Specifications：
Product Name: Carbon Monoxide Measuring Range
1~1000PPM Accuracy: ±5%/±10PPM Reaction time: <60 seconds
Resolution: 1PPM
Humidity: 0~99% relative humidity
Operating temperature: 0°C~+50°C Storage temperature: -30°C~+60°C
Power supply: 1.5V AAA battery x 3 Auto power off:
Auto power off within 10 minutes without operation (active/inactive adjustment) Sensor type: Specific gas (CO)
sensor
Sensor life: 3 years
Backlight: High brightness backlight
Data storage function: Yes
Safety alarm: Alarm
with continuous sound when reaching 200PPM

Package included:
Main body x 1
1.5V AAA battery x 3

Note:
1.Under the influence of light and the display, the color difference may decrease slightly.
2.Due to manual measurement, please allow size differences about 1-3cm. Thank you for your understanding