Ei Electronics Ei208 Series Instructions Manual page 26

Self Diagnostics : Horn beep and amber fault light flashes twice a second every
50 seconds if a sensor fault is found.
Tamperproof : Available
RF Interconnect : Available with RF upgradeable Alarms and RF module only.
CO Alarm Memory: An Alarm will indicate if it has been in alarm previously by
flashing the red light. (The Display Models will also display the level of CO in 'ppm').
The number of flashes per minute will indicate the range of CO detected and will
last for 24 hours. The memory can also be recalled by pressing and holding the
test button down. The memory will be erased by holding the button down for over
12 seconds.
Low Battery Indication: Amber and green light flashes once every 50 seconds
with simultaneous alarm beep. (Display Models will also display the "Battery Status"
icon on the LCD screen).
Fault Indication: Amber light flashes twice per second every 50 seconds with
simultaneous alarm beep. (Display Models will also display the "Replace Unit" on
the LCD screen).
End of Life Indication: Amber light flashes twice per second every 50 seconds
(Display Models will also display the "Replace Unit" on the LCD screen).
Dimensions :
Weight :
120mm x 105mm x 40mm
185g (Ei207) 178g (Ei208)
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