< All Topics

Qolsys Sensors – Replacement Battery Guide

Below is a chart of the various sensors used with Qolsys systems (predominantly IQ & IQ2 series alarm systems). Included is the Sensor Type (primary use), Part #/Description (mostly used by dealers), Voltage, Type (of battery used), Quantity (needed), and Picture (of the sensor; can be clicked to enlarge image if available). While some battery types may appear identical (typically the coin type batteries), it is important to use the listed type of battery to ensure the sensor works correctly and is not damaged.

Sensor TypePart # / DescriptionVoltageTypeQuantityPicture
Door / WindowQS1132-840 — IQ Micro Door / Window Sensor3vCR16321
Door / WindowQS1135-840 — IQ Mini Door / Window Sensor3vCR20322
Door / WindowQS1113-840 — IQ Door / Window Sensor3vCR21
Door / WindowQS1134-840 — IQ Recessed Door / Window Sensor3vCR21
Door / WindowQS1137-840 — IQ Mini Extended door/window sensor with aux input3vCR20322
MotionQS1231-840 — IQ Pet Immune Motion1.5vAAA2
TiltQS1131-840 — IQ Tilt Sensor (Overhead Doors)3vCR20322
GlassbreakQS1431-840 — IQ Glassbreak Sensor3vCR123A2
ShockQS1138-840 — IQ Shock Sensor3vCR123A1
FloodQS5536-840 — IQ Flood Sensor3vCR20322
TemperatureQS5535-840 — IQ Low / High Temperature Sensor3vCR20322
DoorbellQS1119-840 — IQ Doorbell3vCR20322
SmokeQS5110-840 — IQ Smoke / Heat Detector1.5vAAA3
Carbon MonoxideQS5210-840 — IQ Carbon Monoxide Detector3vCR123A1
Image SensorQZ8103-840 — IQ Image Sensor1.5vLITHIUM AA2
Image SensorQZ8100-840 — IQ Image Sensor1.5vLITHIUM AA2
KeyfobQS1331-840 — IQ 4-Button Keyfob3vCR20321
PendantQS1332-840 — IQ Emergency Pendant3vCR20321
PendantQS-6110-P01 — IQ Emergency PendantCannot Replace Battery
Fall PendantQS1314-840 — IQ Fall Pendant3vCR24771
Scroll to Top