SGT is a single disposable detector. (SGT-P is replaceable) It operates continuously for two years even without replacement of the battery or gas sensor in order to protect workers from oxygen deficiency or toxic gases. It measures a gas continuously and displays its concentration and raises an alarm when a risk occurs. 

Features:

• Disposable type(no sensor or battery change)
• Operates continuously for two years
• Excellent water / dust proof structure
• Automatic checking of the sensor trouble
• High performance audible and vibrating alarm
• Automatic logging of 30EA events
• Easy configuration and data  management through IR  Link
• Easy calibration through Docking Station

Quick specs: 

• Sensor type: Electrochemical
• 90dB at 10cm Audible alarm
• Red Flashing LEDs warning lights
• Rubber enclosure housing
• Size and weight: 54x91x32mm / 93g * toxic 104g *O2
• operating life time 24 months based on 2 minutes alarm per day