ACR Electronics
Quick Start Guide
SM-3
LIFEBUOY
SELF-IGNITING LIGHT
P R O D U C T N o . 3 9 4 7
N o . D e P R O D U I T 3 9 4 7
Specifications
ESPECIFICACIONES / SPÉCIFICATIONS
Dimensions
9.9” (253 mm) length
2.2” (56 mm) diameter
Weight
0.66 lbs (300g) – Light excluding
batteries and bracket
0.71 lbs (330g) – Light including
batteries (excluding bracket)
0.90 lbs (406g) – Light including
batteries and bracket
Modules (1)
Completely sealed electronics
Flashing Rate
50-70 times per minute
Flashing Light
Intensity
Minimum of 3 candelas per flash in all
directions of upper hemisphere
Operational Life
40 hours over 3 cd at 30°C (86°F)
24 hours over 3 cd at -1°C (30°F)
Batteries
2 AA Lithium Batteries (L91) / User
Replaceable (Not Included)
Material
UV resistant polycarbonate
Activation
Automatic gravity switch
Operation
Throw SM-3 overboard or turn upright
and strobe light will activate
Lamp
Ultra-Bright LED
Bracket
UV resistant polycarbonate (same
mounting hole pattern as previous
SM-2 model for easy retrofit)
Approvals
USCG / MED / SOLAS
Warranty
1 year
Recommended
Battery
Replacement
Interval
1 Year
W
A
R
N
I
N
G
The SM-3 Automatic Crew-Overboard Light is tested and ap-
proved using 2 Energizer L91 Lithium AA (Lithium/Iron Disulfide
[Li/FeS
2
] - 1.5 volts nominal voltage) batteries. While the light will
function with AA Alkaline batteries, it WILL NOT meet the regula-
tory standards to which it has been approved when AA Alkaline
batteries are installed. Only Energizer L91 Lithium AA batteries or
AA Lithium batteries with the same chemistry/voltage combination
should be used.
