[Junk] GPS Logger Assortment

This is a set of GPS loggers.
We have confirmed that they power on, but we have not confirmed if they can actually track location.
For models with built-in batteries, the batteries may be degraded.
Some units have undergone hydrolysis, becoming sticky, or have had parts dissolve and disappear.
These are sold as junk items with no guarantee of operation.

〇 Trackfiler (appears to be for bicycles)
〇 Wristwatch-type GPS
　The band has undergone hydrolysis and is missing. The battery may be degraded. The charger has also partially undergone hydrolysis.
〇 GPORTER GP-102+ (The battery may be degraded.)
〇 GPS Logger MK-GPSL
〇 GPS Walker
　The buttons have undergone hydrolysis and are missing. The tactile switches appear to be functional.
〇 GT-730FL-S
　The body was sticky due to hydrolysis, so wiping it with anhydrous ethanol has improved it somewhat. The battery may be degraded.