Simple to use, the HTR-RF(20) is perfect for users who appreciate a traditional dial face and want minimal intervention in the heating system. With silent switching and TPI (Time Proportional & Integral) calibration, accuracy and efficiency are nevertheless assured.

FEATURES

• Stylish compact surface mounted solution
• ‘Self-learning’ functionality time proportional and integral (TPI)
• ErP rating IV
• Valve protection function (VPF)
• LED status indication
• Night setback function
• ZigBee wireless Smart Home App integration
• Zigbee 2.4 GHz
• 5 year warranty