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

Product Description

Measurlogic DTS SKT2 Socket Energy Meter allows you to replace and upgrade your existing electro-mechanical meters and provide access to smart meter technology. The DTS SKT2 socket meter provides the efficiency and convenience of CDMA or GSM cellular access to your meter data.

Use the DTS SKT2 Class 0.5 “Smart” submeter to easily integrate with Building Automation Systems and Energy Monitoring Software. The DTS SKT2 features an Integral LCD display and available with an optional Modbus pigtail. The DTS SKT2 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

Data Sheets & Downloads

DTS SKT2 Brochure (1.7 Mb) [PDF]

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