Features

• Monitors gas leakage even during a power failure or other lifeline failures (on models with a built-in back up power supply). Continuously monitors for 30 minutes after a power failure, then intermittently monitors for 2 days, The interval between observations depends on the number of detection points. (NV-500)
• Operated normally in a seismic qualification test equal to intensity of 7 on the Japanese earthquackes. A plastic molded case which contains the electronic circuit is hard to break and has substantially improved insulation. The case structure has been refined to increase the strength.
• Gas concentration at the time of an alarm is shown at a glance.
• Battery life can be measured by one-touch operation. (Battery life check function)
• Very easy to change the alarm set value. (Î�â�� key)
• NV-500 has extremely easy zero adjustment and span adjustment. (one-touch calibration function)
• Wide operating voltage range of 85-264V.
• NV-500 comes with zero suppression function

Features

• Monitors gas leakage even during a power failure or other lifeline failures (on models with a built-in back up power supply). Continuously monitors for 30 minutes after a power failure, then intermittently monitors for 2 days, The interval between observations depends on the number of detection points. (NV-500)
• Operated normally in a seismic qualification test equal to intensity of 7 on the Japanese earthquackes. A plastic molded case which contains the electronic circuit is hard to break and has substantially improved insulation. The case structure has been refined to increase the strength.
• Gas concentration at the time of an alarm is shown at a glance.
• Battery life can be measured by one-touch operation. (Battery life check function)
• Very easy to change the alarm set value. (Î�â�� key)
• NV-500 has extremely easy zero adjustment and span adjustment. (one-touch calibration function)
• Wide operating voltage range of 85-264V.
• NV-500 comes with zero suppression function