SafetyTechnology International STI-13220NY 27/02 Studies have shown that low-frequency
$142.95
Description
Studies have shown that low-frequency audible devices that operate around 520 Hz are more effective in waking individuals in sleeping areas
NOTE: Key not included
high-performance LEDs require fewer circuits and power supplies
Power-on indication
SafetyTechnology International STI-13220NY 27/02 Studies have shown that low-frequency
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