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Frequently Asked Questions
  • Alarm Related
  • TV / HDTV Related
  • Changing Alarm Batteries
    • Alarm Panel Battery
    • Infrared Motion Detector
    • DUAL TEC Motion Sensor
    • 5804 Battery
    • Door/Window Transmitter
    • Recessed Door Transmitter
    • Door / Window Contact
    • Temperature & Flood
    • Remote Wireless Keypad
    • Bidirectional Fixed-Word
    • Glass Break Detector
Home Alarm Remote Control

Test Your Internet Speed
Battery Replacement Instructions
Door / Window Contact Transmitter
Ademco 5820

1. If the Go/No Go test was ok, remove the transmitter's cover by inserting the flat blade of a small screwdriver into the opening slot at one end of the unit as shown in Figure 1, and separating the two halves.





2. Observe correct polarity and insert the battery provided into the battery retainer clips as shown in Figure 2.





Replace battery only with same or equivalent type. Dispose of used batteries according to the battery manufacturer’s instruction.
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