2. Product Features and Specifications
Blinking
Red Dot
Digital
Display
Test/Reset
Button
Peak Level
Button
Back
Door
Key
Holes
Slide Support for Table Top
and Direct Plug Use
Adapter
Thumb Release
Removable
AC Adapter
Cord
Recess
Power
Cord
Sounder
Alarm
9V Backup
Battery
(shown installed)
Install Backup
Battery
(as shown)
900-0113
with digital display
Both propane and natural gas are colorless and odorless. For safety
reasons, an odorant (Mercaptan) is added so that any leak can be
detected by smell. The common detection threshold for smelling the
gases is around 20% of the lower explosion limit (LEL). This can vary
greatly depending on the individuals’ sense of smell and how long they
have been exposed to either gas. The LEL of each of these gases defines
the bottom range of flammability for the gas. Your CO and Gas alarm is
calibrated to alarm before 25% of the LEL of either gas detected.
Therefore, it is possible that you may smell gas before the alarm activates.
1. Information About Carbon Monoxide
and Explosive Gas
