CH4 Rilevatore di Gas Portatile Rilevatore di Perdite di Gas Metano Allarme 10000ppm 20% LEL
(4) Resolution: 1ppm 0.1%LEL. This device can set two-level alarming value. The detector can rise the acousto-optic alarming when the detected concentration reaches the preset value. 9) Display: large screen digital LCD.