Specifications
24
Care@Home™ Smoke Detector User Guide
6.
Specifications
Below are tables that list the technical specifications for the SK2 and the approved batteries to use for
the SK2.
Table 2 below lists the technical aspects and data about the SK2.
Table 2: Device Technical Specifications
Category
Specifications
Requirements
Electrical
Power Supply
Two 1.5V AA Alkaline batteries, manufactured by
Energizer (EN91/LR6/AM3)
Voltage and current ratings
Nominal voltage: 2.4V
Standby time current consumption (@2.4V): 60µA
Maximum current consumption (@2.4V): 200mA
Nominal Battery Life
Two years
NOTE:
Nominal battery life is computed according to
ESI's standard usage parameters.
System Compatibility
Care@Home
™
Wireless
Bi-directional
End-to-End bi-directional ESI protocol
Modulation and Frequency
FSK modulation, 868.3 MHz in Europe and 916.5MHz in
America (factory configured)
Nominal Radio Coverage
700 m (2296 ft.) – Open Air Nominal
NOTE:
Nominal RF coverage is tested over LOS free
space in a low interference environment.
Encoding
32-bit ID, over 4 billion combinations
Environmental
Humidity
Up to 85% non-condensing
Operating Ambient Temp.
range
-0° ~ 49° C (32° - 120° F) batteries dependent
Physical
Dimensions
Diameter 135 mm (0.44 ft.); Height: 48 mm (0.16 ft.)
(including ceiling/wall mount)
Weight
214 g (0.47 lb.) (including batteries)
Color
Glossy White
Mounting
Standard ESI 2-screws ceiling/wall mount
Alarm
A piezoelectric buzzer of 85 dB at 3 m
