Specification

ADC

channels                            : 4
resolution                          : 16 bits (15 bits usable)
sample rate                         : 7812.5 Sa/second

Display

resolution                          : 800 x 480 pixels IPS
control                             : capacitive touch
update rate                         : > 70 waveform updates/second, zero blind time
calculations                        : 1 /second in background

Services

operating system                    : Raspberry Pi OS
software update                     : Wifi
time service                        : NTP server pool
remote access                       : SSH terminal
file transfer                       : Bluetooth
keyboard                            : Bluetooth

Voltage

peak                                : 450 V
accuracy                            : 1 % of reading
resolution                          : 0.1 V

Current

peak                                : 20 A
continuous                          : 3 A
accuracy                            : 2 % of reading
shunt resistance stability          : 50 ppm /degree C
full range resolution               : 0.010 A
low range resolution                : 0.001 A

Power

continuous (230V systems)           : 650 W
accuracy                            : 3 % of reading
resolution                          : 0.1 W

Earth leakage

peak                                : 10 mA
accuracy                            : 5 % of reading + 0.010 mA
resolution                          : 0.001 mA

Power quality

power factor                        : 2 % of reading
crest factor                        : 2 % of reading
THD(v)                              : 5 % of reading
THD(i)                              : 5 % of reading
Harmonic coefficients               : 3 % (h0 to h11), 5 % (h12 to h23), 20% (h24+) of reading