Ring Alarm Contact Sensor (2nd Gen)

Compare price from $14.00 ~ $99.99

Compare Buying Options

Sort by Lowest Price	Item price	Delivery
PC Richard & Son Ring - Alarm Contact Sensor (2nd Gen) (2-Pack) White, Smart Home Security Systems \| P.C. Richard & Son \| 4SD2SZ-0EN0	$39.99	Delivery date & cost shown at checkout

Wellbots Ring Alarm Contact Sensor 6 Pack	$89.99	Delivery date & cost shown at checkout

Doorbell Ninja Ring 2 Pack Alarm Window/Door Sensor	$39.99	Delivery date & cost shown at checkout

Ideal True Value Home Center The Ring Alarm Contact Sensor V2 expands your Ring Alarm and adds an e	$26.94	Delivery date & cost shown at checkout

Silarius RING MOTION2PKV2 ALARM 2.0 MOTION SENSOR 2 PACK	$89.99	Delivery date & cost shown at checkout

Bonanza Ring Alarm Wireless Contact Sensor 2nd Gen for Door & Window (2-Pack) - New	$39.99	Delivery date & cost shown at checkout

Bonanza Ring Alarm Wireless Contact Sensor 2nd Gen for Door & Window (2-Pack) Ships Fast	$38.81	Delivery date & cost shown at checkout

Abt Electronics & Appliances Ring White Ring Contact Sensor B07ZB2QLC2 at ABT	$19.00	Delivery date & cost shown at checkout

Enervee CA Ring - Alarm Contact Sensor (2nd Gen) (1-Pack) - White	$19.99	Delivery date & cost shown at checkout

Enervee CA Ring - Alarm Contact Sensor (2nd Gen) (2-Pack) - White	$39.99	Delivery date & cost shown at checkout

Enervee CA Ring - Alarm Contact Sensor (2nd Gen) (6-Pack) - White	$99.99	Delivery date & cost shown at checkout

Techable Ring Alarm Contact Sensor - 2nd Generation (New)	$19.95	Delivery date & cost shown at checkout

Newegg.com Ring Alarm Contact Sensor (2nd Gen) (2-Pack) White Model 4SD2SZ-0EN0	$44.99	Delivery date & cost shown at checkout

Newegg.com Ring RINGALCNTV2 Alarm Contact Sensor - Single Pack	$19.95	Delivery date & cost shown at checkout

Network Hardwares Ring B07ZB2QLC2 Door Sensor, Surface-mountable, White	$42.95	Delivery date & cost shown at checkout

a4c.com Ring Alarm Contact Sensor - 2nd Generation (New)	$19.95	Delivery date & cost shown at checkout

Hardware & Moreee Ring Alarm Sensor V2	$29.38	Delivery date & cost shown at checkout

Mercari Ring Alarm Contact Sensor (2nd Gen) 1-Pack - White - New Electronics \| Color: White	$18.00	Delivery date & cost shown at checkout

Mercari Ring Alarm Contact Sensor (2nd Gen) 1-Pack - White Open Box Never Used - New Electronics	$14.00	Delivery date & cost shown at checkout

Mercari Ring Contact Sensor - New Electronics \| Color: White	$20.00	Delivery date & cost shown at checkout

Mercari Ring Contact Sensor 2 Pack - New Electronics \| Color: White	$30.00	Delivery date & cost shown at checkout

Mercari Ring Contact Sensor 2-Pack (2nd Generation) - New Electronics	$30.00	Delivery date & cost shown at checkout

Mercari Ring Contact Sensor Wireless Sensor For Ring Alarm 2 Pack - New Electronics \| Color: White \| Size: m	$40.41	Delivery date & cost shown at checkout

Arbor Ring Alarm Door/Window Contact Sensor (2-Pack) (2nd Gen)	$37.59	Delivery date & cost shown at checkout

Arbor Ring Alarm Door/Window Contact Sensor (2nd Gen)	$18.79	Delivery date & cost shown at checkout

Amazon.com Ring Alarm Contact Sensor (2nd Gen)	$19.99	Delivery date & cost shown at checkout

Amazon.com Ring Alarm Contact Sensor 2-pack (2nd Gen)	$39.99	Delivery date & cost shown at checkout

Amazon.com Ring Alarm Contact Sensor 6-pack (2nd Gen)	$89.99	Delivery date & cost shown at checkout

Home Depot Alarm Door/Window Contact Sensor (2-Pack) (2nd Gen)	$39.99	Delivery date & cost shown at checkout

Swiss Colony Ring 2-Pack Contact Sensors, White	$64.79	Delivery date & cost shown at checkout

Southern Electronics Ring Alarm Contact Sensor	$19.99	Delivery date & cost shown at checkout

