Features: 1. 100% brand new and high quality. 2. Appearance of light and novel, easy to carry, easy to operate 3. High sensitivity, fast restored response time, long operating life. 4. Sound, light and vibration alarm 5. The formaldehyde detector is a portable detector for detecting formaldehyde. It can continuously monitor the formaldehyde concentration in the surrounding environment. 6. It is widely used in Building materials and indoor air quality detection, Environment and Public Health inspection and property management and other industries. Specification: Condition: 100% Brand New Model: PT603A Sensor: Planar Semiconductor Gas Sensor Detection Gas: Formaldehyde and TVOC Display Unit: mg/m3 Range: 0-2.999mg/m3(HCHO) 0-9.999mg/m3(TVOC) Alarm: sound and light alarm Alarm Point: low alarm point 0.08mg/m3, high alarm point 0.15mg/m3(HCHO) low alarm point 0.15mg/m3, high alarm point 1mg/m3(TVOC) Battery Type: 3 * AAA/7 alkaline batteries(not included) Operating Temperature: 0~+50℃ Operation Humidity: 15%-90%RH(no condensation) Weight: Approx. 155g / 5.5oz Package List: 1 * Formaldehyde Detector 1、100% brand new and high quality. 2、Appearance of light and novel, easy to carry, easy to operate 3、High sensitivity, fast restored response time, long operating life 4、Sound, light and vibration alarm 5、The formaldehyde detector is a portable detector for detecting formaldehyde. It can continuously monitor the formaldehyde concentration in the surrounding