Blaupunkt HD-S1 - Battery Replacement Procedure; Specifications and Compliance; Environmental Conditions; Radio Frequency

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The Heat Detector uses three 1.5V AA alkaline batteries as its
power source. It also features low battery detection function to
notify the Control Panel when battery voltage is low.
When Heat Detector is on low battery, follow the procedure below
to change the batteries.
1. Rotate the Heat Detector clockwise to remove it removed from
the mounting bracket.
2. Remove the battery compartment cover.
3. Remove the old batteries.
4. Press the learn/test Button several times to fully discharge.
5. Insert the new batteries and orient them according to the
correct polarity. The Heat Detector will sound a two-tone beep.
6. Replace the battery compartment cover.
7. Hook the Heat Detector back to the mounting bracket
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-10°C to 40°C, relative humidity 85% non-condensing.
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433 MHz
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This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including
interference that may cause undesired operation.
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To assure continued compliance, any changes or modifications
not expressly approved by the party responsible for compliance
may void the user's authority to operate this equipment. (Example
- use only shielded interface cables when connecting to computer
or peripheral devices).
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