Product Description CD series is popular product in international market. Accuracy: 0.5class Maintenance time of data with power'' off: ≥ 20years Comsumption of power: ≤ 3w Operation condition: Temperature 0~50?C comparative moist ≤ 85% Alarm way: Full-scale setting, absolute value or windage value Relay output contact capacity: AC220V 3A Solid relay spring signal: Voltage≥ 12v, current≥ 15mA Controllable silicon spring siginal: ≥ 100mA