Technical specifications for the Tapo S200B indicate the use of Sub-1GHz radio frequencies (868/922 MHz) for wireless communication. This frequency choice provides superior wall penetration and reduced interference compared to the saturated 2.4GHz band. The hardware includes a rotary encoder with tactile detents, utilizing an infinite scroll digital mechanism to eliminate the wear associated with mechanical potentiometers. Power is supplied by a CR2032 battery with an estimated 12-month operational lifespan.
Structural features include a magnetic base for mounting on metallic surfaces or standard wall plates. The device is not a standalone Wi-Fi unit and requires a Tapo H100 or H200 hub for network integration. While optimized for the Tapo/Kasa ecosystem, the rotary encoder allows for high-precision dimming commands that are transmitted with near-zero latency within the Sub-GHz spectrum.
Those seeking a controller that doesn't require a proprietary hub should evaluate the Nanoleaf Wireless Smart Switch, which utilizes the Matter-over-Thread open standard.
This device is categorized among wireless programmable buttons, utilizing Sub-GHz technology for enhanced signal reliability.