Amazon Alexa Wi-Fi Home Security Sensors and Motion Detectors for sale

Ring Alarm 5-Piece Security Kit - White (4K11S7-0EN0)
New (Other) · Ring
(136)
$55.00
or Best Offer
$4.52 shipping
BF +^ W&* ]G wV.?V!|/ E6 F$S p o n s o r e d
2gig E sensors
Brand New · 2gig
$25.00
or Best Offer
$4.57 shipping
+^ Y&6* ] w.Y?U U!U|/ $ 7S p o n s o r e d
Smart Water Leak Sensor Detector APP Alarm WiFi Home Water Leak Detector
Brand New
$11.44
or Best Offer
Free shipping
10 watching
+F^ &H *F ]W RH w.? !|EW /LY $S p o n s o r e d
MOES WiFi Smart Temperature & Humidity Sensor Hygrometer Thermometer APP Remote
Brand New
$13.59 to $42.49
Was: $15.99was - US $15.99
Free shipping
2+U^ &* 2] R Uw.F ?BU!|/ $S p o n s o r e d
2 Pack Ring Alarm Motion Wireless Detector 2nd Gen White 4SP1SZ-0EN0
Brand New · Ring
(34)
$39.95
Free shipping
138 sold
+K^I Z W& OP YD* ] wA.?K!| / $
SimpliSafe Water Sensor Alarm Flood Detection for Gen3 Security System NIB
Brand New · SimpliSafe
(6)
$19.99
Free shipping
Only 1 left!
+C^A 4 &* ]P w V0.? 3!F A|/M $
Set of 2 Ring Alarm Motion Wireless Detector 2nd Gen White 4SP1SZ-0EN0
New (Other) · Ring
(34)
$28.00
Free shipping
74 sold
+3J^ & J* 0 ] wU1.? 7!H|/ A $
Wyze Sense Starter Kit Motion Sensor WHSK1 Home Security System New Opened Box
New (Other) · Wyze
$29.99
or Best Offer
Free shipping
Only 1 left!
+^ K&J U*K F] Kw T.2?! |XV/ $
SimpliSafe Entry Sensor, Security System Accessory ENS306 White, Pack of 6
Brand New · SimpliSafe
(5)
$54.99
Was: $99.99was - US $99.99
Free shipping
Only 2 left
+^ &*95 IN] w.?Q!B| /P D$
( x4) Ring Alarm Contact Sensor (2nd Gen) Wireless Sensor Brand New
Brand New · Ring
$65.00
Free shipping
40 sold
A+6 ^ C&*V ] w.2L?! |21/ $
Moen Smart Leak Detector 1-Pack Works At First Leak O/B No batteries #3596
New (Other) · Moen
(10)
$24.99
Free shipping
+^Z &3 E3* ] w.X?B !|/4M 2 $
Honeywell Sixpira LMD500 Two Way Wireless PIR Motion Sensor White NIB Fast Ship
Brand New · Honeywell
(1)
$29.95
Trending at $49.95
$7.95 shipping
5 watching
1X+ ^1 &* ] w.?!M|/ 4G 2B $
3X NEW Simplisafe MOTION SENSOR White CA001 Brand New
Brand New · SimpliSafe
(4)
$47.50
or Best Offer
Free shipping
3+^ 0& * ]P X Bw.J AB?!| 85 / $
MOES WiFi Smart Wireless Motion Sensor Human Body IR Detector APP Remote Monitor
Brand New
$15.29 to $39.59
Was: $16.99was - US $16.99
Free shipping
R+C^ &* CJ] w DA F.Y EI? !|/ $S p o n s o r e d
SimpliSafe Motion Sensor MS3 (New)
Brand New · SimpliSafe
(9)
$20.00
or Best Offer
$4.84 shipping
B+C^ &*NB L ]C PwD .?6!7 |/ $S p o n s o r e d
Tuya WiFi Window / Door Sensor Remote Control Smart Home Security Alarm Sensor
Brand New · Unbranded
$10.89 to $28.99
Free shipping
+MY^ &6E T* ] wV.?! |0/ 8 $S p o n s o r e d
Wyze Home Monitoring Bundle with Motion, Entry sensors, Keypad, Hub New Open Box
New (Other) · Wyze
(12)
$40.00
Trending at $54.49
Free shipping
+^U 9&* ]J 5w .GI? !|/ V$1
BRAND NEW Honeywell 5800PIR-RES Wireless Passive Infrared Motion Sensor
Brand New · Honeywell
(68)
$24.99
or Best Offer
Trending at $33.46
$3.75 shipping
+J^Y SM 4 &* 4 UF 5]N w.?!|/ $
NEW Vivint Smart Sensor VS-DW1200-345 Smart Door and Window Sensor
Brand New · Vivint
$29.99
Free shipping
278 sold
