$ 59
HFS-20 Geiger Counter Nuclear Radiation Detector, Personal Dosimeter, Portable Beta Gamma X-ray Radiation Monitor with Backlight LCD Display, Battery Powered quantity
$ 59
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$ 139
GZAIR PT04 Smart Vehicles Air Quality Monitor with CO/CO2/Pressure/Humidity/Temperature Detection Sensors, Carbon Monoxide detector for Automotive, Car, RV, Truck, and Camping, Bluetooth, Data logger quantity
$ 139
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$ 89
FS300 Geiger Counter Nuclear Radiation Detector Dosimeter, Portable Beta Gamma X-ray Radiation Meter Monitor quantity
$ 89
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$ 169
GZAIR PT02 Plus Wi-Fi Air Quality Monitor Detects Pollen, TVOC, CO, CO2, PM2.5, 1.0, Temp. and RH, IoT Controller, RS485 Data Logger, Smart Home quantity
$ 169
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$ 150
GZAIR MCH3 Black CO2 Data Logger Monitor, IAQ CO2 Detector, Dual-Channel NDIR Sensor, Tabletop Carbon Dioxide Meter with Data Export, Temperature and Humidity, 0~5000ppm Range quantity
$ 150
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