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Amazon.com: 5pcs IR Flame Sensor Module, Fire Detection Detector Sensor Flame Sensing Relay Module for Detecting Flame : Industrial & Scientific
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MHCOZY WiFi Wireless Smart Switch Relay Module for Smart Home 5V 5V/12V,Ba applied to access control, turn on PC, garage door (5v): Amazon.com: Tools & Home Improvement
Amazon.com: Current Sensor Detector Module DC12V 4-20mA Current Detecting Delay Relay Board with Digital Display : Industrial & Scientific
Amazon.com : Taidacent 12V 24V Relay Output 4 in1 Ultrasonic Parking Sensor Ultrasonic Proximity Range Finder Distance Sensor with LCD1602 Distance Can Be Set (24V Relay Output, 250cm Cable Length for Probe) :
Smoke Sensor Relay Switch Smoking Detector Alarm Module Controller 12V 24V MQ-2 for Warehouse Hotel Showroom - - Amazon.com
Amazon.com: Neoteck 2PCs DC 12V Timer Switch 16A Digital Electronic LCD Time Relay Switch Programmable Timer with Wire Connectors Waterproof Cover : Tools & Home Improvement
Amazon.com: KNACRO PTR4-IND Controller 4-Channel Time Relay DC 6V 9V 12V 36V 6-40V 0.1s~9999m Adjustable Run independently/in Turn 4ch Load Linkage Run in Turn, Similar to PLC Sequence Control : Electronics
Amazon Alexa Voice Remote (3rd Gen)
YESLY Multifunction Bluetooth Finder Relay Type 13728230B000 - Series 13 YESLY : Amazon.com.be: Industrial & Scientific
Finder 7t8100002303pas Cupboard 1 NO 10 A with Adjustable Thermostat - - Amazon.com
NOYITO Voltage Relay Module Upper Lower Limit Detection Control Switch Off ON Over Voltage Protection Battery Charge Discharge Timing (12V): Amazon.com: Tools & Home Improvement
Amazon.com: Eujgoov 4 Channel DC 7‑28V/DC 5V Relay Module WiFi Remote Control Development Board for ESP8266 Secondary Development Learning : Electronics
Amazon.com: KNACRO 4-Channel Programmable Time Relay Delay Switch Module 99-Step Timed Solenoid Valve Linkage Control Optocoupler Isolation PTR4-SP Controller with LCD : Electronics