Heartwood FIDC Infrared Detector Wand MCM 72-6771 72-6772 USPS sorting diag
Heartwood FIDC Fiber-Optic Infrared Detector Card Light Gauge Polarity Tester. Condition is New. Similar to the ApinexF1-IDC, and MCM 72-6771 (wand) or MCM 72-6772 (card). This heavy-duty laminated card contains an indicator swatch for identifying the presence of non-visible infrared light (but it works with 850nm multimode wavelengths as well).