Yes, you can definitely use the Hochiki AP7 Hand-Held Programmer as a replacement for the TCH-B200. The AP7 offers similar functionality and is designed to work with Hochiki fire alarm systems. You shouldn’t encounter any compatibility issues as long as your system is compatible with Hochiki devices. Make sure to follow the manufacturer’s instructions for programming and compatibility checks to ensure a smooth transition. If you have any further questions or need assistance with the replacement process, feel free to reach out to us for support.