The lease shall set forth the circumstances under which the landlord may enter the dwelling unit during the tenant's possession thereof, which shall be in addition to the provisions of sections 47a-16 and 47a-16a of the Connecticut General Statutes, and shall provide:
(1) The landlord may not enter the dwelling unit without the consent of the tenant except where there is reasonable cause to believe that an emergency exists;
(2) The landlord may not enter the dwelling unit without advance notification to the tenant except when there is reasonable cause to believe that an emergency exists or if the tenant has abandoned or surrendered the dwelling unit;
(3) A written statement specifying the purpose of the landlord's entry delivered to the dwelling unit at least forty-eight hours before such entry shall be considered reasonable advance notification; and
(4) If the tenant and all adult members of the household are absent from the dwelling unit at the time of entry, the landlord shall leave in the dwelling unit a written statement specifying the date, time and purpose of entry prior to leaving the dwelling unit.