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      1. Gri Instrument Gri Instrument
        Gri Instrument Gas detector Excellent Manufacturer

        WASP-D1 Portable Diffusion Single Gas Detector

        1)Detecting gas: CO,H2,H2S,NH3.CH2O ect.  Gas customizable.2)Small size, light weight, easy to carry3)High accuracy, short response time, wide measurement range4)Large-screen color LCD graphic display, more comfortable and humane5)English menu display6)USB rechargeable lithium battery, long lif...

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