(a) This section does not apply to:
(1) a fire alarm, a smoke detector, a smoke alarm, or an ancillary component that is:
(i) electronically connected as a part of a listed centrally monitored or supervised alarm system; or
(ii) capable of sending and receiving notifications by:
1. a low-power radio frequency wireless communication signal; or
2. a wireless local area networking capability; or
(2) any other device that the State Fire Marshal designates as exempt through the regulatory process.
(b) On or after October 1, 2018, a person may not sell a battery operated smoke alarm in the State for compliance with this subtitle unless the smoke alarm is a sealed, tamper resistant unit incorporating a silence/hush button and using one or more long-life batteries.