试用视觉搜索
使用图片进行搜索,而不限于文本
你提供的照片可能用于改善必应图片处理服务。
隐私策略
|
使用条款
在此处拖动一张或多张图像或
浏览
在此处放置图像
或
粘贴图像或 URL
拍照
单击示例图片试一试
了解更多
要使用可视化搜索,请在浏览器中启用相机
English
全部
图片
灵感
创建
集合
视频
地图
资讯
购物
更多
航班
旅游
酒店
房地产
笔记本
自动播放所有 GIF
在这里更改自动播放及其他图像设置
自动播放所有 GIF
拨动开关以打开
自动播放 GIF
图片尺寸
全部
小
中
大
特大
至少... *
自定义宽度
x
自定义高度
像素
请为宽度和高度输入一个数字
颜色
全部
彩色
黑白
类型
全部
照片
插图
素描
动画 GIF
透明
版式
全部
方形
横版
竖版
人物
全部
脸部特写
半身像
日期
全部
过去 24 小时
过去一周
过去一个月
去年
授权
全部
所有创作共用
公共领域
免费分享和使用
在商业上免费分享和使用
免费修改、分享和使用
在商业上免费修改、分享和使用
详细了解
重置
安全搜索:
中等
严格
中等(默认)
关闭
筛选器
购买 Cooper 24V Motion Sensor
赞助
$28.95
Nuvo 76/500 Add On Motion Sensor, White
Global Industrial
$28.95
Nuvo 76/500 Add On Motion Sensor, White
Global Industrial
$35.00
Cooper Wiring Devices Os310u-V Ivory Motion Occupancy Sensor Wall Switch
Lite Store USA
$35.00
Cooper Wiring Devices Os310u-V Ivory Motion Occupancy Sensor Wall Switch
Lite Store USA
$90.95
Lithonia CMR 10 Extended Range 360 Deg. Sensor-Ceiling Mount Line Voltage Passive Infrared (Pir)
Global Industrial
$90.95
Lithonia CMR 10 Extended Range 360 Deg. Sensor-Ceiling Mount Line Voltage Passive Infrared (Pir)
Global Industrial
$130.00
BOSCH DS9370 - Security & Motion Detectors Supplies
Radwell.com
2
$130.00
BOSCH DS9370 - Security & Motion Detectors Supplies
Radwell.com
$113.00
TYCO PG9914 - Security & Motion Detectors Supplies
Radwell.com
$113.00
TYCO PG9914 - Security & Motion Detectors Supplies
Radwell.com
$202.00
COOPER OAC-DT-1000-R - Lighting & Lighting Motion Detector Supplies
Radwell.com
$202.00
COOPER OAC-DT-1000-R - Lighting & Lighting Motion Detector Supplies
Radwell.com
$137.00
SENSOR SWITCH WV16RP - Security & Motion Detectors Supplies
Radwell.com
$137.00
SENSOR SWITCH WV16RP - Security & Motion Detectors Supplies
Radwell.com
$32.74
RAB SPIR-S PIR Motion Sensor For G2 HID Lamps
Pro Lighting
$32.74
RAB SPIR-S PIR Motion Sensor For G2 HID Lamps
Pro Lighting
$12.99
Mini PIR Motion Sensor Switch With Built In Timer - 12-24 VDC - 6 Amps - Mini PIR Switch
Super Bright LEDs
$12.99
Mini PIR Motion Sensor Switch With Built In Timer - 12-24 VDC - 6 Amps - Mini PIR Switch
Super Bright LEDs
$155.50
RAB STL200/240 Stealth Outdoor Motion Sensor - 200° Detection - 240V - Bronze
Pro Lighting
$155.50
RAB STL200/240 Stealth Outdoor Motion Sensor - 200° Detection - 240V - Bronze
Pro Lighting
$78.35
BOSCH SECURITY VIDEO DS150I Motion Sensor (NA)
Amazon.com
38
Free shipping
$78.35
BOSCH SECURITY VIDEO DS150I Motion Sensor (NA)
Amazon.com
$110.00
Wattstopper CI-24-1 PIR Ceiling Occupancy Sensor 24VDC/AC | Buyrite Electric BY BUYRITE ELECTRIC
