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NexSens MAST Wireless Telemetry Systems

NexSens MAST Wireless Telemetry Systems


This fully pre-configured system utilizes cellular, radio, or satellite telemetry and solar charging to create a truly plug-and-play data collection and sensor interface platform.


  • Arrives fully assembled, tested, and operational for quick & portable field installations
  • Self-charging system with built-in 8.5 A-Hr battery for reliable extended deployments
  • System easily threads to pre-installed 2" NPT pipe using include female coupling
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Why Buy From Fondriest?


The NexSens MAST systems integrate cellular, radio or Iridium satellite telemetry to create a truly plug-and-play data collection and sensor interface platform. The system includes a NexSens iSIC data logger, antenna, 8.5 A-Hr 12 VDC battery and 20-watt solar power kit - all in a compact, pre-configured package. Simply thread the system to any 2" NPT male pipe thread, connect the solar panel & battery, wire the sensors, and setup a project using iChart software - it's that simple!

The integrated system arrives ready for deployment. With the data logger and electronics housed in a heavy-duty fiberglass NEMA 4x enclosure, the system is designed to provide reliable performance in harsh outdoor conditions. Pre-mounted on a 2 ft long, 2” NPT aluminum pole, the telemetry system is easily threaded on to any pre-installed 2” NPT pipe via female coupling.

The iSIC data logger can support up to 8 analog inputs and 4 digital inputs for multi-sensor data logging. If more sensors are required, digital and analog expansions are available. All sensors are cabled though Sealcon gland fittings for protection in any weather. Designed for remote monitoring applications, these mounted telemetry systems go above and beyond in data acquisition and management. Each logger has the capacity to store approximately 500,000 data points. The 20-watt solar panel recharges the internal battery for continuous, unattended operation.

NexSens MAST telemetry systems transmit their data through iChart, a Windows-based software program designed to remotely interface with the internal iSIC data logger.

3100-MAST – Cellular Telemetry

The NexSens 3100-MAST telemetry system transmits and receives data through its integrated cellular modem and a high-gain cellular antenna. The factory-activated modem can be configured for any of the major cellular networks, including Verizon, AT&T and Sprint.

4100-MAST – Radio Telemetry

The 4100-MAST telemetry system includes a built-in radio modem for license-free data transmission. The NexSens radio telemetry systems are able to send and receive data from any base station within 5 miles line-of-sight, with an extended range if repeaters are used. Radio base station options include radio-to-cellular, radio-to-landline phone, radio-to-Ethernet, and radio-to-PC. Radio transmissions are over a 902-928 MHz frequency range.

6100-MAST– Iridium Satellite Telemetry

The 6100-MAST telemetry system allows data to be reliably transmitted to and received from anywhere in the world. This system features an integrated satellite modem and a high gain antenna for wireless data transmission through the Iridium satellite network.

