KRC Technology Company KRC002 用户手册

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Door/Window Detectors fitted).  
3. 
Additional detectors may also be fitted where required to other vulnerable 
doors or windows, (e.g. garage, patio/conservatory doors etc). 
 
Note: Take care when fixing the Detector to a metal frame, or mounting 
within 1m of metalwork (i.e. radiators, water pipes, etc) as this could affect 
the radio range of the device. If required, it may be necessary to space the 
magnet and detector away from the metal surface using a plastic or 
wooden spacer to achieve the necessary radio range. 
 
Troubleshooting 
 
Symptom 
Possible Cause 
Recommendation 
LED cannot be displayed 
Run out of battery  
power 
Replace a new battery 
   
   
   
Check if reverse battery 
polarity 
Refit the battery with 
   
correct polarity 
The detector not working 
Check if mounting 
Reposition its mounting 
   
location is proper 
location 
   
   
Remove the source of 
   
   
interference 
 
 
 
        
 
 
 
Federal Communication Commission Interference Statement 
This equipment has been tested and found to comply with the limits for a Class B 
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to 
provide reasonable protection against harmful interference in a residential 
installation. This equipment generates, uses and can radiate radio frequency 
energy and, if not installed and used in accordance with the instructions, may 
cause 
harmful interference to radio communications. However, there is no guarantee 
that interference will not occur in a particular installation. If this equipment does 
cause harmful interference to radio or television reception, which can be 
determined 
by turning the equipment off and on, the user is encouraged to try to correct the 
interference by one of the following measures: 
Reorient or relocate the receiving antenna. 
- Increase the separation between the equipment and receiver. 
- Connect the equipment into an outlet on a circuit different from that to which the 
receiver is connected. 
- Consult the dealer or an experienced radio/TV technician for help. 
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. 
FCC Caution: Any changes or modifications not expressly approved by the party