(1) All audible alarm systems shall have a sign or notice posted on or near the system with the name and telephone number of the person responsible for the service and maintenance of the system. The notice shall be conspicuously posted and readable from ground level.

(2) All audible alarms shall be equipped with a device that will deactivate the alarm system not more than fifteen (15) minutes after activation. It is unlawful for an alarm user maintaining an audible alarm system to cause, permit, suffer, or allow such system to ring for a period in excess of one (1) hour after notification of the alarm activation or after efforts of notification have been made of such conduct shall constitute grounds for revocation of the permit. In addition, should an alarm fail to be silenced within the time limits prescribed in this section, the Humboldt County Sheriff’s Office shall have the authority to hire an alarm agent to silence the alarm. All costs and expenses incurred by the Humboldt County Sheriff’s Office in hiring an alarm agent to silence the alarm shall be borne by the permittee.

(3) Any alarm system which has an automatic shutoff with a rearming phase must be able to distinguish between an open and closed circuit; and, if the circuit is open, will not rearm.

(4) No audible alarm shall be installed, maintained or activated which emits the sound of a siren similar to those utilized on emergency vehicles or for civil defense disaster warnings.

(1) No alarms shall have an Automatic Dialing system that connects directly with the Humboldt County Sheriff’s Office.

(2) All alarm systems shall have a standby back-up power supply which will automatically assume operation of the alarm system should any interruption occur in the power to the system. The transfer of power from the primary source to the back-up source must occur in a manner which does not activate the alarm. Back-up power supply must be capable of at least twelve (12) hours of operation.

(3) All silent burglar alarm stems installed after the effective date of this chapter shall have a pre-alert or pre-alarm unit allowing the user to reset the system if activated in error, before the system goes in to full alarm activation. This section does not apply to banks, savings and loans, liquor stores, and other high-risk businesses as determined by the Humboldt County Sheriff’s Office.