TESCO-1039-Safety-Disconnect-Device

Safety Disconnect Device (1039)

FOR ELECTRIC UTILITY USE ONLY

The TESCO Metering 1039 Safety Disconnect Device is designed specifically for electric utilities and authorized utility field meter technicians.

It is not available for purchase by the general public. All inquiries and purchases are subject to verification by TESCO Metering.

Field-Proven Disconnect Control for Authorized Utility Crews

Whether deploying AMI meters, responding to outages or managing load-side safety during emergencies, authorized utility personnel can use the TESCO Metering 1039 to safely operate a compatible meter’s built-in disconnect switch without removing the meter from the socket.

This compact, field-proven device supports multiple meter types and provides added control and confidence during utility field operations. Optional field-configurable security can disable the unit if it is lost or stolen.

What It Does

  • Opens or closes a compatible meter’s built-in disconnect switch while the meter remains installed
  • Confirms proper alignment and communication with clear LED indicators
  • Reads the meter serial number, meter identification and firmware information
  • Logs the date and time of disconnect operations for utility records and compliance
  • Configures the device, updates firmware and manages meter passwords using SDD Field Tool Software
SKU: 1039 Categories: , ,
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Description

TESCO Metering’s Safety Disconnect Device (Catalog No. 1039) allows you to remotely open or close a meter’s disconnect switch—without removing the meter from the socket. Designed for utility field techs and emergency personnel, this handheld device helps improve safety and save time during service disconnects.

Key Features:

  • Meter Compatibility: GE/Aclara, Landis+Gyr, and Itron meters with optical ports
  • Remote Disconnect Control: Open/close service with the meter installed
  • Built-In Security: Password protection & optional secure keypress activation
  • Automatic Meter Recognition: LED indicators confirm proper alignment and communication
  • Ergonomic & Portable: Fits in the palm of your hand; lightweight enough for toolboxes
  • Read serial number, meter ID, firmware
  • Log date/time of disconnects
  • Configure, update firmware, and load passwords using SDD Field Tool Software
  • Data Output: USB connection for log retrieval and configuration
  • Emergency Ready: Ideal for safe shutdowns during structure fires or other crises
  • Rechargeable Battery: Lasts up to 1,000 operations per charge

Firmware and SDD Field Tool Release Notes

Version 1.48
Release Date: August 06, 2025

New Enhancements:

  • One-Button Demand Reset: A streamlined process to reset the meter’s demand register—just press and go. The TESCO 1039 automatically recognizes the meter, authenticates, sends the reset command, and confirms success.
  • Dual Password Capability: Supports two stored passwords per meter vendor. If the first fails, the device seamlessly tries the second—ideal for field situations with legacy or unknown credentials.
  • Auto Disable if Lost or Stolen: This enhanced-security version features an internal inactivity timer. After a preset idle time, the unit disables standard wake-up functionality and requires a USB connection plus physical button press to reactivate—minimizing the risk of misuse if the unit is lost or stolen.

Click here to Request a download for TESCO 1039 software

Specifications

  • Cat. 1039 compatible with GE/Aclara, Landis + Gyr, and Itron meters with a disconnect
  • Open and close the remote disconnect switch on meters with an optical port
  • Leave the meter in the socket during disconnect/reconnect
  • Allow meter to be installed with switch open, for safety and arcing (allowing the installer to set the meter with out worry of fault on load side)
  • Save time and money sending techs out in the field
  • Read date and time of open/close along with meter serial number or meter ID
  • Read data out via USB interface for data logs, times, voltage, etc.
  • Show/Hide password on supported meters
Unit Details
Model Safety Disconnect Device 1039
Meter Compatibility GE Aclara, Landis and Gyr, and Itron meters that include a disconnect and ANSI C12.18 optical port
Primary Function Open and close the remote disconnect switch with the meter left in the socket
Install Safety Allows meter installation with switch open to avoid arcing and to protect the load side
Data Capture Reads date and time of open and close events and records meter serial number or meter identification
Communications USB interface for configuration, log retrieval, voltage data, and firmware updates
Status Indicators LED indicators confirm alignment and two way communication
Security Password protection with optional secure key press activation and optional auto shutoff model
Power Rechargeable battery rated for up to one thousand operations per charge
Software SDD Field Tool Software for configuration, password management, and firmware updates
Use Cases AMI deployment, outage response, emergency disconnect, field service, and compliance logging

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Disclaimer:

TESCO Metering reserves the right to modify product designs, specifications, features, and documentation at any time as part of our continuous improvement process. All information is provided “as is” and may change without prior notice. While TESCO Metering® strives for accuracy, completeness, and technical reliability, customers should verify the latest product details before making purchasing or engineering decisions. For confirmation of current specifications or application suitability, please contact TESCO Metering® directly.