Four-in-one Gas Detector Toxic and Harmful Detection Combustible Carbon Monoxide Hydrogen Sulfide Oxygen

1. ability to set alarm concentration, password, digital and intelligent.2. reliability and safety certified by CE, ISO, etc.3. Widely used in factory, home, office and public places.Model: ST8900Orange colorCO Sensor Range: 0-999ppmCO sensor resoltio: 1 million ppmH2S sensor range: 0-500ppH2S resoltio sensor: 1ppmO2 sensor range: 0-30% VOLO2 resoltio sensor: 0.1%Range of sensors LEL: 0-100% LELLEL resoltio sensor: 1%Control current: 230mAShort circuit current: less than 3AOperating voltage: 3.7 VMaximum open circuit voltage: less than 4.2 VBattery Type: BL-9CScreen: lcd segment typeOperating humidity: 15% -95%Work temperature: -10-50 °Storage temperature: 0-40 °Battery life: 6 hours (no alarm)Item Weight: 250g / 8.82 oz.The size of the product: 135x75x40 mm / 5.31x2.95 x 1.57inPackage Weight: 770 g / 1.70lbPackage Dimensions: 253x210x57 mm / 9.96x8.27 x 2.24inPackage：1 x gas monitor1 x Charging Adapter ()1 x USB cable1 x Plastic case1 x User Manual

• 1. Portable monitor to detect O2, CO, H2S, LEL.
• 2. respond quickly, recognize accurately, sound, light, vibration three types of alarm indication.
• 3. With a portable plastic case, built-in sponge, no need to worry about damage on delivery.
• 4. USB powered, convenient to use.
• 5. Large LCD screen display, can be read in the dark.
• Welcome and I wish you a happy life, my friend.