Southern Electronics Ring Contact Sensor, 2 Pack	$39.98	Delivery date & cost shown at checkout

Southern Electronics Ring Contact Sensor, 6 Pack	$99.99	Delivery date & cost shown at checkout

Groupon.com Ring Alarm Door or Window Contact Sensor #4SD1SZ-0EN0 in White	$14.95	Delivery date & cost shown at checkout

PickYourPlum Ring Alarm Window and Door Contact Sensor (2nd Gen)	$18.99	Delivery date & cost shown at checkout

Montgomery Ward Ring 2-Pack Contact Sensors, White	$64.79	Delivery date & cost shown at checkout

Ring 6-Pack Alarm Window and Door Contact Sensor 2nd Generation	$99.99	Delivery date & cost shown at checkout

Ring Ring Alarm Window and Door Contact Sensor (2nd Gen) 2-Pack in White	$39.98	Delivery date & cost shown at checkout

Walmart Ring Alarm Contact Sensor (2nd Gen) 1-Pack - White	$19.95	Delivery date & cost shown at checkout

Target Ring Alarm Door and Window Sensor - 6pk	$99.99	Delivery date & cost shown at checkout

DK Hardware Ring Alarm Contact Sensor V2 4SD1SZ-0EN0	$38.79	Delivery date & cost shown at checkout

Crutchfield Ring Alarm Contact Sensor (2nd Generation) Alerts you when a door or window opens - 1-pack	$19.00	Delivery date & cost shown at checkout

OnTech Ring Alarm Contact Sensor- 2 Pack (2nd Gen)	$39.99	Delivery date & cost shown at checkout

