CH2O Rilevatore di Gas con Allarme Suono e Luce Gamma 0-50ppm Risoluzione 0,01ppm
Detection gas: Formaldehyde CH2O. Repeatability: ≤±1%；Zero drift: ≤±1%. Display Technology: High brightness digital tube display. One or two switching signals can be output to drive external devices such as exhaust fans or solenoid valves.