Meter Requirements with Alternative Suppliers

To Purchase Aclara's Metrum Cellular External Device Follow These Steps:

  1. Contact RESCO representative Steve Brietzman at 800-356-9370, extension 307, or email
  2. Use the Metrum Device Ordering Specifications listed below to place the order.
  3. Let the Aclara representative know Consumers Energy requires access to the Metrum modem to retrieve meter data.
  4. Inform us when you've ordered and received your device or let us know if you have questions. Call 800-805-0490 and ask for the Electric Choice department or email us at
  5. We'll meet with you at the meter site to exchange the electric meter and ensure successful installation and operation of the Metrum device.

To Install the Device:

  1. Contact Aclara representative Don Troxell at 989-372-2106 or via email at for data service and to select a data plan.
  2. Email and let Aclara know the meter installation will be in Michigan and that Consumers Energy requires access to the modem to retrieve data. Be sure to provide your order number.
  3. If you have questions or need support regarding the Aclara's Metrum Cellular Device, please call 800-297-2728 or email
Please also note:
  • Your Metrum device should take four to six weeks to arrive.
  • You are responsible for hiring a licensed electrician to install the device.
  • Do not remove the old device until the meter exchange is complete.
For Consumers Energy questions please call 800-805-0490 and ask for the Electric Choice department or email  

Approved Cellular Device for Connection to Electric Metering Devices

Manufacturer Model Name Item Number
Aclara Metrum Cellular External ECMV-EX-00000

The Aclara Metrum Cellular External device is the only model approved for use with Consumers Energy metering equipment. Exact ordering specifications are below. For more information on the device, visit

Metrum Device Ordering Specifications

Enclosure NEMA Type 3, 3R or 4 UL approved
Mounting holes
Knock outs in the bottom of the unit for a conduit
Power Supply 120V-480V AC 60Hz
Internally fuse-protected
Connection External CDMA cellular communications device with RS232 on port 1700 at 9600 baud rate
Antenna External antenna as needed based on signal strength (additional costs will apply)
Requirements Metrum installation must be within two feet of the meter service location. Installations must be configured to allow data collection equipment to communicate with the meter. It is the customer’s responsibility to provide power to any wireless installation. The customer shall furnish, install, own and maintain all customer-owned service equipment, including all wiring and conduits.
Environmental Operating Range -20F to 120F
Humidity: 5% to 95% (non-condensing)