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Product Demo

Username: ld2100
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Product Demo


The SeaHawk LD2100 distance-read leak detection controller monitors up to 5,000 feet (1,524 meters) of sensing cable.  Robust and web-accessible, it is compatible with all SeaHawk sensing cables and the SD-Z spot detector.


Designed to monitor large facilities and complex leak detection networks, the LD2100 can be configured as a Modbus Client in systems with multiple RLE leak detection controllers.  It can easily integrate into existing facility monitoring systems and can be configured for direct notification via email.  The LD2100′s firmware includes a user configurable map which, when a leak is detected, will visually indicate the location of the leak on the map.

The LD2100 is ideal for monitoring large leak detection networks, facilities with raised floors, museums, libraries, data centers, clean rooms, telecommunication centers, and other critical areas.

Ready to purchase a SeaHawk system? Download and use our SeaHawk Sensing Cable Length Calculator to make sure you order the right amount of cable.

Make Sure You Have An Isolated Power Supply!

RLE leak detection controllers, including the LD2100, require an isolated power supply. A power supply is not included with the LD2100.  Purchase an RLE power supply – PSWA-DC-24 or 24V-POE-Kit – or RLE’s LD-ENC.

Click here for more information about RLE leak detection controllers and isolated power supplies.

Key Features

  • Monitors up to 5,000 feet (1,524 meters) of sensing cable and/or spot detectors
  • Interactive web-based leak detection map – avoid costly damage and downtime with fast leak notification
  • Adjustable leak, delay, and contamination thresholds
  • Identify cable disconnects & breaks
  • Thirty-two configurable zones allow users to label unique areas for quick identification
  • SNMP, Modbus, BACnet, and summary relay output allow for simple integration with BMS, NMS, & BAS
  • SMTP (email) notification of alarm conditions
  • Audible alarm
  • No factory calibration required
  • Annunciate multiple, simultaneous, leaks when other distance-read controllers are integrated into the system

LD2100 Specifications

Included Equipment: LD2100 controller, leader cable, end-of-line (EOL) terminator

Additional Requirements: Isolated RLE power supply, sensing cable (as needed for application), network cable

Power: Requires an isolated power supply.

  • 24VDC Isolated @ 600mA max., 50/60Hz; requires RLE power supply PSWA-DC-24 (not included)
  • 100/120/230-240VAC @ 500mA max., 50/60Hz; requires RLE LD-ENC enclosure (not included)

Output: 1 Form C summary relay, 1A @ 24VDC, 0.5A resistive @ 120VAC; configurable for latched or non-latched


  • Leak Detection Cable: Compatible with SeaHawk sensing cable (not included)
  • Cable Input: Requires 15ft (4.6m) leader cable and EOL terminator (included)
  • Maximum Length: 5,000ft (1524m) of leak detection sensing cable
  • Minimum Length: 35ft (11m)
  • Detection Accuracy: ± 2ft (0.6m) +/- 0.5% of the cable length
  • Detection Repeatability: ± 2ft (0.6m) +/- 0.25% of the cable length
  • Detection Response Time: When used with sensing cable, 5-995sec; software adjustable in 5 second increments; ±2sec.

Communication Ports

  • EIA-485: 9600, 19200, 38400, or 56700 baud (selectable); Parity: none, even or odd, 8 data bits, 1 stop bit
  • EIA-232: DB9 female connector; 9600 baud; 8 data bits, no parity, 1 stop bit
  • Ethernet: 10/100BaseT Ethernet port; 500VAC RMS isolation


  • EIA-485: Modbus RTU, Client & Server; BACnet MS/TP; N2
  • EIA-232: Terminal emulation, VT100 compatible
  • Ethernet: Ethernet, TCP/IP; Modbus/TCP/UDP, Client & Server; SNMP V1, V2, V3, NTP, SMTP, DNS; BACnet/IP

Alarm Notification

  • Visible Alarm: Green, alphanumeric, dot matrix LED display; bi-color status LED
  • Audible Alarm: 70dBA @ 2ft (0.6m); re-sound configurable (disabled, 0-24 hours)
  • Email (Ethernet): 4 email recipients; email sent on Alarm and Return to Normal; each alarm notifies all email recipients
  • SNMP Traps (Ethernet): 4 Community Strings

Logging Capabilities

  • Event Log: Last 500 events
  • Trend Log: Cable current level once daily for the last 288 days

Login Security

  • Web Browser Access (Ethernet): Web password Read Only; 1 Web password Read/Write
  • Terminal Emulation Access: None

Front Panel Interface

  • Display: Green alphanumeric dot matrix display
  • Push Buttons: Test/Reset: 1
  • LED Indicators: Power/Status: 1 bi-color (Power On: green; Alarm: red)

Operating Environment

  • Temperature: 32° to 122°F (0° to 50°C)
  • Humidity: 5% to 95% RH, non-condensing
  • Altitude: 15,000ft (4,572m) max.

Storage Environment: -4° to 185°F (-20° to 85°C)

Dimensions & Weight: 8″W x 4.25″H x 1.25″D (203mmW x 108mmH x 32mmD); 1.5 lbs. (680g)

Mounting: Panel mount Type 1 enclosure

Certifications: CE; ETL listed: conforms to UL 61010-1, EN 61010, CSA C22.2 No. 61010-1, IEC 61326-1:2005; RoHS compliant

Product Documentation Links

Technical Resources



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