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Fixed LCD Display Dust Detector and Combustible Gas Detector

US$164.20-171.40 Min. Order: 1 Piece

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4-20mA Output Ammonia Sensor NH3 Gas Leak Detector

US$659.00-1,500.00 Min. Order: 1 Piece

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Industrial Gas Detector and Odor Gas Detection Analyzer for Various Gases

US$161.20-168.20 Min. Order: 1 Piece

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Wall-Mounted CO NOx VOC HF Toxic Gas Detector with Temperature Humidity Display

US$659.00-1,500.00 Min. Order: 1 Piece

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Ammonia Gas Detector Wall-Mounted NH3 Gas Detector

US$659.00-1,500.00 Min. Order: 1 Piece

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Fixed NH3 Multi-Gas Detector IP65 Pumping with Tube Connection

US$659.00-1,500.00 Min. Order: 1 Piece

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Smart Ultrasonic Time Alarm Water Level Indicator Contactless Monitoring System for Tank

US$28.00-38.00 Min. Order: 1 Piece

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NB-IoT LoRa LCD Display Digital Remote Monitoring for Sewer Water Level High Accuracy Hydrostatic Pressure Water Level Alarm

US$665.00-735.00 Min. Order: 2 Pieces

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0~1000mH2O Liquid Level Sensor Submersible Level Monitor Water Treatment 4-20mA and Relay Alarm

US$40.00-50.00 Min. Order: 1 Piece

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Remote Wireless Ultrasonic Water Liquid Level Depth Sensor Temperature Meter with Alarm for Water Tank

US$45.50-55.50 Min. Order: 2 Sets

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TLC2404P LoRa Remote Water Tank Level Monitoring Indicator with Overfill Shortage Beep Alarm

US$39.00-45.00 Min. Order: 5 Sets

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Wall Mount Water Leak Transmitter RS485+Relay Dual Output Water Immersion Sensor IP54 OLED Display Flood Alarm

US$17.00-34.00 Min. Order: 1 Piece

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Compact Wireless Water Leak Alarm with APP Notifications for Home and Business

US$130.00-140.00 Min. Order: 500 Pieces

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WiFi Water Leak Detector Water Immersion Sensor Remote Control Monitor Alarm

US$6.30-6.50 Min. Order: 1 Piece

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Multi-Function Emergency Sound Light Alarm for Fire Safety Public Alert

US$2.70-3.10 Min. Order: 1,000 Pieces

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New arrival 4G IP67 waterproof security elderly parent GPS SOS alarm watch with HR BP fall dectection for emergency call D42S

US$32.50 Min. Order: 1 Piece

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IP67 Waterproof Emergency Call 4G Smart Watch with HR BP SP02 Monitoring for Elderly Parents Health Care Y6T

US$27.50 Min. Order: 1 Piece

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Security Emergency Sound Tones Wireless Outdoor Alarm Red Siren Light 220V

US$30.00-100.00 Min. Order: 1 Piece

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Fashion 4G Smart Watch for Elderly with heart rate blood pressure monitor Fall Detection and SOS Emergency Call Button Y6E

US$31.00 Min. Order: 1 Piece

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Safe Sound 130dB Personal Alarm Keychain Self Defense Siren Emergency Flashlight White

US$2.28-3.15 Min. Order: 1 Piece

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Message Alarm for Smart Alarm Box and Security Solutions

US$800.00-3,000.00 Min. Order: 1 Piece

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<50mA Low Power 12-24VDC Relay Output 0.65kg Audible and Visual Alarm with Durable Steel Shell

US$13.00-15.00 Min. Order: 3 Pieces

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12-48V 102dB/97dB/92dB/87dB Beep Sound Audible and Visual Alarm

US$6.99-19.99 Min. Order: 20 Pieces

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Child Anti-Lost SOS Call Location Tracker GSM GPS Kids Smart Watch Q528

US$16.20-17.50 Min. Order: 100 Pieces