BuyRite Electric
$110.00
Wattstopper CI-24-1 PIR Ceiling Occupancy Sensor 24VDC/AC | Buyrite Electric BY BUYRITE ELECTRIC
BuyRite Electric
$105.00
SENSOR SWITCH LWS-2P - Lighting & Lighting Motion Detector Supplies
Radwell.com
$105.00
SENSOR SWITCH LWS-2P - Lighting & Lighting Motion Detector Supplies
Radwell.com
$73.00
RAB GT500 Gotcha! Outdoor Motion Sensor - 110O Detection - 120-277V - Black
Pro Lighting
2
$73.00
RAB GT500 Gotcha! Outdoor Motion Sensor - 110O Detection - 120-277V - Black
Pro Lighting
$34.99
20W Integrated LED Motion Sensor Light - 1,800 Lumens - Adjustable 2 Head Security Light - 4000K - Natural White With Bronze Finish
Super Bright LEDs
$34.99
20W Integrated LED Motion Sensor Light - 1,800 Lumens - Adjustable 2 Head Security Light - 4000K - Natural White With Bronze Finish
Super Bright LEDs
$48.99
PIR Motion Sensor For 53W LED 4 Linear Light Fixture - Remote Included
Super Bright LEDs
$48.99
PIR Motion Sensor For 53W LED 4 Linear Light Fixture - Remote Included
Super Bright LEDs
$20.92
Cooper Lighting LLC Outdoor Motion Sensor In White | Wayfair
Wayfair
$20.92
Cooper Lighting LLC Outdoor Motion Sensor In White | Wayfair
Wayfair
$37.99
0-10V PIR Motion Sensor - Fixture Mount - 360 Detection - 120-277 VAC
Super Bright LEDs
$37.99
0-10V PIR Motion Sensor - Fixture Mount - 360 Detection - 120-277 VAC
Super Bright LEDs
$73.00
RAB GT500W Gotcha! Outdoor Motion Sensor - 110O Detection - 120-277V - White
Pro Lighting
40
$73.00
RAB GT500W Gotcha! Outdoor Motion Sensor - 110O Detection - 120-277V - White
Pro Lighting
$168.03
Wattstopper PIR Ceiling Occupancy Sensor 2000 Square Foot 24VDC PIR Low Voltage USA (CX-100-U)
Lighting Supply
$168.03
Wattstopper PIR Ceiling Occupancy Sensor 2000 Square Foot 24VDC PIR Low Voltage USA (CX-100-U)
Lighting Supply
$177.86
Wattstopper Dual Technology Occupancy Sensor 24VDC Center Mount 360 Degree 40 Khz (DT-305)
Lighting Supply
1
$177.86
Wattstopper Dual Technology Occupancy Sensor 24VDC Center Mount 360 Degree 40 Khz (DT-305)
Lighting Supply
$39.99
Maxlite C-Max Control Node - PIR Motion Sensor And Photocell - Dimmable - White
Super Bright LEDs
$39.99
Maxlite C-Max Control Node - PIR Motion Sensor And Photocell - Dimmable - White
Super Bright LEDs
$176.25
OAC-DT-1000-R - Cooper Lighting Motion Detector Lighting (New)
Electrical.com
$176.25
OAC-DT-1000-R - Cooper Lighting Motion Detector Lighting (New)
Electrical.com
$71.99
Cooper Osc20-Mww Occupancy Sensor 24V Motion Sensor.
eBay
$71.99
Cooper Osc20-Mww Occupancy Sensor 24V Motion Sensor.
