ZW-ED-Series

Supported Applications

The Omega ZW-ED Series is a rugged, high-performance wireless sensor and transmitter system designed for web-based monitoring of temperature, humidity, and barometric pressure. The series operates on the IEEE 802.15.4 standard at 2.4 GHz to communicate with a ZW-REC coordinator, which connects to an Ethernet or Internet network. It is engineered for demanding industrial applications in both indoor environments and harsh outdoor conditions.

The system provides a built-in web server for data display and supports alarms by email without requiring special software. The series communicates via star topology networks supporting up to 128 end devices per receiver.

Operating Conditions & Performance

The ZW-ED Series measures temperature from -20 to 70°C (-4 to 158°F) and relative humidity from 0 to 100% RH. Barometric pressure is supported as a measurement type, though the specific range is not explicitly stated in the documentation.

Environmental limits vary by power source:

• Base Unit Operating Conditions: -20 to 70°C (-4 to 158°F), 90% RH non-condensing
• CR2032 Battery Operating Conditions: -20 to 60°C (-4 to 140°F), 90% RH non-condensing
• Alkaline Battery Operating Conditions: -18 to 55°C (-0.4 to 131°F), 90% RH non-condensing

The unit is housed in a weatherproof polycarbonate enclosure with an NEMA 4 (IP65) rating. Wireless communication operates at 2.4 GHz (2400 to 2483.5 MHz) across 16 channels, offering a range of up to 1000 m* (3280') without obstructions or interference.

Configuration Options

The series is available in two primary configurations: the standard ZW-ED and the ZW-ED-LCD, which includes an LCD display. The LCD displays temperature in °C, pressure in mbar, and relative humidity in % where applicable.

Power Options

The transmitter supports multiple power inputs:

• Mains Power: 5 to 36 Vdc or 24 Vac ±10%
• Battery Operation: Two C-cell 1.5 Vdc alkaline batteries (included) with an estimated lifetime of 7 years at a frequency of one reading per minute
• Backup Power: CR2032 lithium battery for RTC back-up only (included)
• Optional Adaptor: Safety Qualified AC power adaptor providing nominal output of 5 Vdc @ 0.6 A with input range of 100 to 240 Vac, 50/60 Hz

Connectivity and Accessories

The unit features an M12-8 connector for accessories. Compatible options include dual M12-8 right angle terminator cables in lengths of 1 m (3.3'), 3 m (9.8'), or 5 m (16.4'). The series is compatible with the Omega Dashboard software and various M12 digital probes, including stick probe temperature sensors, lug mount probes, industrial temperature/humidity probes, and barometric pressure variants.

Key Product Differences

The primary distinction within the ZW-ED Series lies in the display capability. The standard model (ZW-ED) functions as a long-range wireless end device for use with compatible M12 digital probes without an integrated visual interface. The variant designated ZW-ED-LCD adds an LCD screen to provide local readouts of temperature, pressure, and humidity.

Both models share identical enclosure dimensions (135.9 L x 82 W x 39 mm D / 5.35 x 3.23 x 1.56"), wireless specifications, environmental ratings, and power requirements. The series requires a ZW-REC coordinator for network connectivity to Ethernet or Internet infrastructure.