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Loud indication sound (the 100 dB at 1m)
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The visual indication is visible in all positions
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Direct access to the battery and sealed electronics compartment (IP65)
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Permanent standby status with automatic wake up function
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The presence of voltage within the calibrated range or above is indicated by a RED light and abeeping sound
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Self test OK the OK status (ready for use) of the device is indicated by a GREEN light
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The self test checks all the circuits, the reference detection level and the battery voltage
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The “ready for use” state is indicated by the green indication for 2 minutes
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A low battery level is indicated by an ORANGE light