eBay
$97.83
Wattstopper PIR Ceiling Occupancy Sensor 24 VDC/AC PIR Low Voltage Isolated Relay (CI-24-1)
Lighting Supply
$97.83
Wattstopper PIR Ceiling Occupancy Sensor 24 VDC/AC PIR Low Voltage Isolated Relay (CI-24-1)
Lighting Supply
$825.00
DANAHER MOTION RF17E01G1 - Sensors & Switches & Load Cell Supplies
Radwell.com
$825.00
DANAHER MOTION RF17E01G1 - Sensors & Switches & Load Cell Supplies
Radwell.com
$26.99
Maxxima Ceiling Mount 360 Degree PIR Occupancy Sensor - Hard-Wired Motion Sensor, LED Compatible, Commercial Or Residential Automatic Sensing
Amazon.com
283
$26.99
Maxxima Ceiling Mount 360 Degree PIR Occupancy Sensor - Hard-Wired Motion Sensor, LED Compatible, Commercial Or Residential Automatic Sensing
Amazon.com
$39.57
Maestro Motion Sensor Switch, 5-Amp, Single-Pole Or Multi-Location, Gray
Home Depot
2
Free shipping
$39.57
Maestro Motion Sensor Switch, 5-Amp, Single-Pole Or Multi-Location, Gray
Home Depot
$50.29
BRI Series 25Ma 600Watt Low High Bay PIR Specialty Motion Sensor With Dimming 360-Degree White
Home Depot
Free shipping
$50.29
BRI Series 25Ma 600Watt Low High Bay PIR Specialty Motion Sensor With Dimming 360-Degree White
Home Depot
$149.95
Leviton OSC10-M0W Ceiling Mount Occupancy Sensor, White
Global Industrial
$149.95
Leviton OSC10-M0W Ceiling Mount Occupancy Sensor, White
Global Industrial
$8.13
DC6-24V Motion Activated Sensor Switch Auto PIR Motion Sensor Detector
eBay.com
Free shipping
$8.13
DC6-24V Motion Activated Sensor Switch Auto PIR Motion Sensor Detector
eBay.com
$39.99
PR01 12/24V Body Infrared PIR Motion Sensor Switch Control For LED Light
Kings Outdoor Lighting
$39.99
PR01 12/24V Body Infrared PIR Motion Sensor Switch Control For LED Light
Kings Outdoor Lighting
$12.88
Motion Sensor Cooper Lighting MS180W Motion Activated 180 Degree Detection White
eBay.com
Free shipping
$12.88
Motion Sensor Cooper Lighting MS180W Motion Activated 180 Degree Detection White
eBay.com
$46.14
EIKO SENA-WCPA BLE PIR Motion Sensor 12-24V Ceiling Mount 0-10V Daylight Harvesting 12 Foot OD 3.3 Inch White Trim ID 2.7 Inch Parameters Set By Silva
Lighting Supply
$46.14
EIKO SENA-WCPA BLE PIR Motion Sensor 12-24V Ceiling Mount 0-10V Daylight Harvesting 12 Foot OD 3.3 Inch White Trim ID 2.7 Inch Parameters Set By Silva
Lighting Supply
$31.63
Single-Pole Occupancy Sensor, PIR Infrared Motion Activated Wall Switch, Matte White (2-Pack)
Home Depot
25
Free shipping
$31.63
Single-Pole Occupancy Sensor, PIR Infrared Motion Activated Wall Switch, Matte White (2-Pack)
Home Depot
$39.99
PR01 12 - 24V Body Infrared PIR Motion Sensor Switch Control For LED Light - Sun Bright Lighting
Sun Bright Lighting Inc.
$39.99
PR01 12 - 24V Body Infrared PIR Motion Sensor Switch Control For LED Light - Sun Bright Lighting
Sun Bright Lighting Inc.
展开
隐藏
1250×1250
probots.co.in
Probots Mini PIR Motion Detection Sensor AM 312 Buy Online India
736×1436
pinterest.es
Motion Sensor 14 1/2" High B…
970×728
otrabalhosocomecou.macae.rj.gov.br
Urheberrechte © Standard Lesen pir capteur Brieftasche Zugrunde richten ...