39.99
PC Richard & Son
Ring - Alarm Contact Sensor (2nd Gen) (2-Pack) White, Smart Home Security Systems | P.C. Richard & Son | 4SD2SZ-0EN0
Delivery date & cost shown at checkout
89.99
Wellbots
Ring Alarm Contact Sensor 6 Pack
Delivery date & cost shown at checkout
39.99
Doorbell Ninja
Ring 2 Pack Alarm Window/Door Sensor
Delivery date & cost shown at checkout
26.94
Ideal True Value Home Center
The Ring Alarm Contact Sensor V2 expands your Ring Alarm and adds an e
Delivery date & cost shown at checkout
89.99
Silarius
RING MOTION2PKV2 ALARM 2.0 MOTION SENSOR 2 PACK
Delivery date & cost shown at checkout
39.99
Bonanza
Ring Alarm Wireless Contact Sensor 2nd Gen for Door & Window (2-Pack) - New
Delivery date & cost shown at checkout
38.81
Bonanza
Ring Alarm Wireless Contact Sensor 2nd Gen for Door & Window (2-Pack) Ships Fast
Delivery date & cost shown at checkout
19.00
Abt Electronics & Appliances
Ring White Ring Contact Sensor B07ZB2QLC2 at ABT
Delivery date & cost shown at checkout
19.99
Enervee CA
Ring - Alarm Contact Sensor (2nd Gen) (1-Pack) - White
Delivery date & cost shown at checkout
39.99
Enervee CA
Ring - Alarm Contact Sensor (2nd Gen) (2-Pack) - White
Delivery date & cost shown at checkout
99.99
Enervee CA
Ring - Alarm Contact Sensor (2nd Gen) (6-Pack) - White
Delivery date & cost shown at checkout
19.95
Techable
Ring Alarm Contact Sensor - 2nd Generation (New)
Delivery date & cost shown at checkout
44.99
Newegg.com
Ring Alarm Contact Sensor (2nd Gen) (2-Pack) White Model 4SD2SZ-0EN0
Delivery date & cost shown at checkout
19.95
Newegg.com
Ring RINGALCNTV2 Alarm Contact Sensor - Single Pack
Delivery date & cost shown at checkout
42.95
Network Hardwares
Ring B07ZB2QLC2 Door Sensor, Surface-mountable, White
Delivery date & cost shown at checkout
19.95
a4c.com
Ring Alarm Contact Sensor - 2nd Generation (New)
Delivery date & cost shown at checkout
29.38
Hardware & Moreee
Ring Alarm Sensor V2
Delivery date & cost shown at checkout
18.00
Mercari
Ring Alarm Contact Sensor (2nd Gen) 1-Pack - White - New Electronics | Color: White
Delivery date & cost shown at checkout
14.00
Mercari
Ring Alarm Contact Sensor (2nd Gen) 1-Pack - White Open Box Never Used - New Electronics
Delivery date & cost shown at checkout
20.00
Mercari
Ring Contact Sensor - New Electronics | Color: White
Delivery date & cost shown at checkout
30.00
Mercari
Ring Contact Sensor 2 Pack - New Electronics | Color: White
Delivery date & cost shown at checkout
30.00
Mercari
Ring Contact Sensor 2-Pack (2nd Generation) - New Electronics
Delivery date & cost shown at checkout
40.41
Mercari
Ring Contact Sensor Wireless Sensor For Ring Alarm 2 Pack - New Electronics | Color: White | Size: m
Delivery date & cost shown at checkout
37.59
Arbor
Ring Alarm Door/Window Contact Sensor (2-Pack) (2nd Gen)
Delivery date & cost shown at checkout
18.79
Arbor
Ring Alarm Door/Window Contact Sensor (2nd Gen)
Delivery date & cost shown at checkout
19.99
Amazon.com
Ring Alarm Contact Sensor (2nd Gen)
Delivery date & cost shown at checkout
39.99
Amazon.com
Ring Alarm Contact Sensor 2-pack (2nd Gen)
Delivery date & cost shown at checkout
89.99
Amazon.com
Ring Alarm Contact Sensor 6-pack (2nd Gen)
Delivery date & cost shown at checkout
39.99
Home Depot
Alarm Door/Window Contact Sensor (2-Pack) (2nd Gen)
Delivery date & cost shown at checkout
64.79
Swiss Colony
Ring 2-Pack Contact Sensors, White
Delivery date & cost shown at checkout
19.99
Southern Electronics
Ring Alarm Contact Sensor
Delivery date & cost shown at checkout
39.98
Southern Electronics
Ring Contact Sensor, 2 Pack
Delivery date & cost shown at checkout
99.99
Southern Electronics
Ring Contact Sensor, 6 Pack
Delivery date & cost shown at checkout
14.95
Groupon.com
Ring Alarm Door or Window Contact Sensor #4SD1SZ-0EN0 in White
Delivery date & cost shown at checkout
18.99
PickYourPlum
Ring Alarm Window and Door Contact Sensor (2nd Gen)
Delivery date & cost shown at checkout
64.79
Montgomery Ward
Ring 2-Pack Contact Sensors, White
Delivery date & cost shown at checkout
99.99
Ring
6-Pack Alarm Window and Door Contact Sensor 2nd Generation
Delivery date & cost shown at checkout
39.98
Ring
Ring Alarm Window and Door Contact Sensor (2nd Gen) 2-Pack in White
Delivery date & cost shown at checkout
19.95
Walmart
Ring Alarm Contact Sensor (2nd Gen) 1-Pack - White
Delivery date & cost shown at checkout
99.99
Target
Ring Alarm Door and Window Sensor - 6pk
Delivery date & cost shown at checkout
38.79
DK Hardware
Ring Alarm Contact Sensor V2 4SD1SZ-0EN0
Delivery date & cost shown at checkout
19.00
Crutchfield
Ring Alarm Contact Sensor (2nd Generation) Alerts you when a door or window opens - 1-pack
Delivery date & cost shown at checkout
39.99
OnTech
Ring Alarm Contact Sensor- 2 Pack (2nd Gen)
Delivery date & cost shown at checkout

Product Details

Get instant mobile alerts when doors and windows open in your home.

Now smaller to enable increased placement options.

Easy installation with no tools required.

See more. Know more. Protect more. - Record 24/7 on your eligible cameras, scroll back in time to rewatch what you missed, get alerts for people and package, and so much more with an compatible Ring Home subscription (sold separately).

Includes two 3V CR2032 batteries.

Requires the Ring Alarm Base Station.

Best Review

Customers find the product easy to install and connect to their existing Ring system. They are satisfied with the security and size of the device. However, opinions vary on sensor quality, battery life, and value for money.AI-generated from the text of customer reviews

Popular Products

Toysmith Tech Gear Multi Voice Changer, Amplifies Voice With 8 Different Voice Effects, For Boys & Girls Ages 5+, Colors vary

$15.12

Compare at 26 stores

Newhouse Hardware Two Note Electric Door Bell Chime Kit with 16V/10 VA Transformer & Surface Mount Lighted Push Buttons, White

$23.16

Compare at 8 stores

Noisy Dinosaurs: Includes Six Sounds! (My First)

$9.11

Compare at 43 stores

First Alert SMI100, Battery-Operated Smoke Alarm, 1-Pack

$16.98

Compare at 30 stores

Vevor 200W Police Siren PA System Car Warning Alarm Vehicle 7 Sound Loud Warning Alarm Kit MIC System Emergency Fire Siren PA Speaker : Electronics

$59.99

Compare at 10 stores

Ring Alarm Contact Sensor (2nd Gen)

Compare Buying Options