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ALTA Ethernet Gateway

Part #
Region | Frequency
Not Selected - * Region Required
Product Variations

Standard (Generation 1) Products


The MonnitLink™ Ethernet gateway allows your Monnit Wireless Sensors to communicate with the iMonnit™ Online Wireless Sensor Monitoring and Notification System without the need for a PC. Simply plug this device into any open network port with internet connection and it will automatically connect with our online servers. The device will buffer up to 16,000 sensor data messages in on-board memory in the event of an internet connection interruption. When internet communication is re-established the sensor data will download to the iMonnit online system.

The Power-Over-Ethernet option features modified gateway hardware allowing it to be powered through the Ethernet port. Note: This option includes gateway modification only and does not include an Ethernet power injector.

Explore ALTA Standout Features

Power Options - Power Over Ethernet Description:
Device will accept power over Ethernet line (Ethernet power injector not included)
Enclosure - Larger JB-55 Enclosure Description:
Larger JB-55 Enclosure


  • AC power supply (PoE version also available)
  • Existing Internet connection required
  • No PC required for operation
  • Real time TCP interface
  • SNMP poll and trap interface
  • MODBUS TCP interface
  • FCC, IC and CE certified

  * Actual range may vary depending on environment.

In the Box

  • Ethernet Gateway
  • High Gain Antenna
  • Power Supply
  • Ethernet Cable
  • Ethernet Gateway Quick Start Guide

Ethernet Gateway Specifications

Dimension 139.85 x 101.75 x 34.95 mm
Storage Temperature: -20 to +85 °C (-4 to 185 °F)
Enclosure Material ABS plastic
LED Lights H/W status, iMonnit connection status, sensor data activity
Antenna Type SMA: 5.0 dBi Gain
Operating Temperature -10 to +70 °C (14 to +158 °F)
Device Memory 16,000 sensor messages (Sensor messages will be stored in the event of Internet outage and transferred when connection is restored)
Hardware 10/100 Ethernet Controller
IEEE Standard Compliance 802.3-2002
Operation Full- and Half-Duplex
Cross-Over Correction Automatic MDI/MDI-X
Addressing Pre-programmed MAC Address
Host Address t1.sensorsgateway.com
Default Port 3000
Protocols Supported UDP, DHCP, TCP, SNMP, Modbus
Cable Connector Cat 5
Power Supply 5.5 V AC adapter
Power-Over-Ethernet option requires standard PoE (802.3AF) Class 1 capable power injector (not included)

ALTA 900 MHz Specifications

Operating Frequency 900 MHz Operating Frequency
Certifications Complies with Part 15 of the FCC Rules. (FCC ID: ZTL-G2SC1)
Complies with Industry Canada standards. (IC: 9794A-G2SC1)
Device Range Device Range Up to 1,200 ft. non-line-of-sight, wireless device range*
Security Encrypt-RF® (Diffie-Hellman Key Exchange + AES-128 CBC)

Suggested Application Uses for This Sensor

  • Transmits sensor data to the iMonnit online sensor monitoring portal
  • Commercial monitoring applications
  • Facilities monitoring
  • Small business monitoring
  • Large business monitoring