800×800
jaylans.com
Cooper Lighting Solutions • LED Floodlight, Twin Head…
800×800
Aliexpress
NFLC TD TAD T816 24V Motion Sensor Switch 24…
800×800
aliexpress.com
CORUI Motion Sensor DC 5 24V Human Body Motion S…
1001×1001
aliexpress.com
Motion Sensor DC 5V 24V Light Switch Module Huma…
894×750
mercury-jewels.vn
Free Shipping and Returns DC 6V-24V 5A Automatic Mini PIR Infrar…
1600×1600
ebay.co.uk
DC 12V-24V 8A Motion Sensor Motion Sensor Infr…
1001×1001
mercury-jewels.vn
Free Shipping and Returns DC 6V-24V 5A Automatic …
1100×1100
aliexpress.com
New Automatic DC 12V 24V Infrared Body PIR Motion …
800×800
gluons.shop
DC 12V 24V PIR Motion Sensor Function Controller White for LED Str…
450×450
walmart.ca
DC 12V/24V Motion Sensor Switch,Body Security Infra…
894×947
mercury-jewels.vn
Free Shipping and Returns DC 6V-24V 5A Automati…
1000×1000
energylux.en.made-in-china.com
Outdoor 12V 24V 110V 220V IP44 PIR Motion Sensor - …
购买 Cooper 24V Motion Sensor
赞助
$110.00
Wattstopper CI-24-1 PIR Ceiling Occupancy Sensor 24VDC/AC | Buyrite Electric BY BUYRITE ELECTRIC
BuyRite Electric
$110.00
Wattstopper CI-24-1 PIR Ceiling Occupancy Sensor 24VDC/AC | Buyrite Electric BY BUYRITE ELECTRIC
BuyRite Electric
$105.00
SENSOR SWITCH LWS-2P - Lighting & Lighting Motion Detector Supplies
Radwell.com
$105.00
SENSOR SWITCH LWS-2P - Lighting & Lighting Motion Detector Supplies
Radwell.com
$73.00
RAB GT500 Gotcha! Outdoor Motion Sensor - 110O Detection - 120-277V - Black
Pro Lighting
2
$73.00
RAB GT500 Gotcha! Outdoor Motion Sensor - 110O Detection - 120-277V - Black
Pro Lighting
$34.99
20W Integrated LED Motion Sensor Light - 1,800 Lumens - Adjustable 2 Head Security Light - 4000K - Natural White With Bronze Finish
Super Bright LEDs
$34.99
20W Integrated LED Motion Sensor Light - 1,800 Lumens - Adjustable 2 Head Security Light - 4000K - Natural White With Bronze Finish
Super Bright LEDs
$48.99
PIR Motion Sensor For 53W LED 4 Linear Light Fixture - Remote Included
Super Bright LEDs
$48.99
PIR Motion Sensor For 53W LED 4 Linear Light Fixture - Remote Included
Super Bright LEDs
$20.92
Cooper Lighting LLC Outdoor Motion Sensor In White | Wayfair
Wayfair
$20.92
Cooper Lighting LLC Outdoor Motion Sensor In White | Wayfair
Wayfair
$37.99
0-10V PIR Motion Sensor - Fixture Mount - 360 Detection - 120-277 VAC
Super Bright LEDs
$37.99
0-10V PIR Motion Sensor - Fixture Mount - 360 Detection - 120-277 VAC
Super Bright LEDs
$73.00
RAB GT500W Gotcha! Outdoor Motion Sensor - 110O Detection - 120-277V - White
Pro Lighting
40
$73.00
RAB GT500W Gotcha! Outdoor Motion Sensor - 110O Detection - 120-277V - White
Pro Lighting
$168.03
Wattstopper PIR Ceiling Occupancy Sensor 2000 Square Foot 24VDC PIR Low Voltage USA (CX-100-U)
Lighting Supply
$168.03
Wattstopper PIR Ceiling Occupancy Sensor 2000 Square Foot 24VDC PIR Low Voltage USA (CX-100-U)
Lighting Supply
$177.86
Wattstopper Dual Technology Occupancy Sensor 24VDC Center Mount 360 Degree 40 Khz (DT-305)
Lighting Supply
1
$177.86
Wattstopper Dual Technology Occupancy Sensor 24VDC Center Mount 360 Degree 40 Khz (DT-305)
Lighting Supply
$39.99
Maxlite C-Max Control Node - PIR Motion Sensor And Photocell - Dimmable - White
Super Bright LEDs
$39.99
Maxlite C-Max Control Node - PIR Motion Sensor And Photocell - Dimmable - White
Super Bright LEDs
$176.25
OAC-DT-1000-R - Cooper Lighting Motion Detector Lighting (New)
Electrical.com
$176.25
OAC-DT-1000-R - Cooper Lighting Motion Detector Lighting (New)
Electrical.com
$71.99
Cooper Osc20-Mww Occupancy Sensor 24V Motion Sensor.
eBay
$71.99
Cooper Osc20-Mww Occupancy Sensor 24V Motion Sensor.
