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Alarm.com System Enhancement Module (SEM300)
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0
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60
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September 16, 2025
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Cellular communicator
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13
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48
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September 12, 2025
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Need an alarm and have an old one
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3
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53
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August 31, 2025
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Qolsis Panel 4 wants to add a mystery sensor
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5
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59
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August 26, 2025
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Add new sensors to Vista 20P
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1
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23
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August 8, 2025
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Modem-panel communication error with newly installed SEM300
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25
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122
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July 31, 2025
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Alarm.com system enhancement module for Vista20p
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6
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56
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June 16, 2025
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Heat detector for garage
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18
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1569
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May 14, 2025
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ADT Safewatch -> Surety: ADC SEM300 communication issues
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5
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107
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May 5, 2025
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Migrating from Ademco Vista 20P
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10
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79
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April 25, 2025
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ADC-SEM-300 +12V wiring question
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7
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53
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March 11, 2025
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Problems with ADC SEM 300 installation
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19
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137
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March 6, 2025
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Vista 20p added DT8050v wired motion, now keypad shows fault when setting AWAY
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22
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308
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February 28, 2025
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Disarm Away entry delay
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6
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74
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February 18, 2025
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Communicator for Vista 20P
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4
|
166
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February 8, 2025
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Water Flow sensor on Qolsys panel
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9
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1692
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December 19, 2024
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Honeywell Thermostat not working properly
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2
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101
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December 16, 2024
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Convert old existing hard-wired system to Surety
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19
|
228
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December 9, 2024
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Honeywell 5834-4 IQ4 Panel Arm Away
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1
|
33
|
December 6, 2024
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Looking for a replacement to Ademco Vista-15CN
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2
|
24
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November 26, 2024
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Alarm.com app "Arm Stay" automatically sets to "Night Stay" at night?
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18
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382
|
October 25, 2024
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Adding wireless window sensor to Vista System
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4
|
238
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October 21, 2024
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Stuck converting ADT VISTA to Suretly ADC [SOLVED]
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6
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65
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October 20, 2024
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6150 to 6160 Fault
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1
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46
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October 4, 2024
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What new hardware do I require?
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1
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51
|
September 26, 2024
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Honeywell Panel Beeping
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10
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480
|
September 9, 2024
|
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Honeywell/Resideo 5870API Asset Protection Sensor Compatibility With Qolsys IQ Panel 4?
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|
15
|
163
|
August 25, 2024
|
|
Moved Into New House With Possibly 3 Existing Alarm Systems
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|
7
|
707
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July 27, 2024
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Manually program a sensor to a SEM-Honeywell/ADEMCO Vista
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0
|
498
|
July 17, 2024
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Honeywell/ADEMCO Vista System Enhancement Module (SEM) Compatibility and Setup Guide
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|
2
|
7542
|
March 3, 2020
|