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Wyze Home Security System (WSHMS) w/ Hub Keypad Motion Sensor Entry Sensor
Official WYZE Manufacturer ✅✅30 Day Warranty✅✅
Pre-Owned · Wyze
(12)
$40.64
Free shipping
K+^B Z &S H*X L ]3 VBw.? !|/ $
Geeni Smart Door and Window Sensors White 2-Pack SEALED NEW
Brand New · Geeni
(4)
$19.99
$6.55 shipping
6E+^ &* ] 6Xw OS.? 8!|/ $W
Ring Contact Sensor for Alarm 2nd Gen 5AT3S2 SKU 4SD1SZ-0EN0 - White
Pre-Owned · Ring
(34)
$10.00
Trending at $12.13
$5.00 shipping
+^ B&S * ] wQ.6 DI? 8F! Q|7 / $
Ring Alarm 5 Piece Kit Wireless Home Security System
New (Other) · Ring
(136)
$58.00
Free shipping
5 watching
O+^L &* ]H Hw. SN ?!UN| O/T $
Set Of (2) Moen Smart Water Leak Detector, Model: 920-004 New In Box
Brand New · Moen
(10)
$55.00
Free shipping
+^YR &* ] wJE. ?4!|/ $T
New ListingBrand New Sealed Eufy Wire Free 5-Piece Home Security Kit - One Stop Solution
Brand New · Eufy
$89.99
or Best Offer
Free shipping
+^ &N* I P] w.6?!| 2I T8/ G$
(2 Pack)Ring Alarm Motion Wireless Detector [2nd Gen] White -NEW-
Brand New · Ring
(34)
$39.95
Free shipping
K+^ &*9 LE] w4.?!U 5|M/ T$
Ring Alarm Motion Detector (2nd gen) Z-Wave - 5AT2S9 (/RT6-22963-5AT2S9-UA)
Pre-Owned · Ring
(1)
$15.99
or Best Offer
Free shipping
114 sold
+HV ^J &*Y LX ] w.?X!Y| /7 $
Mighty Mule Vehicle Detection Wireless Driveway Alarm FM231 OPEN BOX 400 Ft
New (Other) · Mighty Mule
(105)
$55.00
or Best Offer
$13.00 shipping
+TO^ &W* M] w.? !K|/P V $
WiFi Wireless Smart Door Window Sensor Detector Safe Alarm for Alexa Google Home
Brand New · Unbranded
$10.65
or Best Offer
Free shipping
645 sold
+^ K&P* X K] w.?2!A LE| / $S p o n s o r e d
eufy T8990121-4 Security 5-Piece Home Security Kit
Brand New · Eufy
$89.49
Free shipping
14 watching
F+^ &* ]2 FX w.? !9|/6 H $R
New ListingNEW Ring Alarm Motion Detector (2nd Gen) (1-Pack) - White
Brand New · Ring
(34)
$19.99
Free shipping
ZR+^ M &0* ] AO AUw.?!|/ $
Ring Alarm Wireless Z Wave Plus Network Range Extender Outlet 1st Gen
Brand New · Ring
(1)
$13.99
or Best Offer
Free shipping
BE R+^ &5 O* ] W 1wJ.?!| /AR $
Mighty Mule Vehicle Detection Wireless Driveway Alarm FM231 400 Ft
Pre-Owned · Mighty Mule
(105)
$42.46
Was: $49.95was - US $49.95
$8.30 shipping
P+H^ 6 &D *P Q] IKw.? 89!|/ $
Wyze Motion Sensor v2 Model WSMS2
New (Other) · Wyze
(3)
$15.00
Trending at $17.50
Free shipping
+K^ O &* ] w.?8!S| /6 A $7
Aqara Presence Sensor FP2 Kit Apple HomeKit mmWave Home Monitor Open Box
New (Other)
$64.99
$4.71 shipping
+I^Y &* ] Ww.P? 3O 6!|/A 4$
SimpliSafe Home Security System - Glassbreak Sensor GB3 White New
Brand New · SimpliSafe
(1)
$33.95
Free shipping
WI D+^D &7O * ]T Yw .?G!N| / $
Smart Wi-Fi Home Window Door Security Alarm Sensor System Alexa Google Tuya App
Brand New · SmartSecurity
(2)
$11.65
or Best Offer
Free shipping
U1 +^ F&N* ]46 OY w.9?!|R / $
Kidde 60WLDR-W Battery Operated Smart Water Leak Detector & Freeze Alarm w/Wi-Fi
New (Other) · Kidde
(4)
$16.75
Free shipping
Z+4^ V&W * ] wJ.?!|/8 $KW
Tuya Smart WiFi Infrared Detector PIR Motion Sensor Home Security Google Alexa
Brand New · Unbranded
(2)
$13.45
or Best Offer
Free shipping
393 sold
+^ 5N& 0*Z ] wV.?9 MV!|/ $S p o n s o r e d
Smart Water Leak Sensor Detector APP Alarm WiFi Home Water Leak Detector Lot