eBay
$97.83
Wattstopper PIR Ceiling Occupancy Sensor 24 VDC/AC PIR Low Voltage Isolated Relay (CI-24-1)
Lighting Supply
$97.83
Wattstopper PIR Ceiling Occupancy Sensor 24 VDC/AC PIR Low Voltage Isolated Relay (CI-24-1)
Lighting Supply
$825.00
DANAHER MOTION RF17E01G1 - Sensors & Switches & Load Cell Supplies
Radwell.com
$825.00
DANAHER MOTION RF17E01G1 - Sensors & Switches & Load Cell Supplies
Radwell.com
$26.99
Maxxima Ceiling Mount 360 Degree PIR Occupancy Sensor - Hard-Wired Motion Sensor, LED Compatible, Commercial Or Residential Automatic Sensing
Amazon.com
283
$26.99
Maxxima Ceiling Mount 360 Degree PIR Occupancy Sensor - Hard-Wired Motion Sensor, LED Compatible, Commercial Or Residential Automatic Sensing
Amazon.com
$39.57
Maestro Motion Sensor Switch, 5-Amp, Single-Pole Or Multi-Location, Gray
Home Depot
2
Free shipping
$39.57
Maestro Motion Sensor Switch, 5-Amp, Single-Pole Or Multi-Location, Gray
Home Depot
$50.29
BRI Series 25Ma 600Watt Low High Bay PIR Specialty Motion Sensor With Dimming 360-Degree White
Home Depot
Free shipping
$50.29
BRI Series 25Ma 600Watt Low High Bay PIR Specialty Motion Sensor With Dimming 360-Degree White
Home Depot
480×320
orders.enerdrive.com.au
12/24V Motion Sensor Switch
580×580
gekpower.com
Motion Sensor 12V~24V DC 6A
1536×1536
tosunlux.eu
ST24 Infrared Motion Sensor
600×600
24incontrol.com
Motion – 24inControl
800×800
gluons.shop
DC 12V 24V PIR Motion Sensor Function Controll…
2240×1260
electricalgang.com
What is a Motion Sensor? | Types of Motion Sensor | ElectricalGang
1200×1200
gekpower.com
Motion Sensor 12V~24V DC 6A
920×920
aliexpress.com
12V Motion Sensor 220V/110V PIR Movem…
889×889
aliexpress.com
Dc 12v 24v Body Infrared Pir Motion Sensor Switc…
1500×1421
amazon.com.au
HUBER Motion 3LV Compact Infrared Motio…
675×675
lowes.com
Cooper Lighting MA Flood Light with Camera Security …
600×600
smartcoindia.com
S-24 A – Smartco
899×899
aliexpress.com
12V Motion Sensor 220V 110V PIR Movement Detector Aut…
1000×1000
aliexpress.com
LED Strip Automatic MINI DC5 24V PIR Infrared Motion Sen…
939×1000
cebuec.net
A - The A Nut Tree - 5 S £0.99 cebuec.net
800×800
aliexpress.com
LD2411S-24G-Ranging-Radar-Sensor-Module-…
1000×1000
Aliexpress
12V PIR Sensor 24V 5V DC12V Motion Sensor …
900×900
vintechstore.com
เซ็นเซอร์จับการเคลื่…
2:11
youtube.com > Jr Electric School
photocell sensor connection with magnetic contactor
YouTube · Jr Electric School · 7.6万 次播放 · 2021年6月11日
800×800
it.aliexpress.com
Acquista all'ingrosso Online 12 v sensore di …
某些结果已被隐藏,因为你可能无法访问这些结果。
显示无法访问的结果
查看更多图片
购买 Cooper 24V Motion Sensor
赞助
$28.95
Nuvo 76/500 Add On Motion Sensor, White
Global Industrial
$28.95
Nuvo 76/500 Add On Motion Sensor, White
Global Industrial
$35.00
Cooper Wiring Devices Os310u-V Ivory Motion Occupancy Sensor Wall Switch
Lite Store USA
$35.00
Cooper Wiring Devices Os310u-V Ivory Motion Occupancy Sensor Wall Switch
Lite Store USA
$90.95
Lithonia CMR 10 Extended Range 360 Deg. Sensor-Ceiling Mount Line Voltage Passive Infrared (Pir)
Global Industrial
$90.95
Lithonia CMR 10 Extended Range 360 Deg. Sensor-Ceiling Mount Line Voltage Passive Infrared (Pir)
Global Industrial
$130.00
