The compact design requires only 3 wire connections: neutral in, neutral out, and live 115V. An internal power supply provides the power for measurement and display of power current or voltage.

In default mode the display cycles between measurement types every 10 seconds. However, strapping pins are provided to fix the display to a specific measurement mode.

The on board micro-controller provides startup self test, automatic offset adjustment, ambient temperature drift compensation, and current shunt self heating compensation.

Features 

• 3.5 digit 7 segment non-multiplexed LCD. 12.5mm digit height.
• Board size 4.25" × 1.5".
• True RMS measurement. Accurate power measurement of non-linear loads (such as TV's, stereo's etc).
• 1W sensitivity / 1.75KW maximum power measurement.
• Current range 0 - 15A.
• ±1% voltage accuracy. ±2%+0.1A current accuracy. ±3% + 2W power accuracy.
• Works with 50Hz or 60Hz line frequencies.
• Works with 90V - 140V line voltages. (Specify 240V if required).
• Patented noise rejection, auto zeroing and auto-ranging systems.
• Off-line power with minimal components.
• Low system cost - no external power or shunt required.
• Board design and software available separately.
• Additional features (E.g. total energy measurement) are available on request.
• The design features a patent-applied- for low cost PCB current shunt.

• Industrial extension leads and power strips.
• Stand alone current measurement units.
• Built into high end wall sockets etc.
• Integration into consumer or industrial electrical products.

Pricing 

For service:

(Voltage Mode)
click for component side

(Measuring power in Watts)