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Security & Protection - Building Automation

19 364 results.
US $84.13

RS-PH-N01-3-*-EX 0-14ph Glass Electrode Method RS485 Output Industrial Water Ph Sensor

US $15.05

Rs422 To Wifi Industrial Automation Products Atc 102 5v None Automatic Meter Reading Automaton Real

US $16.92

SVR1000/AD220 High Quality Single Phase Voltage Relay Voltage protection Over&under Voltage Relays

US $13.79

2PCS DIEWU Manufacturer White Case 5 Ports RJ45 Megabit 10/100mbps Ethernet Lan Switch

US $9.39

50PCS New Original Electronic Component WS01-313 Environmental Protection Polyme Humidity Sensor Resistance Sensor Module

US $52.8
US $85.16

SONOFF POWCT POW Ring Smart Power Meter Current Transformer 100A Energy Monitor Contacter Control Works with Alexa Google IFTTT

US $24.6

3PCS GINRI VP-2166D 100 Joules Over Under Voltage Single Phase Protector

US $97.3

50PCS New Non-contact Capacitive Liquid Level Sensor External Detection And Induction Water Level Sensor For Humidifiers

US $16.75

GINRI DVRD-48 48V DC 2CO OverVoltage Undervoltage Monitor Relay Voltage Protection Relay

US $11.27

Portable USB-C 10Gbps 2230 M.2 NVMe SSD Enclosure Hard-disk Case USB 3.1 Gen 2 NVMe

US $80.54

4S CO Electrochemical Gas Sensor Carbon Monoxide Concentration Sensor with 20ma Max Output