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co2 monitor with dual-channel ndir sensor
GZAIR MCH3-B CO2 Data Logger Monitor, Battery Included IAQ CO2 Detector, Dual-Channel NDIR Sensor, Tabletop Carbon Dioxide Meter with Data Export, Temperature and Humidity, 0~5000ppm Range Black
$160
$160 ×
radon detector
GZAIR PT07 Smart Radon Detector for Home, WiFi Radon Monitor Fast Capture of Fluctuating Levels, Radon Tester Short & Long-Term Monitoring with Alert Notifications, Data logger
$179
$179 ×

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Subtotal $339
Total $339
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