function, can be dark at night, brighten during the day. Specification: Working voltage: 5.0 ~ 50 V Frame size: 58x22mm/2.28x0.87inch Installation hole size: 19.5x56mm/0.77x2.20inch Voltage display range: 5.0 ~ 50 V Temperature display range: -35 ~ 120 ° Size Chart: 58x22mm/2.28x0.87inch Package Includes: 1 Piece Clock Temperature Voltage Monitor Panel Meter Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!