Specifications
Care@Home™ Smoke Detector User Guide
21
5.
Specifications
The following table lists the technical aspects and data about the SK2.
Table 2: Device Technical Specifications
Category
Details
Essence
Part number
ES700SK2
Power
Battery
Two 1.5V AA alkaline batteries
Approved manufacturers
GP, Energizer, Duracell
Nominal battery life
Up to two years
Voltage and current ratings
Nominal voltage: 2.4 V
Standby time current consumption (@2.4 V): 60 µA
Maximum current consumption (@2.4 V): 200 mA
Communications
Bi-directional
End-to-end bi-directional ESI protocol
Frequency
FSK modulation:
869.225 MHz (Europe)
868.3 MHz (China)
916.5 MHz (North America and Australia)
RF coverage
700 m (2,296 ft.) – open air
Encoding
32-bit ID, over 4 billion combinations
Environmental
Humidity
Up to 93% non-condensing
Operating temperatures
-10°C - 55°C (14° - 131°F)
Storage temperatures
-20ºC – 70ºC (-4ºF – 158ºF)
Physical
Dimensions (Diameter x H)
135 x 48 mm (0.44 x 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
Security and Safety
Tamper feature
Alarm triggered on tamper
Connectivity failure
Alarm functions even if gateway cannot be accessed
Device identification
Unique electronic serial number