https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions
Product Info
CCD-570F 7" Wireless Monitor w/wireless CCD Camera

CCD-570F 7" Wireless Monitor w/wireless CCD Camera

Panvista Limited Co.
Region: Taiwan
Update: 11/07/2006
Key Specifications
-Receiving Frequency: CH1:2.414GHz/CH2:2.432GHz/CH3:2.450GHz/CH4:2.468GHz

-Receiving Sensitivity: 88dBm

-Antenna Input Impedance: 75 ohm

-Display screen LCD screen, AUO 2.5 inches

-Capacity of memory Support the SD card

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