The Eberle indoor thermostat model RTR-E 6721 is a surface-mount device ideal for managing heating and cooling systems. It offers a 24-hour mode for precise room temperature control. This product is commonly used in homes for efficient temperature regulation and energy management. https://elecena.pl/product/28800174/eberle-111170151100-rtr-e-6721-thermostat-surface-mount-24h-heating-cooling 2025-05-25 https://elecena.pl/product/28800174/eberle-111170151100-rtr-e-6721-thermostat-surface-mount-24h-heating-cooling 2026-07-13