10-year sealed tamper proof lithium battery-powered radio frequency control unit for the Hispec RF10-PRO wireless interconnectable smoke, heat and carbon monoxide alarm range. Test, locate and silence connected devices remotely through 1 control unit without the need to access ceiling mounted devices. Interconnectable with up to 19 Hispec RF10-PRO devices. 10-Year Sealed Tamperproof Lithium Integrated Battery For Use with up to 19 Alarms Interconnectivity with RF- PRO Alarms Tests, Locate & Silence Alarms Remotely Wall-Mounted or Portable for Convenient Access Hub Not Required 10-Year Sealed Tamperproof Lithium Integrated Battery For Use with up to 19 Alarms Interconnectivity with RF- PRO Alarms Tests, Locate & Silence Alarms Remotely Wall-Mounted or Portable for Convenient Access Hub Not Required