Cosmos XOS-2200 Personal H2S / O2 Monitor

Thin and lightweight design with manual backlight LCD display
Features with buzzer sound, flashing light and vibration gas alarm
5000 hours of continuous operation with a single AAA Alkaline battery
Detection Range : 0 - 30 ppm (H2S) / 0 - 25 vol% (O2)
Alarm Set : H2S - 10 ppm (first stage) / 15 ppm (second stage)
                     O2 - 19.5 vol% (first stage) / 18 vol% (second stage)
Size : W65 X D22 X H64mm (excluding protrusions)
Weight : 75g (with battery)
Country of Origin : Japan