Military Replacement 4.5" Multimeter Phaostron PHS4-103 AC/DC Amperes Ohms W Box

Comes in original military shipping packaging with national stock number. Has a manufacture date of Jan 1965. Also has original packet of hardware. Check photos for condition and contents.

The Phaostron multimeter model corresponding to NSN 6625-649-3125 is likely a highly ruggedized, precision analog multimeter designed for demanding military and aerospace applications. While specific operational manuals were not available in the search results, Phaostron specializes in robust instruments that can withstand harsh environmental conditions like vibration, shock, and extreme temperatures. 

Phaostron has manufactured a wide range of meters since 1937, with their instruments used in military ground support, aviation, and industrial settings where accuracy and durability are critical. This specific multimeter likely offered multiple scales for measuring AC/DC voltage, current (amperes/milliamperes), and potentially resistance (ohms), typical functions for a general-purpose military VOM. 

Selling as pictured.

More than welcome to pick up at shop in Butler PA & save shipping.

012926-JM8