Unfortunately due to supplier shortages stock is now expected week commencing 28th Feb.
Radio Frequency Battery Heat Detector WITH 10 YEAR LITHIUM BATTERY Interconnect up to 20 wireless detectors • 10yr Sealed Lithium Battery • Battery only with integrated RF technology • Activated by twist and click mounting bracket • Loud 85dB alarm• Insect proof • Test function and hush feature • Easy Installation• Compatible with Hispec Control Unit HSSA/CU/RF10-PRO