NexSens AVSS Wireless Telemetry Systems

NexSens AVSS Wireless Telemetry Systems


These fully pre-configured systems utilize cellular, radio, or satellite telemetry with a locking stainless steel enclosure and larger battery for vandal-prone or power demanding applications.


  • Arrives fully assembled, tested, and operational for quick field installations
  • Includes 26 A-Hr battery with optional 30-watt solar panel kit for unattended deployments
  • Locking stainless enclosure can easily be pole or wall mounted with optional unistrut kit
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Why Buy From Fondriest?


The NexSens AVSS systems offer a pre-configured telemetry system with a data logger and power source in a durable, stainless steel casing. These systems offer a choice of telemetry options between cellular, radio, and Iridium satellite telemetry. Each telemetry system integrates a NexSens iSIC data logger, high gain antenna and 26 A-Hr sealed lead battery - all in a secure, locking stainless steel enclosure. The system is designed for use with the A23 30-watt solar panel and can easily be pole or wall mounted using the A56 unistrut kit.

This NEMA 4x stainless steel enclosure goes a step above and beyond the weather-resistance of the standard iSIC by providing additional protection from the elements, custom-built triangle locks with optional padlock support, and expanded battery power. The included iSIC datalogger supports up to 8 analog inputs and 4 digital inputs for multi-sensor data logging. The integrated system offers sealed sensor connections, corrosion-resistant stainless steel hardware, and built-in lightning protection to ensure reliable performance in the harshest outdoor conditions. Grounding kits are available for protection against static electricity, and can be attached to existing grounded structures.

NexSens AVSS telemetry systems are commanded through iChart, a Windows-based software program that can remotely interface with the internal iSIC data logger.

3100-AVSS – Cellular Telemetry

The 3100-AVSS telemetry system utilizes cellular telemetry to send and receive data. This system includes a factory-activated cellular modem and a high-gain cellular antenna. The NexSens cellular telemetry systems can be configured for any of the major cellular networks, including Verizon, AT&T and Sprint.

4100-AVSS – Radio Telemetry

The 4100-AVSS radio telemetry system incorporates a built-in radio modem for license-free data transmission over a 900 Mhz radio frequency to a nearby NexSens base station. Radio base station options include radio-to-cellular, radio-to-landline phone, radio-to-Ethernet, and radio-to-PC.

6100-AVSS – Iridium Satellite Telemetry

The 6100-AVSS telemetry system features a factory-activated Iridium satellite modem and a high gain satellite antenna. The design of the Iridium satellite network allows data to be reliably transmitted anywhere in the world.

3200-AVSS – Radio to Cellular Telemetry

The 3200-AVSS radio-to-cellular telemetry system integrates a spread spectrum radio and cellular modem for communicating with a radio network of iSIC data loggers and transmitting all data through a single cellular data account. As with the 3100 models, the system can be configured for any major cellular 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 28 A-Hr battery, internal
  • Temperature Range: -20 to +70 C
  • Dimensions: Stainless Steel Enclosure: 24" x 16" x 8"
  • 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) Stainless steel enclosure, 24" x 16" x 8"
  • (1) Battery, 26 A-Hr
  • (1) MS2 to flying lead power cable
  • (1) High gain antenna
  • (1) 2' RF cable, N-style connectors
Image Part # Product Description Price Stock Order
NexSens AVSS Wireless Telemetry Systems 3100-AVSS AVSS stainless steel 3100-iSIC data logging system with cellular modem telemetry Usually ships in 3-5 days
NexSens AVSS Wireless Telemetry Systems 4100-AVSS AVSS stainless steel 4100-iSIC data logging system with spread spectrum radio telemetry
Usually ships in 3-5 days
NexSens AVSS Wireless Telemetry Systems 6100-AVSS AVSS stainless steel 6100-iSIC data logging system with Iridium satellite telemetry
Usually ships in 3-5 days
NexSens AVSS Wireless Telemetry Systems 3200-AVSS AVSS stainless steel 3200-iSIC data logging system with radio-to-cellular telemetry
Usually ships in 3-5 days
Image Part # Product Description Price Stock Order
NexSens A56 AVSS Unistrut Mounting Kit A56 Unistrut mounting kit for AVSS enclosure
Usually ships in 3-5 days
NexSens A23 30-Watt Solar Panel Kit A23 30-watt solar panel kit for iSIC data loggers, 15' cable
Usually ships in 3-5 days
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
Is the enclosure NEMA 4X rated?
Yes, the AVSS stainless steel container is NEMA 4X rated.
How many analog inputs do the AVSS telemetry systems accept?
The NexSens AVSS telemetry systems each feature 4 differential or 8 single-ended analog inputs. An additional 4 differential or 8 single-ended inputs are available with the iSIC analog expansion (Analog-EXP) under the Accessories tab.
Can I mount the AVSS telemetry system?
Yes, any of the AVSS telemetry systems can easily be pole or wall mounted using the A56 unistrut kit.
If I had sensors connected to my old 4100-iSIC, can I just switch and connect them to my new 6100-AVSS?
Yes, both systems use the iSIC data logger, which is compatible with multiple outputs, including: 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 and tipping bucket rain gauges.
Can I use my current wireless provider?
The NexSens 3100-AVSS is supported by AT&T, Verizon, and Sprint in the US. A modem and antenna are included in the cellular telemetry system, but the end user will need to setup an unrestricted, mobile-terminated data account with static IP address for the system to function properly.
What is the radio frequency range of the 3200-AVSS or 4100-AVSS radio telemetry systems?
Both the 4100-AVSS and the 3200-AVSS have a Radio Frequency Range of 902-928 MHz.
How quickly can the radio-telemetry AVSS systems transfer data?
The NexSens AVSS radio telemetry systems have a Radio Data Transfer Rate of 115.2 Kbps. The receiving station must be within approximately 5 miles line-of-sight depending on the antenna.

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