The ornamental design for a handheld spectroscopytestkitadapter, as shown and described.
FIG. 1 is an isometric view of a handheld spectroscopy test kit adapter with a test stick inserted;
FIG. 2 is an isometric view of the handheld spectroscopy test kit adapter without the test stick inserted;
FIG. 3 is a front elevation view of the handheld spectroscopy test kit adapter with the test stick inserted;
FIG. 4 is a front elevation view of the handheld spectroscopy test kit adapter without the test stick inserted;
FIG. 5 is a back elevation view of the handheld spectroscopy test kit adapter with the test stick inserted;
FIG. 6 is a side elevation view of the handheld spectroscopy test kit adapter with the test stick inserted;
FIG. 7 is a top elevation view of the handheld spectroscopy test kit adapter with the test stick inserted;
FIG. 8 is a top elevation view of the handheld spectroscopy test kit adapter without the test stick inserted; and,
FIG. 9 is a bottom elevation view of the handheld spectroscopy test kit adapter.
The broken lines depicting the test stick represent environmental structure, and the remaining broken lines represent portions of the handheld spectroscopy test kit adapter that form no part of the claimed design.