Tracks how long items such as smoke detectors, air, water and furnace filters, batteries, have been in use - 12 month maximum life
More effective than the electronic equivalent in reminding consumers when to service filters
12 Month run-out window
For room temperature use only
Easy to use and to read

Technical Details

Size (LWH): 4.4 inches, 3.5 inches, 1.3 inches
Product Details
Product Dimensions: 4.4 x 3.5 x 1.3 inches
Package Dimensions: 4.4 x 3.5 x 1.3 inches
Shipping Weight: 0.7 pounds (View shipping rates and policies)
ASIN : B007Z3S00C