1. The Carrier Board That Integrates The Kq-330f Module And Peripheral Circuits Does Not Require Other Coupling Components, And Can Be Directly Connected To 220v Ac Power. The External Dimension Is 53x38x17 Mm (lxdxh), And The Single Row Of Pins Leads Out. 1 And 2 Pins Are Connected To 220v Ac Power Supply Without Direction (1 Pin, 2 Pin Spacing 2x0.1 Inches), 2 Feet And 3 Feet Are 1.1 Inches Apart, And The Rest Of The Feet Are 0.1 Inches Apart. 2. The Working Frequency Is 120~135khz, And The Interface Baud Rate Is 9600bps. The Actual Baud Rate Is 100bps. 3. The Maximum Length Of One Frame Of Continuous Mission Is 52 Bytes, The Length Of One Frame Of Continuous Mission Is Defined By The User From 1 To 252, And The Module Will Not Send Redundant Data 4. Receiving Sensitivity Mv 5. Out-of-band Rejection Capability 60 Db 6. Bandwidth 0 Khz 7. Insulation Resistance 500v 00m 8. Power Supply: Dc +5v When Receiving: 1ma When Sending 30ma 9. Power Frequency Insulation Withstand Voltage: