Carbon Dioxide Gas Detector Handheld Indoor Household Air CO2 Concentration Alarms

1. Measuring range: 0-9999ppm
2. Resolution: 1ppm
3. Accuracy: +/-(40+3%) ppm
4. Single response time: 2s
5. Data storage: 100 records
6. Sensor: Senseair S8
7. Working temperature: 0-50 degrees Celsius
8. Working humidity: 0%-85%RH
9. Storage humidity: -40 - 70 degrees Celsius
10. Warm-up time: 8s
11. Automatic backlight off: 30s
12. Alarm prompt: sound + display
13. Power supply: 3 x 1.5V AAA batteries (not included)
14. Size: about 18.5 x 6.35 x 2.7cm
15. Weight: about 172g

Features:
1. Temperature and humidity measurement, support for a variety of industrial temperature measurement
2. Fast measurement, 2s/time real-time refresh
3. When the carbon dioxide/temperature and humidity exceed the set alarm value, the machine will automatically flash the alarm and emit a beeping alarm sound
4. Can store 100 sets of measurement data including carbon dioxide concentration and temperature and humidity
5. Safety protection, no fear of environmental challenges, dustproof and waterproof