Appendices
Installation, Operation & Maintenance of the Wireless Sensing Family
31
A.2:
Resident Sensor Specifications
Networking and system Configuration
Communications Network
Multi-hop, cluster tree wireless sensor network
Number of Communications
Channels:
Up to four
Multi-hops (Store and Forward)
Up to 15 hops
Network Robustness
Self-healing, adaptive
Temperature measurement Rate
per RS
Remotely programmable from 2 min up to 255
min (default 10 min)
Certifications & Compliances
FCC,CE, WHO, RoHS, EN 12830, EN/UL 60950
UHF Network
Operating Frequency
433 MHz ISM band.
Maximum rated output power
Less than 0 dBm; Matching into 50 Ω
Impedance.
Effective radiated power
Less than 0 dBm
RF Read Range
Up to 500 m per hop in free space
PHYSICAL AND ENVIRONMENTAL
Dimensions:
100 mm x 63 mm x 22 mm
Weight:
70 g
Color:
Grey
Power
DC power input
2 AAA batteries (not included)
Measurement specifications
Maximum measurement Range
Temperature: -35ºC to +65ºC
Relative Humidity: 35% to 100%
(from 0ºC to +60ºC)
Accumulated Operation Time
Over 400 days if connected to the WL network
at 0ºC
Temperature Measurement
Accuracy
±0.5ºC (in the range of -10ºC to +50 ºC)
±0.8ºC (in the range of -35ºC to -10ºC & 50ºC
to +60ºC)
Temperature Resolution
0.1 ºC
Relative Humidity measurement
accuracy
±5%
Relative Humidity Resolution
1%
Memory Capacity
2700 measurement points of each temperature
and relative humidity
Storage Conditions
-20 ºC to +65ºC
Maximum continues temperature
operation range
-20ºC to +60ºC
Special AAA batteries are required for below -20
Celsius operation
