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relay sensor switch
1,000+ factories verified
Cheemi Technology Co., Ltd.
8 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Relay Output Photoelectric Sensor Diffuse Reflection Switch DC AC No/Nc Sn 30cm
US$
0.10
1 Piece
(MOQ)
Photoelectric Switch Through-Beam Sensor with Relay Output DC/AC No Sn 5m
US$
0.10
1 Piece
(MOQ)
High-Precision Industrial Photoelectric Switch with Advanced Diffuse Reflection
US$
0.10
1 Piece
(MOQ)
High-Performance DC Photoelectric Switch with Long-Lasting Relay Output
US$
0.10
1 Piece
(MOQ)
1/4
Nanjing Hangjia Electronic Technology Co., Ltd.
11 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Explosion Proof Electronic Pressure Switch Two Way Relay 4~20mA Output Pressure Sensor
US$
70.00
-
85.00
1 Piece
(MOQ)
Electronic Flow Switch PNP NPN Relay Flow Switch Sensor
US$
80.00
-
100.00
1 Piece
(MOQ)
Highjoin Level Switch Microwave Type Peek Wetted Parts SS304 Housing Relay Spst or PNP NPN Output
US$
105.00
-
120.00
1 Piece
(MOQ)
Electronic Thermal Flow Switch PNP NPN Relay Output Compact Flow Switch
US$
80.00
-
100.00
1 Piece
(MOQ)
1/4
Nanjing Hangjia Electronic Technology Co., Ltd.
11 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Hydraulic Oil Industry Relay Explicit Digital Water Treatment Thermal Flow Switch Sensor
US$
180.00
-
210.00
2 Pieces
(MOQ)
NPN PNP relay level switch microwave sensor for Viscous medium
US$
105.00
-
120.00
1 Piece
(MOQ)
Smart Pressure Controller Relay Pressure Switch Compressor and Water Pump Pressure Sensor
US$
35.00
-
45.00
1 Piece
(MOQ)
PT100 sensor 4-20mA Two-way relay Electrical Temperature Switch
US$
70.00
-
80.00
1 Piece
(MOQ)
1/4
BAOJI XINGYUTENG MEASURE AND CONTROL INSTRUMENTS CO., LTD.
5.0
Send Inquiry
4-20mA/RS485 Induatrial Pressure Switches Sensor 4 Ways Relay Output Inteligent Pressure Sensors Control
US$
70.00
-
80.00
1 Piece
(MOQ)
LED Real-Time Display PNP Relay Thermal Flow Sensor Controller Switch for Water River Liquid Oil
US$
59.00
-
80.00
1 Piece
(MOQ)
G1/2 Oil Gas Fuel Tank Water Thermal Monitoring Transmitters Flow Meter Switch Controller Sensor
US$
55.00
-
65.00
1 Piece
(MOQ)
4-20mA 220VAC/24VDC Electronic LED Temperature Sensor Switch Qtk104
US$
89.00
-
99.00
1 Piece
(MOQ)
1/4
Yantai Auto Instrument Making Co., Ltd.
32 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Solid and Liquid Relay Spdt PNP NPN Tuning Fork Level Sensor Switch
US$
135.00
1 Piece
(MOQ)
PNP NPN Relay Tuning Fork Level Switch Liquid Vibration Level Sensors
US$
135.00
1 Piece
(MOQ)
Vibrating Tuning Fork Level Switch Vibration Fork Sensor Level Switch
US$
75.00
1 Piece
(MOQ)
Compact Low Cost Tuning Fork Water Liquid Level Control Switch Fuel Oil Level Sensor Switch
US$
120.00
1 Piece
(MOQ)
1/4
Sichuan Weinasa Technology Co., Ltd.