Brand New · Unbranded
$11.39 to $72.50
Free shipping
+K4^ &*9S 2 E] w.? !|/ 2$NS p o n s o r e d
Philips Hue Secure contact sensor NAM White 1P -FREE SHIPPING
New (Other) · Philips
$31.98
Free shipping
16 watching
QX+^ &5*7 ] w.?!|BA/ $ IQ
NEW Honeywell 5800PIR-RES Wireless Passive Infrared Motion Sensor SEALED
Brand New · Honeywell
(68)
$29.99
Trending at $33.46
$5.35 shipping
+^ B&G *L ] w.V ?N4! W|9 /1 $
Blue by ADT Door & Window Sensors SSH1R0-29 White
New (Other) · ADT
(2)
$12.99
or Best Offer
$5.00 shipping
Only 1 left!
K1 +AL^ 5 &*N IG 1] Uw. ?!|/ $
Lot of 6 Ring Alarm Contact Sensor 2nd Gen Wireless Sensor for Door & Window NEW
Brand New · Ring
$89.95
or Best Offer
Free shipping
+^ H&2 * ] Ww.?!W A|/ $Z
Long Range Solar Wireless Driveway Alarm Outdoor Weather Resistant Motion Sen...
Brand New
(2)
$86.99
Free shipping
Only 1 left!
+^ &* C3 ]0 w.?Z! |3/E $C
Smart Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor Alexa Google Home
Brand New
(1)
$89.99
Free shipping
356 sold
+^ &2* ] I RwC F.9?! Y|U/ $
Brand New Wyze Sense Starter Kit Motion Sensor WHSK1 Home Security System
Brand New · Wyze
(20)
$49.98
or Best Offer
Free shipping
+^U &3 SK * Y] wQ .?D!Z |/M $
Moen Smart Leak Detector (1-pk*) 920-004 (SEALED) (NEW)
Brand New · Moen
(10)
$15.00
$12.00 shipping
0 bids
1d 23h
3+^Q &* ] w.CP? FE!| 7/ 8 G$
GoveeLife Human Presence Sensor, 2.4 GHz Smart mmWave Radar & PIR | H5127
New (Other)
$23.99
Was: $29.99was - US $29.99
Free shipping
+^ &J*U M ]6 2E Fw.?!8 |0K / $
Brand New Honeywell Sixpira LMD500 Wireless PIR Motion Sensor - White
Brand New · Honeywell
(1)
$49.95
or Best Offer
$4.84 shipping
+YF^ &G* 9 ] Cw.A Z?Z S!|I/ $
Wyze Home Monitoring Security System Sense Hub Keypad 2 Entry Motion Sensors V2
New (Other) · Wyze
(12)
$49.99
or Best Offer
Trending at $54.49
Free shipping
4 watching
+W^ &N MA* 5] w.?X! |/ $XK
Ring Alarm Contact Sensor (2nd Gen) Wireless Sensor New In Box
Brand New · Ring
$18.88
Free shipping
8 watching
+O4 A^ &*U 6 ] w.8?!|/ C$
Eve Motion (matter) - Smart Motion Sensor With Light Sensor, Ipx3 Water
Brand New · eve
$29.99
Free shipping
+^ &* ] Ew.?!3 H|/G A$W
Ring Wi-Fi Smart Mailbox Sensor - White
Brand New · Ring
$28.00
Free shipping
16 sold
G4+^ RF&* ] 5w.?K!|/ 6 $
Aqara Temperature and Humidity Sensor Outdoor Cover Case - Buy 1 get 1 Free !!!
Brand New
$10.99
Free shipping
+^E &*K O8] X4 6wD CX.?! |/ $
New ListingADT Self Setup Door / Window Sensor SSH1R White (SSH1R0-29) brand new OEM w2c
Brand New · ADT
$25.00
Free shipping
0+O L^ &* ]I w5.?9!|/ $
Ring Mailbox Sensor White Brand New In Box
Brand New · Ring
$22.95
or Best Offer
Trending at $28.00
$5.00 shipping
+^ &G6* ] w.? EY N!|7/ 1W $
Zigbee Smart Home Alarm Kit Home Automation Hub Door Sensor PIR Motion w/ Alexa
Brand New
$12.98 to $39.88
Free shipping
101 watching
+^7M O&*N ] HFw .A?!W 2|J/ $
1-6Pack Smart Water Leak Sensor Detector APP Alarm WiFi Home Water Leak Detector
Brand New · Unbranded
$11.39 to $45.19
Free shipping
+I9^ &4*Z ] w26.?!|/ $PS p o n s o r e d
Tuya Smart WIFI Infrared Detector Home Security PIR Motion Sensor Alarm US NEW
Brand New · Unbranded
$13.59
or Best Offer
Free shipping
136 sold
+^ 9N &* ] w.?BW 14 !|/ $B0S p o n s o r e d

