B: Hi, Betty. Larry here. How many smoke detectors are in your apartment?

A: Actually, I have two.

B: Are the batteries fresh?

A: Both batteries are good.

B: Great. I need to come by and check them myself.

A: No problem, when are you coming by?

B: Thursday at noon. I'll let myself in if you're not there.

A: Okay, remember to lock my door when you leave.

B: I'll be in and out of there in just a few minutes.