D6 Labs
™
Engineered IoT Solutions
Wh
sker
o
TM
www.d6labs.com
Page 1
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© Copyright 2026 Digital Six Laboratories, All Right Reserved
1-844-365-8647
WB1-9-xx-MBNNNNNN-0000-xx
Whisker.Block
®
Modbus RTU - RS485
D6 Labs Whisker-Block_3qtr-View_01
General Description
This Whisker.Block
®
is a long-range, wireless Modbus RTU sensor
that can read sixteen (16) words from any group of Modbus devices
on an RS-485 network. It uses our proprietary long range wireless
communication technology to ensure reliable and robust operation.
Two power options are available: 10+ year internal battery or
external 12-24V DC power. The sensor can transmit as often as every
5 minutes on battery power, and every 30 seconds on external DC
power.
Each sensor is housed in a durable, IP67 enclosure that supports a
variety of mounting methods.
The long range, exceptional battery life, and flexible I/O
configurations of the Whisker.Block
®
make it the perfect choice for
nearly any IoT application.
Power
This Whisker.Block
®
can be powered internally using a 3.7V, 5.2A-H
LiThCl battery pack (10+ years of service life) or 8-24V DC through
Connector 1 pin 1. Select variants are equipped with an internal
5V/18V sensor power supply that can provide up to 30mA to
external sensors; this is available on pin 1 on both connectors when
battery power is used and pin 1 of connector 2 when external DC
power is used.
Range
In an unobstructed, outdoor line-of-site environment, the sensor
should be able to communicate for more than
.5 miles
assuming a
receiving antenna elevation of
10 feet
. If the receiving antenna is
raised to
20 feet
or more, the range should increase to more than
1 mile
. Range performance will degrade if the internal antenna is
used; maximum range is achieved with the external antenna.
Internal Channels
This Whisker.Block
®
is configured with
two (2)
internal channels:
V
DC
Battery Voltage
Ambient Temperature
External Connections
This Whisker.Block
®
is configured with
two (2)
external channels:
4
2
3
1
Con 2 (Left)
4
2
3
1
Con 1 (Right)
Connector
Pin
Function
Description
1
1
Vin
8-24V Input (select models)
1
2
Channel 1
Not used
1
3
Channel 2
Not used
1
4
Ground
Circuit ground
2
1
Not used
Not used
2
2
Channel 1
RS485-
2
3
Channel 2
RS485+
2
4
Ground
Circuit ground
Ordering Information
Part Number
Description
WB1-9-0D-MBNNNNNN-0000-XR
Modbus RTU, 900 MHz, 8-24V Ext DC, External Antenna
WB1-9-0D-MBNNNNNN-0000-LR
Modbus RTU, 900 MHz, 8-24V Ext DC, Internal Antenna
WB1-9-00-MBNNNNNN-0000-XR
Modbus RTU, 900 MHz, Battery powered, External Antenna
WB1-9-00-MBNNNNNN-0000-LR
Modbus RTU, 900 MHz, Battery powered, Internal Antenna
Wh
sker
o
TM
www.d6labs.com
Page 2
sales@d6labs.com
© Copyright 2026 Digital Six Laboratories, All Right Reserved
1-844-365-8647
Mechanical Drawing - Whisker.Block
®
Modbus RTU - RS485
D6 Labs Whisker.Block Product Diagram
Product Attributes
Type
Description
Series
Whisker.io
®
Features
Modbus RTU (RS-485), M8 Cable Assembly & Internal (Onboard) Temp
Sensor Type
Modbus RTU
Battery
3.7V, 5.2A-H LiSOCL
Battery Life Standard Pack
10-20 Years
DC Power
8-24V DC, 100mA max
Operating Temperature Range
-40
-
185°F
Antenna
Internal (LR) / External RPSMA (XR)
Transmission Range
1
1 mile
(typical)
Frequency Range
902-928 MHz
Internal Temperature Measurement Range
-40
-
185°F
Internal Temperature Measurement Accuracy
±
1.8°F
Sensor Sample Rate
5 Minutes(battery power) /10 Seconds(DC power)(typical)
Enclosure
Module - IP67 Case
Packaging
Box
1) Typical range: Outdoors, external antenna, line of sight, unobstructed, antenna elevation
40 feet
.