Notable Specifications:
  • Analog Inputs: (4) differential or (8) single-ended, additional (4) differential or (8) single-ended optional, 0-2.5 V auto range, 12-bit resolution
  • Analog Outputs: (1) 12-bit channel, 0-2.5 V programmable
  • Power Outputs: (1) 12 V 250 mA configurable switch, (1) 5 V 50 mA analog excitation voltage, (1) 12 V output, fused from battery
  • Pulse Counters: (1) tipping bucket counter, max rate: 10 Hz
  • Digital I/O Ports: (2) standard generic I/O ports
  • 1-Wire Interface: (1) 1-wire temperature sensor port
  • SDI-12 Interface: (1) SDI-12 port
  • RS-485 Interface: (1) RS-485 port
  • RS-232 Interface: (3) RS-232 sensor ports, (3) additional optional
  • Host Interface: (1) RS-232 or (1) RS-485 port configurable
  • Supported Serial Communication Protocols: NMEA 0183 or Modbus RTU
  • Internal Memory: 2 MB Flash memory, over 500,000 data points minimum
  • Power Requirements: Voltage: 10.7 to 16 VDC
  • Typical Current Draw: Data Logger: 2.5 mA sleep, 10 mA processing, 36 mA analog measurement; Cellular Modem: 350 mA receive/transmit typical, 104 mA idle; Radio Modem: 86 mA receive, 500 mA transmit, 21 mA idle,< 1 mA power off; Wi-Fi Modem: 92mA continuous; Ethernet Modem: 120mA transmit/receive, 82mA idle; Satellite Modem: 550-850mA transmit, 80mA standby, 30uA sleep
  • Battery: 12 V 8.5 A-Hr battery, internal
  • Temperature Range: -20 to +70 C
  • Dimensions: NEMA 4X Enclosure: 12" x 8.5" x 6.95"
  • Compatible Sensors: 4-20 mA sensors, 0-2.5 V sensors, SDI-12 sensors, RS-232 sensors, RS-485 sensors, Modbus RTU sensors, NMEA 0183 sensors, 1-Wire temperature sensors, Thermistor sensors, Tipping bucket rain gauges
  • Cellular Protocol: GSM/GPRS, EDGE, CDMA
  • Supported Cellular Carriers: AT&T, Verizon, Sprint
  • Radio Frequency Range: 902-928 MHz
  • Radio Communication Range: 40 miles line of sight, extended range with repeaters
  • Satellite Frequency Range: 1616-1626.5 MHz
What's Included:
  • (1) iSIC data logger with wireless telemetry
  • (1) 20-watt solar power kit
  • (1) High gain antenna with aluminum angle bracket
  • (1) 2' RF cable, N-style connectors
  • (1) Pole/wall mounting kit
  • (1) 2" NPT aluminum Pole, 24" length
  • (1) 2" NPT PVC pipe cap
  • (1) 2" NPT aluminum female pipe coupling
Image Part # Product Description Price Stock Order
NexSens MAST Wireless Telemetry Systems 3100-MAST Mast-mounted 3100-iSIC data logging system with cellular modem telemetry & solar charging kit Usually ships in 3-5 days
NexSens MAST Wireless Telemetry Systems 4100-MAST Mast-mounted 4100-iSIC data logging system with spread spectrum radio telemetry & solar charging kit
Usually ships in 3-5 days
NexSens MAST Wireless Telemetry Systems 6100-MAST Mast-mounted 6100-iSIC data logging system with Iridium satellite telemetry & solar charging kit
Usually ships in 3-5 days
Image Part # Product Description Price Stock Order
NexSens A38 Ground Kit A38 Ground kit
Usually ships in 3-5 days
NexSens A38-P Pipe Attachment Ground Kit A38-P Ground kit, pipe attachment
Usually ships in 3-5 days
NexSens iSIC Data Logger Digital Expansion Digital-EXP iSIC digital expansion, 3 additional RS-232 inputs
Usually ships in 3-5 days
NexSens iSIC Data Logger Analog Expansion Analog-EXP iSIC analog expansion, 8 additional analog inputs
Usually ships in 3-5 days
NexSens iChart 6 Software 1001 iChart 6 software, licensed per computer Usually ships in 3-5 days

Questions & Answers

| Ask a Question
How far away can I mount the solar panel from the data logger?
The 3100-MAST system includes an integrated solar panel and regulator which connects to the data logger through an Amphenol connector. The cable on the solar panel can be extended 15 feet without modification.
Does the data logger run off the solar panel? What happens on cloudy days?
The data logger is powered by an internal 8.5 A-Hr sealed lead acid battery, which is in turn charged by the solar panel. The systems are generally configured with enough power to continuously run for up to a week without sunlight.
How close to my NexSens base does the radio MAST system have to be?
The 4100-MAST has a Radio Communication Range of approximately 5 miles line-of-sight. An extended range is available with repeater systems.
What radio base station options do I have?
Radio base station options include radio-to-cellular, radio-to-landline phone, radio-to-Ethernet, and radio-to-PC.
What is a repeater system?
A repeater system consists of a radio telemetry system configured specifically for repeating (collecting and rebroadcasting) data to a base station when the distance is too great to transmit directly. Any radio telemetry system in a network can be configured as a repeater if needed.
What is the satellite modem Frequency Range?
The 6100-MAST has a Satellite Modem Frequency Range of 1616-1626.5 MHz.
Does the satellite telemetry cost me extra after the initial purchase? (i.e. like a cellular account)
Yes, the 6100-MAST system includes an integrated Iridium satellite modem/antenna and will incur monthly costs similar to a cellular account. An Iridium SBD account will need to be setup with an Iridium provider. A list of providers can be found at under the category "Data Services".
What is the difference between the AVSS and the MAST iSIC systems?
Both AVSS and MAST telemetry systems feature an iSIC data logger. The MAST system includes a 8.5 A-Hr battery and a 20-watt solar power kit. The AVSS system includes a 26 A-Hr battery and is recommended for use with a 30-watt solar panel. The AVSS telemetry system has a larger stainless steel enclosure, while the MAST systems come pre-mounted on a 2" NPT aluminum pipe.
Does Fondriest provide the cellular service for the 3100-MAST?
Through NexSens Technology, Fondriest can offer cellular accounts to the end user at competitive rates. Contact an applications engineer for pricing and additional information on this option.

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