Wearable oxygen concentration indicator/alarm meter body GOA-7H-S 1 unit

It can be used both for remote measurement using a sensor cord and for measurement by wearing it on the body. The lamp, buzzer and vibration will ensure you are alerted to any danger. Oxygen AIR can be adjusted with one touch. Specifications: Main unit Measurement range (%): 0.0 to 25.0% Quantity: 1 unit Measurement principle: Galvanic cell type Air sampling method: Diffusion type Explosion-proof performance: Intrinsically safe explosion-proof structure Ex ia IIC T3 Ga Pass number: TC22573 Dust and water proof: IP64 equivalent Indication accuracy: ±0.5% (oxygen concentration) 90% response time: Within 15 seconds (at 20°C) Display method: minimum scale 0.1% Alarm method: Buzzer, LED flashing, display illumination, vibration, automatic reset Power supply: 1 AAA alkaline battery (included for testing) Size: 48 x 37 x 105mm (including protrusions) Weight: Approx. 110g (including batteries and sensor) *excluding sensor cord Other functions: Automatic sensor check, automatic circuit operation check, battery replacement warning, radio wave and static electricity interference countermeasures * Service range of measurement: 25.1-42.0%, over 42.0% is displayed as HI