Performance: high precision, low-consumption operational amplifiers were compared, calculating, light-emitting diode display. High sensitivity and reliability in operation. Small size, light weight, low power consumption. Portable design, easy to carry. Range: 10 cubic ten of the twelve square 103-1012ohm/sq, Dimensions: 72W × 27H × 130D Weight: 0.14KG Power Supply: 9V |