Amazon Alexa Wi-Fi Home Security Sensors and Motion Detectors

Shop by Category

2,246 Results

Ring Alarm 5-Piece Security Kit - White (4K11S7-0EN0)

2gig E sensors

Smart Water Leak Sensor Detector APP Alarm WiFi Home Water Leak Detector

MOES WiFi Smart Temperature & Humidity Sensor Hygrometer Thermometer APP Remote

2 Pack Ring Alarm Motion Wireless Detector 2nd Gen White 4SP1SZ-0EN0

SimpliSafe Water Sensor Alarm Flood Detection for Gen3 Security System NIB

Set of 2 Ring Alarm Motion Wireless Detector 2nd Gen White 4SP1SZ-0EN0

Wyze Sense Starter Kit Motion Sensor WHSK1 Home Security System New Opened Box

SimpliSafe Entry Sensor, Security System Accessory ENS306 White, Pack of 6

( x4) Ring Alarm Contact Sensor (2nd Gen) Wireless Sensor Brand New

Moen Smart Leak Detector 1-Pack Works At First Leak O/B No batteries #3596

Honeywell Sixpira LMD500 Two Way Wireless PIR Motion Sensor White NIB Fast Ship

3X NEW Simplisafe MOTION SENSOR White CA001 Brand New

MOES WiFi Smart Wireless Motion Sensor Human Body IR Detector APP Remote Monitor

SimpliSafe Motion Sensor MS3 (New)

Tuya WiFi Window / Door Sensor Remote Control Smart Home Security Alarm Sensor

Wyze Home Monitoring Bundle with Motion, Entry sensors, Keypad, Hub New Open Box

BRAND NEW Honeywell 5800PIR-RES Wireless Passive Infrared Motion Sensor

NEW Vivint Smart Sensor VS-DW1200-345 Smart Door and Window Sensor

Wyze Home Security System (WSHMS) w/ Hub Keypad Motion Sensor Entry Sensor

Geeni Smart Door and Window Sensors White 2-Pack SEALED NEW

Ring Contact Sensor for Alarm 2nd Gen 5AT3S2 SKU 4SD1SZ-0EN0 - White

Ring Alarm 5 Piece Kit Wireless Home Security System

Set Of (2) Moen Smart Water Leak Detector, Model: 920-004 New In Box

New ListingBrand New Sealed Eufy Wire Free 5-Piece Home Security Kit - One Stop Solution

(2 Pack)Ring Alarm Motion Wireless Detector [2nd Gen] White -NEW-

Ring Alarm Motion Detector (2nd gen) Z-Wave - 5AT2S9 (/RT6-22963-5AT2S9-UA)