9 yrs
·
5.0
·
Trading Company
Send Inquiry
Hsc-J20z Relay Output Temperature and Humidity Resistor Monitor Controller Sensor Polymer Smart Switch for Humidifiers
US$
6.90
-
7.90
1 Piece
(MOQ)
Hsc-J20z Air Relay Output Humidity Controller with Sensor Humidity Sensor Switch for Humidifiers Cabinet for Humidifiers
US$
6.90
-
7.90
1 Piece
(MOQ)
Veinasa-Dzsc02 RS485 Relay River Depth Resource Monitoring Electronic Digital Staff Gauge Water Level Sensor
US$
199.00
-
229.00
1 Piece
(MOQ)
Xs-Fb Wind Speed Sensor Monitor Measuring Device Meter with Display and Alarm Hot Wire Anemometer
US$
129.00
-
168.00
1 Piece
(MOQ)
1/4
TIANJIN G-TEK SENSOR TECHNOLOGY CO., LTD
12 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Factory Pmf50RF Infrared Relay Output Photoelectric Switch Sensor with CE Certificate
US$
16.00
-
20.00
1 Set
(MOQ)
10-30V Mirror Reflector Plate Photocell Switch for Automatic Speed Doors
US$
18.00
-
25.00
5 Sets
(MOQ)
Pmf80r 12m Long Range Laser Retro-Reflective Sensor for Industrial Doors and Automation Industry
US$
18.00
-
25.00
10 Sets
(MOQ)
Wholesale Universal 7m Reflection Photoelectric Switch for Rolling Sheet Doors
US$
11.00
-
13.00
10 Sets
(MOQ)
1/4
Yiwu Binge Electrical Co., Ltd.
5.0
Send Inquiry
No Neutral Touch Sensor Control Relay Wall Dimmer Switch for Dimmable LED
US$
5.16
-
6.56
10 pieces
(MOQ)
EU Without Neutral Wire Glass Hand Wave Infrared Sensor Wall Light Switch
US$
2.30
-
3.15
1 Piece
(MOQ)
Bingoelec for Hotel Bathroom High Quality EU IR Capacitive Infrared No Touch Sensor Switch
US$
2.30
-
3.15
100 pieces
(MOQ)
Bingoelec 16A Mini Smart Light Dimmer Curtain Switch Module Zigbee WiFi 2way Relay Switch with Tuya Module Remote Control
US$
4.95
-
5.75
30 pieces
(MOQ)
1/4
Yueqing Winston Electric Co., Ltd.
16 yrs
·
4.7
·
Trading Company
Send Inquiry
Relay Output Trough-Beam GM20-20j Security Switch, Sensor Switch
US$
196.00
-
220.00
1 Piece
(MOQ)
G51 Through-Beam Type Diffuse Type Retroreflective Type Photoelectric Switch
US$
4.00
-
8.00
10 Pieces
(MOQ)
WiFi/Zigbee3.0 6/16 Channel 16A 50A Smart Relay Switch Module Power-off Memory Smart Circuit Breaker Module Smart Relay Switch
US$
19.20
-
24.90
10 Pieces
(MOQ)
G56 Photoelectric Switch Through-Beam Type Diffuse Type Retroreflective Type
US$
6.20
-
7.50
10 Pieces
(MOQ)
1/4
F&C Sensing Technology (Hunan) Co., Ltd.
13 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Customized Relay Type Proximity Sensor Switch Shielded M8 2mm Range PNP. No
US$
8.00
-
15.00
3 Pieces
(MOQ)
Customized M8 Shielded Proximity Sensor Switch, 2mm Range, PNP, Relay Type
US$
8.00
-
15.00
3 Pieces
(MOQ)
Capacitive Proximity Sensor for Displacement Detection of Auntomatic Equipment
US$
45.00
-
75.00
1 Piece
(MOQ)
Relay Type Proximity Sensor 3.8mm Diameter 0.8mm Range NPN. No 12-24VDC
US$
8.00
-
15.00
3 Pieces
(MOQ)
1/4
Hunan Firstrate Sensor Co., Ltd.
16 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
FST200-211 Relay 4-20mA Output 12v Wind Speed Sensor Alarm Indicator Switch
US$
50.00
-
80.00
2 Pieces
(MOQ)
Digital Wind Sensor Switch for Recording Wind Speed Sensor Cup Anemometer
US$
50.00
-
80.00
2 Pieces
(MOQ)
FST200-211 Digital Wind Speed Sensor Anemometer Indicator Alarm Controller
US$
50.00
-
80.00
2 Pieces
(MOQ)
FST200-211 Cheap Price Factory Supply Digital Wind Speed Alarm Controller
US$
50.00
-
80.00
2 Pieces
(MOQ)
1/4
Wenzhou Bingo Imp. & Exp. Co., Ltd.
