BW Technologies BWC2-X BW Clip Single Gas O2 Monitor, 19.5/23.5, Yellow

Maintenance-free: no sensor or battery changes necessary.
Is Discontinued By Manufacturer ‏ : ‎ No
Product Dimensions ‏ : ‎ 24 x 24 x 24 inches; 5.29 ounces
Item model number ‏ : ‎ BWC2-X
Date First Available ‏ : ‎ March 20, 2015
Manufacturer ‏ : ‎ BW Technologies
ASIN ‏ : ‎ B00UZ1X39O
Country of Origin ‏ : ‎ Mexico