AcuMesh wireless RS485 transceiver for mesh networks
5 Year Warranty on Acuvim Energy MetersCanadian Made Power MetersETSI Certification
Wireless RS485 transceiver for Modbus, DNP 3.0 and more

Wireless RS485 Transceiver
AcuMesh Wireless RS485 Network

The Acumesh Wireless RS485 connects any device with a RS485 port to form a point to multi-point mesh network. It is ideal for buildings and systems that monitor energy flow, industrial automation and campus facilities. AcuMesh transceiver eliminates the usual wires in a RS485 installation by using a flexible and simple wireless communication solution.

  • Available in both 900MHz and 868MHz frequency
  • Automatic connection without any configuration or software
  • Compatible with any protocols: Modbus RTU, Profibus, DNP 3.0 and more
  • Highly secure 128-bit Advanced Encryption Standard (AES)
  • Advance configuration available for complex network setup with free software
  • 1000 ft (305m) indoor / 4 Miles (6.5km) outdoor in a single hop
  • Each transceiver acts as an extension point for the network allowing for a longer range of communication
  • Point to multi-point communication enabled with "mesh" structure
  • Self-healing and optimizing communication pathway

AcuMesh RS485 Overview

What is a Mesh network?

AcuMesh Wireless RS485 Network

AcuMesh keeps all the advantages of a RS485 network but eliminates the wires. Each RS485 device connects directly with an AcuMesh transceiver allowing point to multippoint wireless communication with Master and Slave devices.

The AcuMesh transceiver supports all RS485 communication protocols (i.e. Modbus RTU, DNP 3.0, Profibus and more).

Diagram of how AcuMesh provides a wireless solution for RS485 connected devices in a network

Wired RS485 Serial Network

Conventional wired RS485 networks come with inherit limitations during installation. Devices are networked together in a daisy chain topology increasing the budget and lifecycle of the project. Once installed in the facility it may be difficult to upgrade or modify and sometimes it may not be possible at all without incurring hefty expenses.

Diagram of a wired RS485 network configuration

Advantages of Wireless Network:

  • Reduce network implementation cost for wired networks
  • Get a communication range of over 6,000 meters
  • Flexible network reducing infrastructure dependency
  • Simpler to maintain and upgrade once network is installed
  • Achieve faster development cyles by eliminating wires
AcuMesh wireless transceiver is capable of forming a mesh network

Please check out the FAQ section for commonly asked questions about the AcuMesh RS485 transceiver.

AcuMesh Product Synergy

Find out how AcuMesh wireless transceivers work with other products

Accuenergy provides a fully customizable wireless solution to ensure you meet your project goals. AcuMesh is the ideal companion for any Accuenergy or third-party RS485 power meter by allowing energy usage data to be delivered wirelessly to a data acquisition gateway where it can be accessed and monitored on a cloud-based server. Let us know your project requirements and we will help you select the right products from start to finish.

AcuMesh wireless RS485 network transceiver connects to Acuvim II power meter

AcuMesh Transceiver pairs well with Acuvim Power Meters, Solar Panel Inverter or any other Slave device.

Contact us to receive engineering support for your project requirement

AcuMesh Transceiver pairs well with AcuLink Data Aquisition, PLC, Solar Panel Inverter or any other Master device.

AcuMesh Wireless RS485 Features

AcuMesh Applications

AcuMesh Wireless RS485 transcevier can be used in such applications as building automation network

AcuMesh transceivers can be used in any building, facility, commericial or industrial network. Here are some examples:

  • Retrofit power & energy meters in existing buildings
  • Campus and commercial facilities
  • Lighting control system
  • Multi-tenant kWh billing and submeter
  • HVAC and security systems
  • Industrial facilities power meter management
  • Industrial automation
  • Building automation network

Protocol Compatibility

AcuMesh is compatible with all RS485 protocols - Modbus, Profisbus, DNP 3.0 and more

AcuMesh wireless RS485 transceiver are protocol independent. Connect any Master or Slave device to the AcuMesh RS485 traciever to enable wireless communication. AcuMesh tranceiver will transmit and receive any protocol wirelessly.

  • Modbus
  • Profibus
  • DNP 3.0
  • And more

All Accuenergy Power Meters can directly connect with AcuMesh transceiver and is designed to plug-in to an Acuvim II power meter.

Self-Healing Mesh Network

Engineer monitoring self-healing mesh network

The network is more resilient against threats, crisis or harm. It will improve security and network reliability by being able to locate a problem, protect the system and heal any damage that destroys data integrity.

Machine-to-Machine Communication Comparison

Relies on existing IT network rangeNoNoYes
Runs through wallsYesNoYes
Range (Line of Sight)6,437 Meters20 Meters100 Meters
Mesh StructureYesYesNo

AcuMesh Wireless Transceiver


AcuMesh wireless RS485 transceiver offers robust features

Part NumberAcuMesh-K Wireless KitAcuMesh-L-868 Wireless KitAcuMesh-L-900 Wireless Kit
Compatible Countries and Regions North and South America, Oceania, part of Asia. International Telecommunication Union Region 2 and 3Europe, Middle East, Africa, part of Asia. International Telecommunication Union Region 1 North and South America, Oceania, part of Asia. International Telecommunication Union Region 2 and 3
ConnectionRS485 screw terminal, USB mini-B (power supply and/or configuration)
Serial Baud Rate Range9600 - 230400
RF Properties
Operating Frequency Band902MHz to 928MHz (900Mhz ISM Band)863MHz to 870MHz Configurable band902MHz to 928MHz (900Mhz ISM Band)
Number of Channels6430 channels, Listen Before Talk (LBT) + Automatic Frequency Agility (AFA)64
Spread SpectrumFrequency hoppingFrequency hopping
Transmit Power Output24 dBm (250 mW)14 dBm (50 mW)24 dBm (250 mW)
Receiver Sensitivity-101 dBm
Indoor/Urban RangeUp to 1000' (305 m)Up to 275 ft (84 m)Up to 1000' (305 m)
Outdoor RF line-of-sight RangeUp to 4 miles (6.5 km) with 2.1 dB dipole antennasUp to 2.6 miles (4.2km) with 2.1 dBi antennaUp to 4 miles (6.5 km) with 2.1 dB dipole antennas
RF Data RateUp to 200 kb/sUp to 80 kb/sUp to 200 kb/s
Whip antenna that connects to the AcuMesh transceiver.
Three meter antenna extension with adhesive cup base.

Note: All AcuMesh Wireless RS485 Transceivers include a whip antenna and Power supply
Antenna Impedance50 ohms unbalanced
Networking and Security
Supported Network TopologiesMesh, point-to-point, point-to-multipoint, peer-to-peer
Addressing OptionsPersonal Area Network Identifier (PAN ID) and 64-bit MAC add addresses
Encryption128 bit Encryption Standard (AES)
Power RequirementsPower supply includedPower supply included in kit
Power Supply100-240Vac 47-63Hz Wall Plug100-240Vac 50/60Hz Din-Rail Mount
Receive Current0.54W
Transmit Current1.26W
Physical Properties
Size4.5 x 2.75 x 1.125 in. (11.4 x 7.0 x 2.9 cm)3.54 x 2.1 x 1.26 inch (9 x 5.3 x 3.2 cm)
MountingSurface mountDin-Rail or Wall Mount
IncludesTransceiver, Antenna, Power Supply
CertificationUnited States (FCC Part 15.247)ETSI (Europe)United States (FCC Part 15.247)
Industry Canada (IC)Industry Canada (IC)
Australia C-TickAustralia C-Tick