Kestrel Belt Carry Case f/4000-5000 Series Sturdy belt case designed for the Kestrel 4000/5000 series meters Unique design keeps meter sensors exposed to the outside air and does not obstruct display Nylon/fiberglass composite case with neoprene lining holds meter and extra batteries Hook accommodates up to a 2 1/4" belt and attaches reliably over a waistband Includes a strong hook/loop strap for easy mounting to backpack or harness strap