Mighty Mule Vehicle Detection Wireless Driveway Alarm FM231 OPEN BOX 400 Ft

WiFi Wireless Smart Door Window Sensor Detector Safe Alarm for Alexa Google Home

eufy T8990121-4 Security 5-Piece Home Security Kit

New ListingNEW Ring Alarm Motion Detector (2nd Gen) (1-Pack) - White

Ring Alarm Wireless Z Wave Plus Network Range Extender Outlet 1st Gen

Mighty Mule Vehicle Detection Wireless Driveway Alarm FM231 400 Ft

Wyze Motion Sensor v2 Model WSMS2

Aqara Presence Sensor FP2 Kit Apple HomeKit mmWave Home Monitor Open Box

SimpliSafe Home Security System - Glassbreak Sensor GB3 White New

Smart Wi-Fi Home Window Door Security Alarm Sensor System Alexa Google Tuya App

Kidde 60WLDR-W Battery Operated Smart Water Leak Detector & Freeze Alarm w/Wi-Fi

Tuya Smart WiFi Infrared Detector PIR Motion Sensor Home Security Google Alexa

Smart Water Leak Sensor Detector APP Alarm WiFi Home Water Leak Detector Lot

Philips Hue Secure contact sensor NAM White 1P -FREE SHIPPING

NEW Honeywell 5800PIR-RES Wireless Passive Infrared Motion Sensor SEALED

Blue by ADT Door & Window Sensors SSH1R0-29 White

Lot of 6 Ring Alarm Contact Sensor 2nd Gen Wireless Sensor for Door & Window NEW

Long Range Solar Wireless Driveway Alarm Outdoor Weather Resistant Motion Sen...

Smart Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor Alexa Google Home

Brand New Wyze Sense Starter Kit Motion Sensor WHSK1 Home Security System

Moen Smart Leak Detector (1-pk*) 920-004 (SEALED) (NEW)

GoveeLife Human Presence Sensor, 2.4 GHz Smart mmWave Radar & PIR | H5127

Brand New Honeywell Sixpira LMD500 Wireless PIR Motion Sensor - White

Wyze Home Monitoring Security System Sense Hub Keypad 2 Entry Motion Sensors V2

Ring Alarm Contact Sensor (2nd Gen) Wireless Sensor New In Box

Eve Motion (matter) - Smart Motion Sensor With Light Sensor, Ipx3 Water

Ring Wi-Fi Smart Mailbox Sensor - White

Aqara Temperature and Humidity Sensor Outdoor Cover Case - Buy 1 get 1 Free !!!

New ListingADT Self Setup Door / Window Sensor SSH1R White (SSH1R0-29) brand new OEM w2c

Ring Mailbox Sensor White Brand New In Box

Zigbee Smart Home Alarm Kit Home Automation Hub Door Sensor PIR Motion w/ Alexa

1-6Pack Smart Water Leak Sensor Detector APP Alarm WiFi Home Water Leak Detector

Tuya Smart WIFI Infrared Detector Home Security PIR Motion Sensor Alarm US NEW

Best Selling

Honeywell 5800PIRRES Wireless LED Motion Sensor

Ring 4SP1SZ-0EN0 Motion Detector Alarm - White

Simplisafe MOTION SENSOR White (CA001)

SimpliSafe ENS306 Entry Sensor - White, Pack of 6

SimpliSafe Water Sensor WT3 - Security System

SimpliSafe 2nd Gen Motion Sensor Home Security System Model CA001 - NEW

Moen Flo 920-004 Smart Water Leak Detection System

Wyze Home Security System Core Kit with Hub, Keypad, Motion, 2 Entry Sensors and 6 Months of 24/7 Professional Monitoring Included

Top Rated

Honeywell 5800PIRRES Wireless LED Motion Sensor

Ring 4SP1SZ-0EN0 Motion Detector Alarm - White

Govee H5040 Water Detector 3-pack With RF WiFi Gateway

ecobee SmartSensor for Doors and Windows - Pack of 2 (EB-DWSHM2PK-01)

Mighty Mule Wireless Driveway Alarm System

Wyze Home Security System Core Kit with Hub, Keypad, Motion, 2 Entry Sensors and 6 Months of 24/7 Professional Monitoring Included

Solar Alarm Light Wireless PIR Motion Sensor Detector Lamp Outdoor Waterproof