1The DC digital display current smart meter can be used for the measurement and display of a single current in the electrical circuit, and can be attached with a relay alarm output 2Can set upper and lower limit alarm, alarm delay, alarm return difference, with current realtime monitoring and alarm output function 3The ammeter has overload protection function which can better protect the circuit 4The product adopts Hall sensor which can make sure the transmission and stability of signs 5Adopted of high quality electronic components, and accuracy process, ensure for the durability Item Type: Digital Display Ammeter Material: Plastic Model: SZD07 Input Voltage: DC8-35v Measurement Type: DC current Range: 0.3-50A Sensor: Hall sensor Sensor Input Current: 25A Sensor Output Voltage: 2.50.625V Sampling Frequency: 2 times/s Alarm Output: Upper and lower limit alarms are output from the same relay Contact Capacity: 6A/250VAC, 6A/30VBC, resistive load Working Environment: Non-corrosive occasions with temperature -10~50, temperature1 x Digital Display Ammeter 1 x Sensor 1 x English User Manual 1. Before powering on, please reconfirm whether the auxiliary power supply, input signal and wiring of the instrument are correct.(The corresponding value of the auxiliary power supply must match, otherwise the instrument will be burnt out)2. To monitor a single current, the transformer can not run through multiple routes at the same time, which will affect the measurement results.3. Contact capacity: 6A/250VAC, 6A/30VDC