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BT Home Monitor ~ Issue 5 ~ 1st Edition ~ 26_01_ 04 ~ 5725
Size: 250 x 190 x 44mm
(9
13
/16 x 7
1
/2 x 1
3
/4in)
Weight: 905g (2 lb) excluding batteries
Colour: Stone
MAGNETIC CONTACT
Frequency
(MHz): 868.95
Transmitter’s
ID Code: 24-bit digital word, over 16 million
combinations, pulse width
modulation
Overall Message
Length: 36 bits
Message
Repetition: Repetitive transmission
(once every 3 minutes)
Supervision: Signalling at 15-minute intervals
Response to
Tamper Event: Tamper report every 3 minutes
(until the tamper switch is
restored)
Battery: 3V Lithium Type CR-2 or
equivalent
Battery Life
Expectancy: 2
1
/2 years (for typical use)
Battery
Supervision: Automatic transmission of battery
condition data as part of any
status report
Operating
Temperature: 0°C to 49°C (32°F to 120°F)
Dimensions: 81 x 22 x 23.5mm
Weight: Transmitter – 34g (1.2oz)
excluding battery,
Magnet – 13g (0.45oz)
MOVEMENT DETECTOR
Maximum
Coverage
Range: 12 x 12m (40x 40ft) / 90°
Pet Tolerance: Animals up to 36 kg (80lb)
Battery: 3V Lithium Type CR-2 or
equivalent
Nominal Battery
Capacity: 750mA
Standby
Current Drain: 0.015mA
Transmit
Current Drain: 20mA (including LED)
Battery Life
Expectancy: 2
1
/2 years (for typical use)
Battery
Supervision: Automatic reporting of battery
status with each alarm and with
periodic supervision message
Alarm Period: 3 seconds
Visual
Indications: LED lights for 3 seconds upon
transmission of alarm and tamper
messages and upon each motion
detection in the walk test mode
LED flashes during the power-up
stabilisation period, or after
pressing tamper switch
LED does not flash upon
transmission of supervision
messages
Wireless
Frequency
(MHz): 868.95
Transmission
Sequence: 3 data bursts at variable intervals
within 3 seconds
Encoding: 24-bit ID, over 16 million possible
combinations
Total Message
Length: 36 bits
Tamper Alert: Reported when a tamper event
occurs and in any subsequent
message, until the tamper switch
is pressed
Supervision
Message: Once every 60 minutes
Height: Up to 2.4 m (8ft)
Installation
Options: Flat surface or corner
RFI Protection: >30 V/m up to 1000 MHz
65
SECTION 8