2GIG 345S Passive Infrared Motion Detector FAQs

2GIG PIR motion detector — passive infrared interior motion on 345 MHz with pet-immunity options (standard and encrypted PIR1/ePlus variants). On 2GIG systems, wireless devices are supervised zones on the panel — ...

Overview

2GIG PIR motion detector — passive infrared interior motion on 345 MHz with pet-immunity options (standard and encrypted PIR1/ePlus variants).

On 2GIG systems, wireless devices are supervised zones on the panel — tamper, low battery, and missing signals appear as trouble conditions that may block arming depending on panel programming.

At a Glance

SpecificationDetails
DetectionPassive infrared motion
Wireless345 MHz; ePlus extended range models available
Pet immunityWeight/height limits per model — verify manual
PowerListed battery per SKU
MountingWall mount; avoid HVAC and sunlight

What This Device Does Well

Provides reliable supervised status at the panel and Alarm.com when installed, enrolled, and range-tested correctly.

Before You Service or Replace One

  • Sensor SKU — standard 345 MHz vs eSeries encrypted vs ePlus 900 MHz.
  • Panel online — resolve panel AC/cell trouble before blaming sensor.
  • Range — repeaters (RPTR1) or transceivers (XCVR2) for distant zones.
  • Battery type — use listed cell; replace all batteries in multi-cell devices.
  • Tamper — cover fully closed before declaring hardware fault.

Official Sources

Use official 2GIG PDFs and install guides for exact wiring, enrollment, and firmware — specifications vary by SKU and region.

FAQs

Why does my zone show trouble?

Most common: low battery, tamper open, out of range, or wrong sensor type for the panel receiver (345 MHz vs ePlus 900 MHz).

How do I replace a sensor?

Delete old zone in installer programming, enroll replacement using Learn mode, and test walk test at final location.

Will Alarm.com show this device?

When the panel has active interactive service, enrolled zones appear in the Alarm.com app with status matching the panel.

Where is official documentation?

Primary reference: 2GIG PIR install and sensitivity guide

How do I test after installation?

Use panel walk test, zone status, and (if monitored) central station test per dealer procedure.

Can I mix 345 MHz and ePlus sensors?

ePlus 900 MHz sensors require XCVR2 transceiver hardware — they do not enroll on the standard 345 MHz receiver alone.

Why does my zone show trouble?

Most common: low battery, tamper open, out of range, or wrong sensor type for the panel receiver (345 MHz vs ePlus 900 MHz).

How do I replace a sensor?

Delete old zone in installer programming, enroll replacement using Learn mode, and test walk test at final location.

Will Alarm.com show this device?

When the panel has active interactive service, enrolled zones appear in the Alarm.com app with status matching the panel.

Where is official documentation?
How do I test after installation?

Use panel walk test, zone status, and (if monitored) central station test per dealer procedure.

Can I mix 345 MHz and ePlus sensors?

ePlus 900 MHz sensors require XCVR2 transceiver hardware — they do not enroll on the standard 345 MHz receiver alone.