... -90~+90 3 more ea gradiometer, gradient meter Digital incliometer / gradient meter SDC200 Features1.) In-built solid sensor component, ... Resolution up to0.01°)b) Optimum design of Downhole instrument structure,Cancelled the oscillating device, which cause an operation ... groove, side slope, groundsill, pier and so on foundation displacement during observed.Technical Datas SDC200Parameters Value Units ...