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Ring Window and Door Contact Sensor (2nd gen)

Device profile · Specifications & compatibility

Ring Window and Door Contact Sensor (2nd gen)

Ring · Door & Window Sensors · Model 5AT3S2

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  • Ring Window and Door Contact Sensor (2nd gen) lists Tamper Alerts; Home Assistant; Battery Life: 3 years.
  • Check the event that triggers the alert and how the notification reaches the controller.

Browse more from Ring or explore all door & window sensors in our catalog.

Recorded year
2021
Recorded warranty
1 year
Weight
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The details that shape your choice

Ring Window and Door Contact Sensor (2nd gen) Quick Features

Start with these specifications, then check the full details and conditions below.

All specifications →
Tamper Alerts
Yes
View details & conditions →
Thread
No
View details →
Door Window Alerts
Yes
View details →
Z Wave
Z-Wave Hub required
View details →
Alexa
Yes
View details →
Home Assistant
Yes
View details →

Make the differences clear

Which device fits your setup?

Choose another model to compare features, connections and requirements side by side.

From specification to decision

Ring Window and Door Contact Sensor (2nd gen): Capabilities And Limitations

Based on listed specifications, not hands-on testing. Manufacturer sources are linked where checked.

What it offers

  • Tamper alerts are recorded as an additional monitoring event. Check the event that triggers the alert and how the notification reaches the controller. Ring documents resolving a tampered Contact Sensor (1st and 2nd Gens): the tamper switch sounds the Alarm siren and shows the Tampered indicator in the app

    View Tamper Alerts details →

  • A Home Assistant integration is listed, providing an integration path to verify for the exact model. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities.

    View Home Assistant details →

Still needs verification

Confirm these details if they matter to your setup.

About our sources and comparison method →

Questions About Ring Window and Door Contact Sensor (2nd gen)

Does Ring Window and Door Contact Sensor (2nd gen) report tamper alerts?

Yes, according to the listed specifications. Check the event that triggers the alert and how the notification reaches the controller. Ring documents resolving a tampered Contact Sensor (1st and 2nd Gens): the tamper switch sounds the Alarm siren and shows the Tampered indicator in the app

View Tamper Alerts specifications →

Does Ring Window and Door Contact Sensor (2nd gen) support Thread connectivity?

No, according to the listed specifications. Thread connectivity alone does not establish Matter support or a border-router role. Check those requirements separately.

View Thread specifications →

Does Ring Window and Door Contact Sensor (2nd gen) support Matter?

No, according to the listed specifications. Verify the exact device type, firmware and features exposed in your chosen platform. Matter support is not proof of feature parity.

View Matter specifications →

Does Ring Window and Door Contact Sensor (2nd gen) work with Home Assistant?

Yes, according to the listed specifications. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities.

View Home Assistant specifications →

Does Ring Window and Door Contact Sensor (2nd gen) work with Apple Home?

No, according to the listed specifications. Check the model, firmware, exposed controls and any additional hardware requirements.

View Apple Home specifications →

Explore the full picture

Ring Window and Door Contact Sensor (2nd gen) Specifications

Recorded catalog values. Expand notes for qualifications; unknown values are not treated as missing features.

0 of 30 fields matched to manufacturer documentation. Source checks apply only to the named model and stated scope. Other fields remain catalog data. How we verify specifications →

30 of 30 specifications · 6 sections

Alerts5 fields
Alerts specifications
Door Window AlertsYes
Motion AlertsNo
Temperature AlertsNo
Tamper AlertsYes
Details & conditions

Ring documents resolving a tampered Contact Sensor (1st and 2nd Gens): the tamper switch sounds the Alarm siren and shows the Tampered indicator in the app

Low Battery AlertsNot recorded
Connectivity7 fields
Connectivity specifications
2.4 GHz Wi-FiNo
5 GHz Wi-FiNo
BluetoothNo
Z WaveZ-Wave Hub required
ZigbeeNo
ThreadNo
OtherNo
Integrations6 fields
Integrations specifications
Google HomeNo
AlexaYes
Apple HomeNo
SmartThingsNo
Home AssistantYes
MatterNo
Features5 fields
Features specifications
Minimum Detection DistanceNot recorded
SensitivityNot recorded
AutomationsNot recorded
History RecordsNot recorded
OtaNot recorded
Power2 fields
Power specifications
Battery Type2x CR2032
Battery Life3 years
Sensors5 fields
Sensors specifications
Door WindowYes
LightNo
MotionNo
OccupancyNo
TemperatureNo
Category ComparisonSee how these fields vary across door & window sensorsReading SpecificationsCheck units, conditions and specification limits

How this device compares

Ring Window and Door Contact Sensor (2nd gen) vs Other Similar Models

Statistical context from 28 door & window sensors in this catalog. These figures describe our recorded data, not independent measurements.

Recorded feature coverage

Home Assistant: 25 of 26 known answers are Yes

Integrations: 96% among explicit Yes/No answers; 2 of 28 devices have no resolved answer. Check the specifications for this model’s conditions.

Recorded feature coverage

Door Window: 28 of 28 known answers are Yes

Sensors: 100% among explicit Yes/No answers; 0 of 28 devices have no resolved answer. Check the specifications for this model’s conditions.

Brand representation in this directory

2 of 28 models are from Ring

Counts door & window sensors listed here, not sales or market share. Catalog inclusion does not imply a recommendation.

How These Figures Are CalculatedLearn about our catalog statistics methodology

What Should You Verify Before Buying Ring Window and Door Contact Sensor (2nd gen)?

These checks describe door & window sensors requirements. Confirm each one against the exact model’s current manufacturer documentation and your installation.

  1. Measure the gap and mounting space on the frame.
  2. Check battery type and low-battery reporting.
  3. Verify which hub or alarm system accepts the sensor.
  4. Test the automation behavior for open, closed and offline states.
Verify compatibility beyond a protocol label →Check accounts, accessories and installation requirements →Check update support and data deletion before choosing →

Side-by-side specification comparison

Compare Ring Window and Door Contact Sensor (2nd gen) vs Similar Door & Window Sensors

See how Ring Window and Door Contact Sensor (2nd gen) stacks up against other door & window sensors in this catalog. Compare specifications, compatibility and pricing.

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Catalog specifications have not all been independently checked against manufacturer sources. Read our data and evidence methodology.