BOSCH DS9370 - Security & Motion Detectors Supplies
Radwell.com
2
$130.00
BOSCH DS9370 - Security & Motion Detectors Supplies
Radwell.com
$113.00
TYCO PG9914 - Security & Motion Detectors Supplies
Radwell.com
$113.00
TYCO PG9914 - Security & Motion Detectors Supplies
Radwell.com
$202.00
COOPER OAC-DT-1000-R - Lighting & Lighting Motion Detector Supplies
Radwell.com
$202.00
COOPER OAC-DT-1000-R - Lighting & Lighting Motion Detector Supplies
Radwell.com
$137.00
SENSOR SWITCH WV16RP - Security & Motion Detectors Supplies
Radwell.com
$137.00
SENSOR SWITCH WV16RP - Security & Motion Detectors Supplies
Radwell.com
$32.74
RAB SPIR-S PIR Motion Sensor For G2 HID Lamps
Pro Lighting
$32.74
RAB SPIR-S PIR Motion Sensor For G2 HID Lamps
Pro Lighting
$12.99
Mini PIR Motion Sensor Switch With Built In Timer - 12-24 VDC - 6 Amps - Mini PIR Switch
Super Bright LEDs
$12.99
Mini PIR Motion Sensor Switch With Built In Timer - 12-24 VDC - 6 Amps - Mini PIR Switch
Super Bright LEDs
$155.50
RAB STL200/240 Stealth Outdoor Motion Sensor - 200° Detection - 240V - Bronze
Pro Lighting
$155.50
RAB STL200/240 Stealth Outdoor Motion Sensor - 200° Detection - 240V - Bronze
Pro Lighting
$78.35
BOSCH SECURITY VIDEO DS150I Motion Sensor (NA)
Amazon.com
38
Free shipping
$78.35
BOSCH SECURITY VIDEO DS150I Motion Sensor (NA)
Amazon.com
$110.00
Wattstopper CI-24-1 PIR Ceiling Occupancy Sensor 24VDC/AC | Buyrite Electric BY BUYRITE ELECTRIC
BuyRite Electric
$110.00
Wattstopper CI-24-1 PIR Ceiling Occupancy Sensor 24VDC/AC | Buyrite Electric BY BUYRITE ELECTRIC
BuyRite Electric
$105.00
SENSOR SWITCH LWS-2P - Lighting & Lighting Motion Detector Supplies
Radwell.com
$105.00
SENSOR SWITCH LWS-2P - Lighting & Lighting Motion Detector Supplies
Radwell.com
$73.00
RAB GT500 Gotcha! Outdoor Motion Sensor - 110O Detection - 120-277V - Black
Pro Lighting
2
$73.00
RAB GT500 Gotcha! Outdoor Motion Sensor - 110O Detection - 120-277V - Black
Pro Lighting
$34.99
20W Integrated LED Motion Sensor Light - 1,800 Lumens - Adjustable 2 Head Security Light - 4000K - Natural White With Bronze Finish
Super Bright LEDs
$34.99
20W Integrated LED Motion Sensor Light - 1,800 Lumens - Adjustable 2 Head Security Light - 4000K - Natural White With Bronze Finish
Super Bright LEDs
$48.99
PIR Motion Sensor For 53W LED 4 Linear Light Fixture - Remote Included
Super Bright LEDs
$48.99
PIR Motion Sensor For 53W LED 4 Linear Light Fixture - Remote Included
Super Bright LEDs
$20.92
Cooper Lighting LLC Outdoor Motion Sensor In White | Wayfair
Wayfair
$20.92
Cooper Lighting LLC Outdoor Motion Sensor In White | Wayfair
Wayfair
$37.99
0-10V PIR Motion Sensor - Fixture Mount - 360 Detection - 120-277 VAC
Super Bright LEDs
$37.99
0-10V PIR Motion Sensor - Fixture Mount - 360 Detection - 120-277 VAC
Super Bright LEDs
Shop 24v motion sensor | Amazon.com Official Site
https://www.amazon.com
赞助
Browse & discover thousands of brands. Read customer reviews & find best sellers. Find deals on 24v motion sensor on Amazon
Explore Amazon Devices · Fast Shipping · Shop stocking stuffers · Explore top gifts
报告不当内容
请选择下列任一选项。
无关
低俗内容
成人
儿童性侵犯
Invisible focusable element for fixing accessibility issue
反馈