TS-4348/UV
From Night Vision Wiki
TS-4348/UV is a portable Night vision resolution tester. As its made in the 90s, it is only compatible with legacy devices such as PVS-7, PVS-14, ANVIS-6.
There are 4 settings you can choose. GEN2/3 or HIGH/LOW. Gen2 option will be brighter than Gen3 option.
You will see USAF 1951 chart once you turn it on, and attach to your device's objective lens.
