2X Modbus Rtu 7-24V 4 Channel Relay Module Switch RS485/TTL UART Communication Interface Connection 8-Bit MCU Control

6. Output signal: relay switch signal, support manual, flash , flash mode, flash /flash
The base of the delay time is 0.1, and the maximum flash time can be set as
0XFFFF *.1s=65535*0.1S=6553.5S
7. Device address: range 1-255, default 255 supports power- save
8.There are 4 onboard 5V, 10A/250VAC10A/30VDC relays, which can be activated continuously for 100,000 times, with diode effusion protection, and short response time.
9. On-board relay switch indicator
10.Power supply voltage: DC7-24V, support DC socket/5.08mm terminal power supply, with input anti-reverse protection
Colour:Blue
Material:plastic
Size:93x87mm

Package Contents:
2 * Modbus Rtu 4CH Relay Module

Only the above package content, other products are not included.
Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.