Socket / Cellular Modem

  • Embedded Cellular Modem
  • CDMA or GSM cellular access (model dependent)
  • ANSI C12.20 – Revenue Grade
  • ETL Listed, CE, BTL Listed
  • 208-240Vac L-L or 120-480Vac L-L
  • Conveniently offered in most Form Factors (1S-16S)
  • LCD display
  • Options include: Modbus pigtail, DTS Logging System

Data Sheets & Downloads

DTS SKT2 Brochure (1.7 Mb) [PDF]

Product Description

The DTS SKT2 Socket Energy Meter allows you to replace and upgrade your existing electro-mechanical meters and provide access to smart meter technology. This socket meter not only provides the highest accuracy and is certified ANSI C12.20 – Revenue Grade, but also offers the efficiency and convenience of an embedded CDMA or GSM cellular modem to access to your meter data. Having the cellular modem feature works well when there is no access to the building, home or local network.

The DTS SKT2 is ETL Listed and BTL (BACnet Testing Laboratories) Listed. It can feature an Integral LCD display and is available with an optional Modbus pigtail. Use this Class 0.5 “Smart” submeter to easily integrate with Building Automation Systems and Energy Monitoring Software. All the DTS Series is designed and manufactured in the USA and comply with the Buy American Provisions of ARRA Section 1605.


  • To upgrade existing electro-mechanical meters
  • Access to smart meter technology
  • Cellular access to meter data


House Solar — For Solar System Installers

  • Easy, quick installation using a standard socket base
  • No configuration required – automatically starts uploading data
  • Does not require access into house or building
  • Choice of hosted data service providers

Cloud — For Hosted Service Providers

  • Ability to choose and scale cell data plan
  • Embedded CDMA or 3G GSM cellular modem
  • Save by buying meters directly from us
  • Control of your own data


Measuring Circuits

Nominal Voltage: depending on form factor and model, range is -10% to +10%
Permanent overload: 1.1 x nominal voltage
Voltage burden: <0.1 VA @ 280 V ac L-N
Frequency: 45 to 65 Hz
Rated current: depending on form factor and model
Permanent overload: 1.5 x In for 5A version
Current input burden: 0.5 VA @ 5 A


Voltage: 0.5%, <0.2% typical (80-120%)
Current: 0.5%, <0.2% typical (10-120%)
Power: 0.5%, <0.2% typical (10-120%)
Power Factor: 0.5% (between 0.5 and 1.0)
Energy:** Class 0.5 (ANSI C12.20)

Mechanical Characteristics

Connection: Socket base
Case Material: Self-extinguishable, V0 plastic
Protection: NEMA 3R
Dimensions: 7”(178mm)[ x 7.48”(190mm)Depth
Weight: 2.5lbs (1136 g) – DTS-SKT2 – 2S


Operating temp: -4 to 158°F (-20 to 70°C)
Storage temp: -22 to 185°F (-30 to 85°C)
Humidity: 5 to 85% R.H. non-condensing
Display: Type : LCD Lines : 2 lines
Characters / line: 20
Auto scroll: 5 seconds


CDMA modem
Frequency: 800 / 1900 MHz
Approvals: FCC, IC, PTCRB, ROHS
Local Oper. Certificates: Verizon, Sprint & Aeris

3G GSM UMTS modem – North America
Frequency: 850 / 1900 MHz HSDPA
Frequency: 850 / 1900 MHz GPRS/EDGE
Approvals: GCF, FCC, IC, PTCRB, CE, ROHS
Local Oper. Certificates: AT&T

Pulse / Status Output (Optional)

Type: Potential Free, N.O. Solid State Relay
Pulse Width: 100 mS default Min 50 mS, User configurable up to 10 Seconds
Max 10 Pulses per Second
Pulse Rate: 1 Pulse / 1 kWh default, User configurable
Max On-Resistance: 30 ohm
Max Switching Voltage: 240Vac
Max Switching Current: 120mA (350mA for 10mS)

Standards & Safety

Safety: IEC 61010 Pending
EMC: IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-6, IEC 61000-4-8, IEC 61000-4-11
FCC: CISPR 11 class A

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