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 - DiscontinuedWireless Sensor System Web-Based Monitoring


Wireless Sensing, Remote Sensing, Remote Temperature Sensing | zSeries

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1 year warranty
  • Compact End Devices, 300 Foot (100 Meter) Range
  • Remote Temperature, Humidity, and Barometric Pressure Monitoring
  • Web Server or Ethernet Connectivity
  • Low Power Consumption & Battery Operated
Wireless Sensors, Transmitters, Receivers, Meters & Controllers - View related products


The zSeries has been discontinued. Please see the ZW-CM as a possible alternative or contact our Sales and Application Engineering department.

The OMEGA™ zSeries wireless sensor system provides Web-based monitoring of Temperature, Humidity, and Barometric Pressure in critical HVAC and Refrigeration applications.

The compact wireless "End Devices" mount discretely on the wall in clean rooms, laboratories, museums, computer server rooms, warehouses, and any remote facility. The wireless End Devices are powered by two AA 1.5 volt alkaline batteries (included) that are inexpensive and widely available.

The End Devices transmit up to 300 feet (without obstructions or i nterferences) to a "Coordinator" connected directly to an Ethernet network and the Internet. The wireless system complies with IEEE 802.15.4 operating at 2.4 GHz.

The Omega zSeries system let's you monitor and record Temperature, Relative Humidity, and Barometric Pressure over an Ethernet network or the Internet without any special software-just your Web Browser.

Omega offers a selection of End Devices for a variety of applications. Each End Device supports one, two, or three internal sensors. If you need an external probe for your application, check out the zED-P Series.

Each Coordinator can directly support up to thirty-two (32) End Devices. The Omega wireless Coordinators include AC adapters to operate on any voltage worldwide from 100 to 240 Vac and 50/60Hz. The zSeries Coordinator connects directly to an Ethernet Network or the Internet. Unlike an RS232 or USB device, it does not require a host computer.

The zSeries Coordinator is an independent node on the network sending and receiving data in standard TCP/IP packets. It is easily configured from a Web Browser and can be password protected. From within an Ethernet LAN or over the Internet, the user simply types the IP address (such as or an easy to remember name (such as "Warehouse 5" or "Chicago Lab") and the Coordinator serves a Web Page with the current readings.

The device can trigger an alarm if variables go above or below a set point that you determine. Your alarm can be sent by email to a single user or to a group distribution list. OMEGA Enterprise Gateway software is a free and easy program for this application.

The zSeries wireless sensor system is easy to install, simple to operate, and features Omega's award-winning iServer technology with an Embedded Web Server that requires no special software.

The zSeries system serves Active Web Pages to display real time readings and charts of temperature, humidity, and barometric pressure. You can also log data in standard data formats for use in a spreadsheet or data acquisition program such as Excel or Visual Basic. Omega offers a free and easy to use program for logging data to Excel.

The virtual chart viewed on the web page is a JAVATM Applet that records a chart over the LAN or Internet in real time. With the zSeries system there is no need to invest time and money learning a proprietary software program to log or chart the data.

Chart scales are fully adjustable on the fly. For example, the chart can display one minute, one hour, one day, one week, one month or one year. Temperature and humidity can be charted across the full span (-40 to 125°C, and 0 to 100% RH) or within any narrow range such as (20 to 30°C).

Omega offers an OPC Server software that makes it easy to integrate the zSeries wireless sensor system with many popular Data Acquisition and Automation programs offered by Omega, Wonderware, iConics, Intellution, Rockwell Automation, and National Instruments, among others.

zSeries Family

zED with Batteries TEMPERATURE
±0.5°C for 10° to 55°C(±0.9°F for 50° to 131°F)
±1°Cfor -18° to 10°C(±1.8°F for -0.4° to 50 °F)
±0.5°Cfor 0°Cto 45°C(±0.9°F for 32° to 131°F)
±1°Cfor -18° to 0°Cand 45° to 55°C
(±1.8°F for -0.4° to 32°F and 113° to 131°F)
Refer to Chart

Resolution: 0.1°C
Repeatablilty: ±0.1±C, for zED-BTH, zED-TH

±2% for 10 to 90%;
±3% for 5 to 10% and 90 to 95%;
±4% for 0 to 5% and 95 to 100%
Hysteresis: ±1% RH
Non-linearity: ±3%
Repeatability: ±0.1%
Resolution: 0.1%

Accuracy/Range: zED-BTH, zED-BT
±2 mbar for 10 mbar to 1100 mbar
(1 KPa to 110 KPa)
Resolution: 0.1 mbar

Ethernet: 10Base-T (RJ45)
Supported Protocols: TCP/IP, ARP, ICMP, DHCP, DNS, HTTP, and Telnet
LED Indicators: Network Activity, Network Link, Diagnostics, Receive and Power
Management: Device configuration and monitoring through embedded WEB server
Embedded WEB Server: Serves WEB pages ( JAVA° Applets) containing real-time data and live updated charts within definable time intervals
Power Input: 9 to 12 Vdc
Consumption: 2.5 W max
Safety Qualified ac Power Adapter (included)
Nominal Output: 9 Vdc @ 0.5 A
Input: 100 to 240 Vac, 50/60 Hz
Power Adapter Operating Temp:
0° to 40°C(32° to 104°F)
Universal ac Power Adapter
Universal ac Power Adapter

Alkaline Battery: two 1.5 Vdc, supplied
Lifetime: Estimate of 2 years with frequency of 1 reading per 2 minutes

Standard: IEEE 802.15.4, DSSS
Frequency: 2.4 GHz (2400 - 2483.5 MHz), 16 channels
Network Topology: Star Topology
Range: Up to 91 m (300 ft) without obstructions or interference

Operating Temperature (zED): -18° to 55°C(-0.4° to 131°F), 90% RH non-condensing
Operating Temperature (ZW-REC): 0° to 70°C(32° to 158°F), 90% RH non-condensing
Storage Temperature: -40° to 125°C(-40° to 257°F)

FCC: Part 15C.
CE: EMC 2004/108/EC, LVD 2006/95/EC, R&TTE 1999/5/EC, SRRC.
Software: OMEGA Enterprise Gateway

A complete wireless system requires one Receiver/Coordinator (ZW-REC) and at least one (1) End Device (zED-*) Compact-Commercial enclosure .
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Part Number/ Desc.
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Receiver/Coordinator, which can support up to 128 end devices (any zED types)
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End device unit with internal temperature sensor
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End device unit with internal temperature and humidity sensor
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End device unit with internal barometric pressure, temperature and humidity sensor
All amounts shown in USD
(1) A complete wireless system requires one Receiver/Coordinator (ZW-REC) and at least one End Device (zED-*) Compact-Commercial enclosure.
(2) Other sensor combinations available, contact our Sales Department for more information.
(3) Because of transmission frequency regulations, these products may only be used in the United States, Canada, Europe and China.

Ordering Example:  (1) ZW-REC Receiver/Coordinator, supports up to 128 end devices, $270.00

Part Number Builder

Build Your Part Number Below
Option Descriptions:

(1) Internal Sensors (only for Compact-Commercial Style End Device) select from:
-T for Temperature
-TH for Humidity + Temperature
-BTH for Barometric Pressure + Temperature + Humidity
Note: All combinations may not be valid, check spec sheet for valid part numbers.
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