UPS (Uninterruptible Power System), which is an uninterruptible power supply, is an uninterruptible power supply with a constant voltage and constant frequency with an energy storage device and an inverter as a main component. Mainly used to provide uninterrupted power supply to a single computer, computer network system or other power electronic equipment. When the mains input is normal, the UPS supplies the mains voltage to the load for use. At this time, the UPS is an AC mains voltage regulator, and it also charges the internal battery; when the mains is interrupted (accident blackout) At the same time, the UPS immediately supplies 220V AC power to the load through the inverter conversion method, so that the load maintains normal operation and protects the load soft and hardware from damage. UPS devices typically provide protection against excessive voltage and low voltage. 80m Handheld Laser Distance Meter
HIGH ACCURACY&STABILITY - Using laser precision technology, accuracy up to ±3mm, measurement distance extends up to 80m. Switchable between Ft / In / M for free adjustment.
LCD BACKLIGHT AND MUTE SETTING - The backlight screen gives you better visibility in dark areas. With the mute function, you can switch the acoustic signal on or off as you wish. Suitable for use in libraries, classrooms, and other quiet locations.
MULTIPLE MEASUREMENT FUNCTIONS - area, distance, length, volume, continuous measurement, pythagorean method - three points; Addition and subtraction. The laser rangfinder is ideal for home, construction and industries, especially in large areas such as rooms, apartments, buildings, real estates, factories, warehouses, etc. 80m Handheld Laser Distance Meter,indoor outdoor laser distance measurer,outdoor distance measuring equipment Chengdu ZT Electronics Technology Co., Ltd. , https://www.lasermeasuretool.com