Watts Up? Pro ES

The Watts Up? Pro ES comes with all the features of the Pro model, but boasts over 13,000 records of memory for sophisticated data collection. Over a week's worth of data can be collected with a resolution between records of only one minute. The sample interval (time between records) is user selectable between one second and one day.

Display Values

• Minimum wattage
• Maximum wattage
• Cost, in dollars and cents
• Average monthly cost
• Average monthly kwh
• Time
• Power factor
• Apparent Power
• True power
• Cumulative power (kwh)

• Minimum RMS voltage
• RMS voltage
• Maximum RMS voltage
• Minimum RMS current
• RMS current
• Maximum RMS current
• Power factor
• Minimum wattage
• Maximum wattage
• Duty cycle
• Frequency (Hz)

Technical Specifications

• 120 VAC, 60 Hz, 15 amps
• True RMS power measured and displayed
• +/- 1.5%, +/- 3 counts of the displayed value
• Below 60 watts, amps and power factor lose accuracy
• Higher ratings of 100-277v, 50/60Hz, and 20 amps require appropriate country specific cord set and receptacle, and is not UL listed. Internal electronics are the same
• Pro and Pro ES Models include a USB interface
• Main supply voltage fluctuations not to exceed +/- 10% of the nominal voltage
• Rate can be entered from $0.001 to $85.00 per kilowatt hour, in tenths of a penny
• Input via 6' electric cord, output via outlet on top of meter
• Indoor use only
• Weight: 1.5 lbs (0.7 kg)
• Dimensions: 7" x 4" x 2" (18cm x 10cm x 5cm)

For UL Rating

• Wattsup? is UL listed to standard UL 610010-1, and CAN CAS/C22.2 61010-1 (domestic version only)
• Altitude up to 2000 meters
• Temperature 5 C to 40 C
• Maximum relative humidity 80% for temperatures up to 31 C decreasing linearly to 50% relative humidity at 40 C
• Installation Category II