sensorProbe+ Wireless Tunnel

4x sensor ports
Reduced cost of deployment
Long Range Radio (LoRa) Technology

Wireless Tunnel™ sensors, up to 4 wired sensors share 1 radio

Rapid deployment of your sensor network over large area

The sensorProbe+ Wireless Tunnel™ (SP-WT) is equipped with Semtech’s LoRa based radio technology, and utilizes the AKCP Wireless Tunnel™ communications protocol. Connect up to 4 wired sensors to a single radio. This makes for rapid deployment for a large number of sensors.

Connect up to 30 SP-WT devices to the sensorProbe+ Wireless Tunnel™ Server (SP-WTS), with 4 sensors on each that gives 120 sensors from only 30 radios. The SP-WT is powered by either 3x AAA batteries, or 5VDC USB input. Both can be used with the batteries as a failover power source. It is recommended where possible to power the SP-WT via external power supply. An optional external battery pack (SP-WT-EXTBAT) is also available for increased life of up to 10 years.


– Guaranteed message delivery
– Proprietary AKCP Wireless Tunnel™ Protocol
– Long range radio communications (up to 3km in open space)
– Low power radio for extended battery life (sensor dependent)
– Internal antenna tuned for greater signal strength
– Plugin AKCP Intelligent sensors

Wireless Tunnel™ Monitoring Solutions

SP-WT-EXTBAT (SP-WT with External Battery Pack)

Status Indication LED indication for power
LED for Radio connectivity
LED for Status
Components Manufactured using highly integrated, low power surface mount technology to ensure long term reliability.
Operating Environment Temperature : Min. -15° C – Max.50° C
Humidity: Min. 20% – Max. 80% (Non-Condensing)
MTBF 1,400,000 Hours based on field experience with sensorProbe units.
Connectivity Wireless Tunnel™ connection to sensorProbe-Wireless Tunnel Server (SP-WTS)
Inputs 1x USB for external 5VDC power and firmware updates.
1x intelligent sensor ports for connecting AKCP wired sensors
LoRa (R) Radio
Regional plans
– EU868 : 863~868Mhz
Max TX Power +14dBm
Duty Cycle 1%- US915: 903~915Mhz
Max TX Power +20dBm- AS923 : 920~925Mhz
Max TX Power +14dBm
Duty Cycle 1%- KR920 (Korea) : 922~923Mhz
Max TX Power +14dBm
Duty Cycle 1%- IL917 (Israel) : 915~917Mhz
Max TX Power +14dBm
Duty Cycle 1%
Certification FCC Part 15C, CE EN300220-2
Power External 5.5V 3A Power Adapter
AKCP External Battery Pack with 6x AAA batteries (non rechargeable)*
3x AAA Batteries (non-recharageable)
Dimension 111 (W) x 62 (H) x 87 (D)
Mounting Desktop, wall mount, DIN rail, Magnetic

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AKCPsensorProbe+ Wireless Tunnel