JME’s new Radio Repeater Unit allows an extension of communication between JME’s Remote Handset and the CR2 Pipeline Crawler while operating within a pipeline. The unit has two separate antennas – one for communicating with the Crawler (inside the pipe), and one for communicating with the Handset (outside the pipe). Internal circuitry forms a data-link between the two radio channels.

The handset can communicate directly with the Crawler while outside the pipe, or at the open-end of the pipe. The Repeater is used as a ‘bridge’ when there is no direct line-of-sight between the Handset and Crawler, or when operating the system in adverse weather conditions that can reduce the communication distance.

The typical operating range of the Repeater is approximately 2km outside the pipe, assuming there is a direct line-of-sight between the Handset and the Repeater. The maximum range inside the pipe is considerably greater, with no requirement for line-of-sight, the internal walls, even with curves and undulations, act as a waveguide. In situations where long-range operation is required, additional Repeaters can be installed to extend the operating distance.


  • • Improved aesthetics Improved durability
  • • Suitable for all CR2 Crawler models
  • • Improved configurability
  • • Improved battery technology and capacity
  • • High rate charge
  • • Can be used as both Radio Extender and Repeater
Dimensions 165mm x 87mm x 48mm (Excluding antennas)
Weight >1.5 kg
Environmental Operating temperature: -20°C to +60°C
Storage temperature: -30°C to +70°C
Battery Type Lithium-ion – Watt Hours: 38.9
Battery Capacity 10,500mAh
Current Consumption 100 mA full operation
Typical Battery Life 60 hours between charges (average)
Charging Voltage 4.2V @ 2.7A
RF Operating Frequency ISM 2.4GHz
Transmit Power Output Up to +20 dBm
Receiver Sensitivity 103 dBm
Operating Range Typical: 1.2km (open air)
Radio Module Agency Approvals FCC Part 15.247 – FCC ID U90-RF220 Industry Canada (IC) – Ref 7084A-RF220 CE certified – to EN300 328 V 1.8.1
FCC Notice This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interferences, and (2) this device must accept any interference received including interference that may cause undesired operation.
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