5.0
Send Inquiry
Float Level Switch Liquid Level Relay 2/3/5/8/10 Meter Sensor
US$
3.00
-
5.00
10 Pieces
(MOQ)
High - Quality Hot - Sale RF Admittance Level Meter Object Level Alarm Sensor Capacitance Switch
US$
75.00
1 Piece
(MOQ)
Cable Float Level Switch Float Type Liquid Level Sensor
US$
2.50
-
3.50
10 Pieces
(MOQ)
Ss Mini Cable Float Level Switch Water Level Switch
US$
2.50
-
3.50
10 Pieces
(MOQ)
1/4
Shenzhen Winfor Canbo Technology Co., Ltd.
Send Inquiry
Canbo M-201g Touchless Hand Sensor Switch with 86-Type Panel: Relay Dry Contact Output for All Access Control Entrances
US$
20.00
1 Set
(MOQ)
High-Stability Hand Press Door Opener Switch Kit for Automatic Door
US$
88.00
1 sets
(MOQ)
No/Nc/COM Relay Automatic Sliding Gate Opener Hand Wave No Touch Switch
US$
20.00
2 Pieces
(MOQ)
Adjacent Sensor Avoid Interference Human Body Infrared Detector Motion Switch
US$
62.00
2 sets
(MOQ)
1/4
Shenzhen Tongchuang Mechatronics Co., Ltd.
5.0
Send Inquiry
ISO13849-1 Cat.4 Safety Door Switches With 2 N.C Relay Safety Output Professional Protection Sensor
US$
30.00
-
45.00
1 Piece
(MOQ)
Safety switch Sensor with latch For fence locking in the production area
US$
30.00
-
45.00
1 Piece
(MOQ)
Industrial SecurityTMC 1B-xxx Non-Contact Door Switches Circuit Breaker Safety Switches
US$
30.00
-
45.00
1 Piece
(MOQ)
Customized IP69K Magnetic Coded Switches Proximity Switch Spot Switch Sensor
US$
30.00
-
45.00
1 Piece
(MOQ)
1/4
Shanghai Yuanben Magnetoelectric Tech. Co., Ltd.
Send Inquiry
Yuanben Brass Flow Switch Sensor Piston Flow Monitoring Water Relay Cooling System
US$
1.00
30 Pieces
(MOQ)
Mpss-1505 Coded Magnetic Safety Switch No-Contact Safety Switches
US$
1.00
50 Pieces
(MOQ)
Brass Flow Switch 3/4" NPT Water Flow Relay Flow Sensing Leakage Detection Cooling Systems Circulating Pump Tankless Water Heater Washing Machine Dish Washer
US$
1.00
20 Pieces
(MOQ)
Flow Switch Yuanben Fs500 Brass 1/2" BSPP BSPT Threads Water Flow Relay Sensor
US$
1.00
100 Pieces
(MOQ)
1/4
Jiangmen Gepsen Lighting Electric Co., Ltd.
12 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Photocell Relay Sensor Switch for Street Light
US$
1.14
-
1.23
1,000 Pieces
(MOQ)
Photo Electric Relay PCB OEM
US$
0.51
-
0.65
1,000 Pieces
(MOQ)
Lipu NEMA Twist-Lock Photocell Photocell Sensor
US$
1.09
-
1.16
5,000 Pieces
(MOQ)
Three Phase 380V DIN Rail Intelligent Adjustable Protector Relay Five LED Display 63A Over and Under Voltage Protective Device
US$
9.90
-
12.50
100 Pieces
(MOQ)
1/4
Hangzhou Dooren Technology Co., Ltd.
