HOBO® Data Node, Temperature/RH (ZW-003)
The HOBO ZW-003 data node is configured with an integrated temperature/RH sensor. This
node has routing capability in the ZW wireless network when initially powered with an AC
adapter. Refer to the
HOBO ZW Series Wireless Network Quick Start Guide
for information on
how to set up this node.
Specifications
Radio power
1.6 mW (2 dBm)
Transmission range
Approx. 100 m (328 ft), depending on obstructions or interference
Wireless data standard
IEEE 802.15.4, 2.4 GHz brand
Measurement range
Temperature: -20 to 50°C (-4 to 122°F) when battery powered, -20 to 70°C (-4
to 158°F) when line powered
RH: 5% to 95% non-condensing
Accuracy
Temperature: ±0.21°C over 0 to 50°C (±0.38°F over 32 to 122°F) when battery
powered, ±0.54°C typical over 0 to 50°C (±0.97°F over 32° to 122°F) when line
powered*; see Plot A on reverse side
RH: ± 2.5 % from 10% to 90% typical to a maximum of ±3.5% including
hysteresis at 25°C (77°F); below 10% and above 90% ±5% typical
Resolution
Temperature: 0.02°C @ 25°C (0.04°F @ 77°F)
RH: 0.05%
Response time
Temperature: 5 minutes in air moving 1 m/sec (3.3 ft/sec)
RH 10 minutes in air moving 1 m/sec (3.3 ft/sec) with protective cap
Stability (drift)
Temperature: < 0.1°C (0.18°F) per year
RH: <1% per year typical
Operating range
Temperature: -20 to 50°C (-4 to 122°F) when battery powered, -20 to 70°C (-4
to 158°F) when line powered
RH: 5% to 95% non-condensing
Operating RH
5% to 95% non-condensing
Time accuracy
± 1 minute per month at 25°C (77°F)
Memory capacity
128K (approximately 4,000 measurements)
Power options
Data mode: battery powered (3 AAA alkaline batteries); 1-year battery life at
15-minute logging interval
Data/router mode: AC power adapter (input: 100–240 V at 50/60 Hz 0.20 A
output: 6 VDC at 0.5 A), batteries as backup power
Case material
ABS
Dimensions
96.5 x 108 x 28 mm (3.8 x 4.25 x 1.1 in.)
Weight (with batteries)
138 g (4.87 oz)
The CE Marking identifies this product as complying with all relevant
directives in the European Union (EU).
See reverse side
*
A line-powered ZW-003 data node has a broader accuracy specification because the radio is always on, thereby heating
the temperature sensor. The impact on accuracy varies depending on the environmental conditions where the device is
located. A line-powered ZW-003 data node cannot be NIST-calibrated because the environment is not known prior to
deployment.
HOBO Data Node (ZW-003)
Included Items:
•
AC adapter (AC-ZW-1)
•
3 AAA batteries
•
1 locking screw
•
Hook & loop tape
•
Adhesive label
•
Bracket kit (ZW-BRACKET)
Status LEDs
Locking screw hole
Temperature/RH
sensor
Battery compartment cover/case mount
Reset button
External power jack
for AC adapter
(AC-ZW-1)
