Everything necessary for immediate field use: pH SD Card Logger 850060, sealed epoxy body reference combination electrode with a BNC connector and a 2½' cable, ATC temperature probe, pH buffers 4, 7, 10 and deionized water, batteries and instructions. All components are contained in a slim but protective hard-shell, foam-lined case. Kit dim: 11” x 7½” x 2½” (280 x 190 x 63mm).