Wearable oxygen concentration indicator/alarm meter, cordless, GOA-7H, 1 unit

It can be used for both remote measurement using a sensor cord and measurement by attaching it to the body (sensor cord sold separately). Lamps, buzzers and vibrations ensure that you are aware of any danger Dust-proof and drip-proof construction (equivalent to IP64) for safe outdoor use, and intrinsically safe explosion-proof construction (Ex ia ⅡC T3 Ga) One-touch operation for oxygen air adjustment Sensor and battery can be replaced by the user. Measurement principle/air sampling method/dimensions/weight: Galvanic battery type/diffusion type/48 (W) 37 (D) x 105 (H) mm (including protrusions)/approx. 110 g (including battery and sensor) Buzzer volume/Explosion-proof performance/Structure: Approx. 95db (at a distance of 10cm)/Intrinsically safe explosion-proof structure Ex ia ⅡC T3 Ga Approval number: TC22573/Dust-proof/water-proof structure (equivalent to IP64) Measurement range / Indication accuracy / 90% response time / Display method: 0.0 to 25.0% (service range: 25.1 to 42.0%, over 42.0% displays HI) / ±0.5% (oxygen concentration) / Within 15 seconds (at 20°C) / Minimum scale 0.1% Alarm value (initial setting) / Alarm value setting range / Alarm method: Oxygen deficiency alarm: 18.0% or less, excessive oxygen concentration alarm: OFF / Oxygen deficiency alarm: 18.0% to 19.5%, excessive oxygen concentration alarm: 23.0 to 25.0% (can be set in 0.5% increments within the range) / Buzzer, LED lamp flashing, display illumination, vibration, automatic reset type Power supply / Continuous use time / Other functions: One AAA alkaline battery (Panasonic LR03) / Approximately 4,000 hours (without alarm) / Automatic sensor check, automatic circuit operation check, battery replacement warning, radio wave and static electricity interference countermeasures Quantity: 1 unit