氟利昂气体报警器（制冷剂泄漏报警器）
# Freon Gas Alarm (Refrigerant Leak Detector) Freon (refrigerant R22/R134a/R410A/R404A, etc.) alarm, used to detect refrigerant leaks in refrigeration systems; most Freon gases are heavier than air, and after leaking, they settle and accumulate at lower levels. High concentrations can cause **suffocation and cardiac stimulation**, and when exposed to high temperatures, they decompose into toxic fumes. Most Freon gases are non-flammable themselves, but in confined spaces, excessively high concentrations can displace oxygen and cause suffocation. They are divided into two main categories: **fixed industrial alarm systems** and **portable leak detectors**.
