Keep your indoor environment safe and healthy with the Air Quality Monitor. This portable sensor tester detects formaldehyde (HCHO), TVOC, CO2, temperature, and humidity, providing real-time alerts to help you maintain a comfortable and safe living or working space.

Main Features (JMS11):

• Detects formaldehyde (HCHO) using semiconductor gas sensors
• Measures TVOC levels through semiconductor gas sensor technology
• LED light and sound alarm: red, yellow, green indicate Poor, Normal, Excellent air quality
• Power reminder displayed via 3 LED lights
• Operates on 2 x AA alkaline batteries
• Portable and easy to use

Main Features (JMS12):

• HCHO and TVOC testing using semiconductor gas sensors
• Measures temperature and humidity using semiconductor sensors
• Real-time sound and light alerts for air quality, with automatic alarm for poor conditions
• Battery level displayed on screen
• Adjustable display brightness
• Sound alert can be turned on/off
• Powered by 700mAh lithium battery

Specifications:

• Models: JMS11, JMS12
  
• DIY Supplies: Woodworking
• Display Mode: LED digital display / LCD Screen
• Working Voltage: 1.5V – 3.2V (JMS11), Lithium battery 700mAh (JMS12)
• Testing Content: HCHO, TVOC, CO2, Temperature, Humidity