ALRE-IT FTRFB-280.119 Wireless Room Temperature Sensor with Setpoint Adjuster, Radio, White

Experience precise climate control without cables: the ALRE FTRFB-280.119 transmits on a reliable 868.3 MHz frequency with under 10 mW power, ensuring stable communication up to 100 m in open field. Its internal NTC sensor measures 0 to +50 °C, while the rotary knob adjusts setpoint by ±3 K for personalized comfort.

Overview

The ALRE FTRFB-280.119 is a wall-mounted wireless room temperature sensor designed for seamless integration into the ALRE wireless system. It features an internal NTC sensor for accurate temperature measurement and a rotary knob for manual setpoint adjustment, enabling users to fine-tune their heating or cooling system. The device communicates via radio frequency, eliminating the need for complex wiring and offering flexible placement.

What stands out

• Wireless freedom with 868.3 MHz radio transmission, no cables required
• Manual setpoint adjustment via rotary knob, ±3 K range for personalized comfort
• Long battery life of approximately 2 years with two AAA batteries
• Clean, pure white design (RAL 9010) that blends with any interior
• IP20 protection, suitable for indoor wall mounting

Technical details

• Product type: Wireless room temperature sensor with setpoint adjuster
• Radio frequency: 868.3 MHz, transmission power < 10 mW
• Sensor: Internal NTC, measuring range 0 to +50 °C
• Setpoint adjustment: ±3 K via rotary knob
• Power supply: 2x AAA 1.5V batteries (battery life approx. 2 years)
• Transmission interval: 10 minutes (default, configurable)
• Protection class: IP20
• Mounting: Wall-mounted
• Housing material: PC plastic
• Colour: Pure white (RAL 9010)
• Operating temperature: 0 to +50 °C
• Relative humidity: 0–95% RH, non-condensing
• Compatibility: ALRE wireless system (e.g., FTRFB-280.100 receiver)
• Display: No (rotary knob for adjustment)
• Certifications: CE

Our verdict

The ALRE FTRFB-280.119 is a reliable and flexible solution for wireless temperature sensing and setpoint adjustment, ideal for retrofitting or new installations where cabling is impractical. Its long battery life and simple rotary control make it user-friendly, while the clean white design fits any room.