https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions
Product Info
433MHz 8-way RF wireless I/O Module for 2km-3km remote pump control on-off control module

433MHz 8-way RF wireless I/O Module for 2km-3km remote pump control on-off control module

KYL communication equipment co.,Ltd
Region: China
Update: 12/19/2016
Key Specifications
Characteristics:

1. 8-way isolated input, high reliability and stability.

2. 8-way relay dry contact output, contact current is 220V, 5A.

3. Collocated with a wireless data module inside whose transmitting distance is about 2km-3km; the working frequency 433MHz (400-470MHz); RF power: 1000mW; Receiving sensitivity: -123dBm

4. Receiving current: 60mA; transmitting current: 350mA

5. Power supply: DC 12V-30V

6. Dimension: 145mm*90mm*40mm

Application:

example 1: point to point to control

KYL 818 communicates with KYL-818

example 2: point to multipoint control

1KYL-818 communicates with 4 KYL-813 or 2KYL-815

https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions