Pool alarms and safety covers are two of the four approved barrier options under Florida law — and both have a role in a layered safety strategy. Neither replaces supervision or fencing, but together they form a valuable secondary line of defense.
Pool alarms: types and limitations
Florida allows two types of pool alarms to satisfy the barrier requirement under F.S. 515:
- Subsurface (wave sensor) alarms — mounted to the pool wall below the waterline. They detect displacement waves when someone enters the water. Brands include Poolguard and Safety Turtle. They must meet ASTM F2208. These are the most reliable type for detecting actual water entry.
- Wristband/remote alarms — worn by children. Sound when submerged. Useful as a backup but depend on consistent use and charged batteries.
- Door/gate alarms — detect when a door or gate to the pool area is opened. Must meet ASTM F2092 to satisfy Florida code. These sound before the child reaches the water, giving you time to respond.
Limitation: All alarms require a rapid human response to be effective. An alarm is worthless if no one is home or close enough to respond within seconds.
Safety covers: types and standards
A compliant safety cover must meet ASTM F1346 — this means it can support the weight of a child and a rescuer (minimum 485 lbs) without submersion.
- Motorized safety covers — retract with a key switch. The gold standard for convenience and safety. Must be used consistently to be effective. Typically cost $5,000–$15,000 installed.
- Manual safety covers — anchored with straps and buckles. Less convenient but effective when properly secured. Much cheaper but require discipline to use every time.
- Solar blankets / solar covers — NOT safety covers. They float and can trap a child beneath them. Never rely on a solar blanket for drowning prevention.
Layered safety strategy
The CDC recommends a four-layer approach to pool drowning prevention:
- Adult supervision (within arm's reach for young children)
- Physical barrier (fence + self-latching gate)
- Secondary barrier (alarm or cover)
- CPR training for all household adults
No single layer is sufficient. Each one increases the time available for intervention if a child enters the pool area undetected.
The most dangerous moment is when adults think someone else is watching. The fence and alarm don't get tired or distracted — build them into your pool before you need them.
Want a pro to handle this?
Our CPO-certified techs run this exact playbook on every weekly service visit.