1、Accurate Measurement: This PON power meter provides accurate power measurement at wavelengths of 1310nm, 1490nm, and 1550nm, with high isolation. 2、User Friendly Design: Equipped with a color LCD screen, this power meter provides clear and easy to read results, also allows for threshold settings and data storage of up to 10 records. 3、Versatile Compatibility: The PON power meter uses for APC fiber connector, can be easily interchangeable with SC or ST connector, suitable for different fiber optic setups. 4、Good Performance: The optical power meter adopts sensitive chip with sturdy internal structure, high accuracy, optional switching display, and automatic power off function. 5、Multiple Usages: This handheld PON optical testing device can help check the performance of cables, calculate relative power loss, locate faults, and troubleshoot them.