Watchport® Sensors
for Drop-in Networking
Environmental Monitoring Solutions
Create a Drop-in Network with sensors to monitor
critical environmental data over a wireless connection.
Overview
Watchport sensors provide a plug-and-play solution for Dropin Networking applications. Each sensor connects to Digi’s
XBee® sensor adapter (sold separately) for wireless connectivity
to sensor data over a low power ZigBee network. Sensors are
available to measure distance, proximity, temperature/humdity,
acceleration/tilt, and the presence of water. Monitoring
remote assets with Watchport sensors can preempt damage to
facilities, reduce costly maintenance and warn of threatening
environmental conditions.
Application Highlight
When used in a Drop-in Network with Digi’s ConnectPort® X
gateways, Watchport sensors can be monitored over a Wide
Area Network (WAN) connection, providing centralized
monitoring of geographically distributed sensor points. Plus,
the Python® programming engine on the ConnectPort X
provides the software tools to integrate multiple sensors and
create custom applications using sensor readings.
Watchport sensors can be used in many Drop-in Networking
applications. Monitor temperature and humidity levels in a
refrigeration unit or grain silo; detect the presence of water in
a livestock pen; activate a Watchport camera or an alarm when
an access point is encroached; or reduce energy consumption
by automatically powering down lights or other environmental
systems when inhabitants are no longer detected.
Features/Benefits
• Ideal for remote monitoring of critical
environmental data
• Plug into Digi’s XBee sensor adapter (via RJ-45
connector) for wireless ZigBee® connectivity
• No external power supply required; draws power
from XBee sensor adapter (via RJ-45 connector)
• A´ la carte product selection allows total customization
• Easy to install and configure
• Extend distance between sensor and XBee Sensor
Adapter with CAT5 UTP cable
www.digi.com
Features Comparison
FEATURES
POWER REQUIREMENTS
• Each sensor has a 6" cable lead with
RJ-45 connector (1-Wire interface)
• No external power supply required
Watchport/H Humidity/Temperature
Sensor
• Collects both relative humidity (RH)
and temperature data
• Temperature compensated RH readings
• ASCII command interface
• Maximum reading rate: 20 per second
• Temperature accuracy:
+/- 3.6º F (+/- 2º C) at -40º F to +14º F
(-40º C to -10º C) and +/- 0.9º F
(+/- 0.5º C) at +14º F to +185º F
(-10º C to +85º C)
• RH accuracy: +/- 5% at 0-90%
non-condensing; +/- 8% over 90%
• RH stability: +/- 1% RH (typical)
at 50% RH in 5 years
• Power consumption: 15 mA (normal),
1.0 mA (suspend mode)
• Maximum CAT5 UTP cable length:
500 ft (152.46 m)
Watchport/D Distance/Proximity
Sensor
• Photo-electric sensor with hardware
controlled sensitivity
• Detection range 1.6 to 4.9 ft
(0.5 to 1.5 m)
• Maximum reading rate: 3 per second
• Maximum switching frequency: 100 Hz
• Response delay: ≤5.0 ms (typical)
• Power consumption: 70 mA (max)
• Maximum CAT5 UTP cable length:
500 ft (152.46 m)
Watchport/W Water Detector
• 2 gold plated pins detect wetness
on a non-conductive surface
• Binary output with “Wet” or
“Dry”readings
• Waterproof enclosure
• Maximum reading rate: 5 per second
• Power consumption: 15 mA (normal),
1.0 mA (suspend mode)
• Maximum CAT5 UTP cable length:
1,000 ft (304.8 m)
REGULATORY
APPROVALS
•
•
•
•
•
•
•
•
ENVIRONMENTAL
• Operating temperature:
-40º F to +185º F (-40º C to +85º C)
• Relative humidity: 0% to 95%
(non-condensing)
FCC Part 15, Class B
CE
EN55022
EN55024
EN60950
UL 1950
CSA 2.2 No. 950
IEC-950
DIMENSIONS
Watchport/H, Watchport/W,
Watchport/A
• Length: 2.12 in (5.39 cm)
• Width: 1.19 in (3.02 cm)
• Height: 0.69 in (1.75 cm)
• Weight: 3.00 oz (85.05 g)
USABILITY
REQUIREMENTS
• Watchport Sensors for
Drop-in Networking must be used
with XBee Sensor Adapters (sold
separately). Please see
www.digi.com/products/wireless
dropinnetworking/ for XBee
Adapter information.
Watchport/D
• Length: 1.75 in (4.45 cm)
• Width: 0.74 in (1.88 cm)
• Height: 0.85 in (2.16 cm)
• Weight: 3.00 oz (85.05 g)
MODEL......................PART NUMBERS
Watchport Sensors for Drop-in Networking
Watchport/H (Humidity/Temperature Sensor)
Watchport/D (Distance/Proximity Sensor)
Watchport/W (Water Detector)
Watchport/A (Accelerometer)
Worldwide
70002335
70002333
70002336
70002337
XBee Sensor Adapters
XBee Sensor Adapter (802.15.4)
XBee-PRO Sensor Adapter (802.15.4)
XBee Sensor Adapter (ZNet 2.5)
XBee-PRO Sensor Adapter (ZNet 2.5)
XA-A14-CS1R
XA-A14-CS1P
XA-B14-CS1R
XA-B14-CS1P
Watchport Sensors for Drop-in Networking
must be used with XBee Sensor Adapters.
Watchport/A Accelerometer
• Dual axis accelerometer
• Measures dynamic acceleration
such as vibration or static
acceleration (gravity)
• Measures tilt to 0.1°
• Acceleration from -2g to +2g
See www.digi.com/products/wirelessdropinnetworking/
for XBee Adapter specifications.
91001426
B2/415
You can purchase with confidence knowing that Digi is always available to serve you with expert technical
support and our industry leading warranty. For detailed information visit www.digi.com/support
Digi International
Worldwide HQ
877-912-3444
952-912-3444
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www.digi.fr
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Japan
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www.digi-intl.co.jp
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+65-6213-5380
Digi International
China
+86-21-50492199
www.digi.com.cn
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www.digi.com
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