Send Inquiry
12VDC Relay Switch with Sensor
US$
50.00
100 Pieces
(MOQ)
Timer Switch for Automatic Door
US$
10.00
10 Pieces
(MOQ)
Photocell for Gate Opener, Infrared Sensor
US$
20.00
50 Pieces
(MOQ)
Touchless Disabled Switch for Nursing Room, Handicap Access Switch for Washroom
US$
108.00
10 Pieces
(MOQ)
1/4
Shenzhen Sumring Technology Co., Limited
12 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
PIR Motion Sensor with Relay Switch
US$
5.51
-
7.83
1 Piece
(MOQ)
High Quality Wired Ceiling Mounted Motion Detector
US$
9.00
-
9.50
1 Piece
(MOQ)
PIR Motion Sensor Manufacturer Occupancy Motion Detector
US$
4.00
-
5.00
1 Piece
(MOQ)
High Stability Ceiling Mounted 360 Degree Infrared Motion PIR Alarm Sensor Detector
US$
9.00
-
9.50
1 Piece
(MOQ)
1/4
Yueqing Yisheng Pneumatic Co., Ltd
5.0
Send Inquiry
D-A93 Agricultural Modernization Sensor Relay/PLC 24VDC-100VDC Magnetic Switch
US$
2.00
-
10.00
1 Piece
(MOQ)
D-M9n Magnetic Reed Switch Pneumatic Cylinder Sensor Magnetism Switch for Air Cylinder Control
US$
2.00
-
10.00
1 Piece
(MOQ)
Dmsg-06IR Cylinder Parts Air Pneumatic Cylinder Magnetic Reed Switch Sensor
US$
2.00
-
10.00
1 Piece
(MOQ)
Qd-10 Magnetic Reed Switch Proximity Sensor Proximity Switch for Air Pneumatic Cylinder
US$
0.10
-
10.00
1 Piece
(MOQ)
1/4
Hangzhou Xinjian Electronic Co., Ltd.
5.0
Send Inquiry
Industrial Grade Sw6 Water Leak Switch for Harsh Environments -20º C~55º C
US$
15.00
-
18.00
1 Piece
(MOQ)
Sw6 Water Leak Switch with High Sensitivity Waterproof Probe Design
US$
15.00
-
18.00
1 Piece
(MOQ)
High Sensitivity Industrial Sw6 Water Leak Detection Switch
US$
15.00
-
18.00
1 Piece
(MOQ)
Compact Sw6 Water Leak Switch for Humidity 5%-95% Wide Voltage Input
US$
15.00
-
18.00
1 Piece
(MOQ)
1/4
Ningbo Yoursensor Electronic Technology Co., Ltd.
12 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Yoursensor Precise Sensor - Based Safe Touchless Auto Door Switch for Special Room
US$
70.00
-
85.00
10 Pieces
(MOQ)
Yoursensor Ys450-L Touchless Wave Sensor Button Sliding Door Lockable Switch for Handicap Door
US$
70.00
-
85.00
10 Pieces
(MOQ)
Touchless Sensor Switch for Public Restrooms - Easy Access
US$
70.00
-
85.00
10 Pieces
(MOQ)
Reliable Sensor Switch for Disabled Access Automatic Doors
US$
50.00
-
65.00
10 Pieces
(MOQ)
1/4
Shanghai TM Sensor Co., Ltd.
20 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Alarm NPN Relay High Temperature Electronic Pressure Switch
Negotiable
1 Piece
(MOQ)
Relay NPN PNP Alarm Electronic Pressure Controller
Negotiable
1 Piece
(MOQ)
Raw Petroleum Alarm Relay NPN PNP Pressure Switch
Negotiable
1 Piece
(MOQ)
Alarm Relay Oil Fuel Fluid Electronic Pressure Switch
Negotiable
1 Piece
(MOQ)
1/4
Shenzhen New Star Tech Co., Ltd.
11 yrs
·
5.0
·
Trading Company
Send Inquiry
Digital Water Flow Sensor Min Flow Temperature Control Switch for Water Dispenser
US$
4.00
-
5.00
5 Pieces
(MOQ)
High Precise Water Level Paddle Mass Flow Sensor Liquid Detection Meter Switch
US$
4.00
-
5.00
5 Pieces
(MOQ)
Ultrasonic Capacitive Water Liquid Level Heat Pump Flow Pressure Control Switches Sensor
US$
4.00
-
5.00
5 Pieces
(MOQ)
High Protection Liquid Induction Control Meter Water Level Flow Sensor Switch
US$
4.00
-
5.00
5 Pieces
(MOQ)
1/4
Hubei Xinwangda Technology Co., Ltd
5.0
Send Inquiry
Advanced Photoelectric Proximity Sensor Switch for Industrial Use
US$
13.00
1 Set
(MOQ)
Reliable Optical Proximity Switch for Enhanced Automation Control Systems
US$
8.00
-
10.00
10 Sets
(MOQ)
High Speed Door Sensor Infrared Photoelectric Protection Switch
US$
10.00
10 Sets
(MOQ)
Durable Proximity Switch with Customization and Enhanced Stability Features
US$
13.00
1 Set
(MOQ)
1/4
HAIDA DOORCONTROL CO., LTD.
