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Portable NH3 Ammonia Gas Detector with Temperature & Humidity Monitor 0 100 PPM Range
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Portable Ammonia NH3 Smart Gateway 0 100ppm Detection Range Wi Fi Enabled Android OS AMOLED 2.0 2.9″ Screen for Farm Livestock
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Battery Powered Android Plastic Ammonia Air Quality Monitor for Farm Poultry Pig and Livestock with Large Digits Display
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Industrial Portable 4 in 1 Ammonia (NH3) Gas Detector for Hotel Kitchen Chemical Plant Refinery Canteen
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Industrial 3 in 1 Ammonia Transmitter RS485 Modbus RTU Custom 0 50 100 200ppm for Agriculture Workshop
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Zigbee 3.0 Tuya Emergency Call Button Alarm Elderly Personal SOS Panic Button
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