Cosmos XO-2200 Personal Oxygen 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 - 25 vol%
Alarm Set : 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