14 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Access Control System Automatic Door Hands Free Touch Foot Sensor Switch
US$
40.00
-
45.00
1 Piece
(MOQ)
China Factory Access Control Security System Auto Door Sensor Switch
US$
40.00
-
45.00
1 Piece
(MOQ)
Easy to Install Auto Door Hand Free Foot Sensor Switch
US$
40.00
-
45.00
1 Piece
(MOQ)
Automatic Sliding Door Access Control System Kick Switch Foot Sensor
US$
40.00
-
45.00
1 Piece
(MOQ)
1/4
Taizhou Tianlai Youyang Electronic Technology Co., Ltd.
9 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Tianlai Tuya Home Automation System WiFi Relay Switch 2 Gang Mini Smart Switch
US$
4.50
-
5.00
5 pieces
(MOQ)
Tianlai 1 Gang Wholesale Zigbee Smart DIN Rail Relay Module Tuya Smart Home Switch
US$
2.50
-
3.00
5 pieces
(MOQ)
Tianlai 220V Smart Home Wall Switch WiFi 2 Gang Wireless Relay
US$
4.50
-
5.00
5 pieces
(MOQ)
10A Tuya Zigbee Smart Light Switch 2 Gang Dimmer Switch Panel and Relay Box
US$
7.00
-
8.00
5 Pieces
(MOQ)
1/4
Meokon Sensor Technology (Shanghai) Co., Ltd.
13 yrs
·
5.0
·
Manufacturer/Factory
Send Inquiry
Industrial Single Control Air Pressure Switch Double Relay Signal MD-S928
US$
25.99
-
99.99
1 Piece
(MOQ)
Electronic Pressure Controller Water Pump Relay Digital Pressure Switch
US$
13.00
-
15.00
100 Pieces
(MOQ)
Waterproof Ultrasonic Level Sensor with RS485 Output
US$
146.25
-
199.99
2 Pieces
(MOQ)
Waterproof Ultrasonic Level Gauge with 4~20mA
US$
146.25
-
199.99
2 Pieces
(MOQ)
1/4
Chengdu Sentec Technology Co., Ltd.
5.0
Send Inquiry
Stainless Steel Tuning Fork Level Sensor Vibrating Tuning Fork Level Switch for Mud Acid
US$
70.00
-
85.00
1 Piece
(MOQ)
Sentec Fst310 2 Way PNP Digital Explicit Thermal Sensor Flow Valve Switch
US$
70.00
-
100.00
1 Piece
(MOQ)
Customized Insertion Length SS304 Material Sensor Tuning Vibrating Fork Type Level Switch Micro Switch
US$
70.00
-
85.00
1 Piece
(MOQ)
Liquid Solid Vibrating Tuning Fork Level Switch Water Measuring Sensor Switch
US$
70.00
-
85.00
1 Piece
(MOQ)
1/4
Atech Sensor Co., Ltd
5.0
Send Inquiry
Explosion-Proof Stainless Steel Body Vibrating Tuning Fork Level Switches
US$
60.00
1 Piece
(MOQ)
316ss Good Quality Water Liquid Explosionproof Relay Output Tuning Fork Level Switch
US$
97.00
1 Piece
(MOQ)
Smart Tuning Fork Level Switch Liquid Level Sensor
US$
97.00
1 Piece
(MOQ)
Manufacturers Price Water Powder Granule PTFE Tuning Fork Liquid Level Switch
US$
97.00
1 Piece
(MOQ)
1/4
Xi'an Uplift Parts Co., Ltd.
4.9
Send Inquiry
Tl-G3d Elevator Leveling Sensor Elevator Photocell Switch
US$
25.00
-
30.00
2 Pieces
(MOQ)
Elevator Sensor Elevator Travel Switch Lxp1 (3SE3) -200-0c
US$
6.00
-
8.00
5 Pieces
(MOQ)
Uplift Psn17-5DN Elevator Photocell Switch Elevator Parts
US$
35.00
-
50.00
2 Pieces
(MOQ)
Elevator Parts of Switch Kone Magnetic Switch Kone Sensor 77n 77s 77u
US$
2.00
-
5.00
1 Piece
(MOQ)
1/4
1
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