We have a notice in all rooms informing the customers if there is any signs of smoking in the rooms they will be charged a cleaning fee of $400 and we also have a sign telling them the information listed below.
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The smoke detectors in this unit are very sensitive and smoking can set them off. They are hard wired into the mains with a battery back-up. Removing the battery will not shut down the fire alarm and may result in setting the alarm off. Doing so will automatically send an alarm to the fire brigade listing your unit as the outbreak of the fire. The fire brigade have a call out fee of $500 for false alarms that will also be added to your account.
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It seems to work but we still get the odd one that smokes and we have charged the $400 a few times now.
Ps our smoke detectors are not monitored by the fire brigade but it sounds good.