Product Description
The D-243 features a solid-state surface-mount circuitry and are designed for low power consumption, precision and stability.
ADVANTAGES
• Easy to install – install directly to proper location without any wiring.
• Easy to maintain – minimum one year battery life under normal operation.
• Easy to test – the LED alarm indicator doubles as a test button – just press it for 2 seconds and hear the alarm sound to confirm that it is working in normal condition.
• Low battery warning – “unit beeps” every one minute for at least 7 days to indicate battery needs replacing.
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