Roger GreenBlue GB202 Energy Consumption Meter 9999W

Features:
display of measurement time 
displaying the network voltage
display of power consumption
displaying the current socket load (device power in watts)
displays and records the total electricity consumption
displays and records total switch-on time and energy charges (after defining the rate) - - displays the frequency of the electrical network, power factor

Specification:
power supply 230VAC 50Hz
memory backup: 3 LR44 batteries (not included)
maximum load 3600W, 16A
voltage measurement range: 200V – 276V
voltage measurement error ± 1%
current measurement range 0.01A - 16A
current measurement error ± 1% or 0.01A
power measurement range 0.0W - 9999W
power measurement error ± 1% or ± 0.2W
total energy measurement: 999.9kWh
frequency measurement range 45Hz - 65Hz
clock error ± 1min/month
power consumption <0.5W
working temperature -0°C to +50°C
max 256 programs