80-260 Volt 0-20 Amp AC Panel Meter

AC Panel Meter Functions:

This meter displays Four Electrical parameter measurement functions (voltage, current, active power, energy)
Running time function (record the load accumulated operating time)
Overload alarm function (over power alarm threshold backlight flashing to alarm)
Power alarm threshold preset function (can set power alarm threshold)
The reset function of energy and running time keys
Backlight feature
Stores data when power is off (store the accumulated energy, running time, display items, the state of backlight on or off)
Large-screen LCD (display voltage, current, energy, active power, the accumulated running time)

Key function descriptions:

In normal display state, press the UP button to will reverse display order for time, power, energy, current, voltage
In power alarm threshold setting state, press the UP button & it will +1
Press the UP button to exit the reset state when energy and time are in the reset state

DOWN

In normal display state, press the DOWN button to reverse the display of voltage, current, energy, power, time
In power alarm threshold setting state, press the DOWN button & it will -1
Press the DOWN button to exit the reset state when energy and time are in the reset state

In power display state, press & hold for 3 seconds to enter into the power alarm threshold setting state
In energy or time display state, press & hold for 3 seconds to enter into the energy or time reset state

In normal display state, press the OK button to turn on or off the backlight
In power alarm threshold setting state, press OK button to switch the setting digits
In energy or time reset state, press the OK button to clear the energy or time and exit the reset state

Precautions:

This module is suitable for indoor use only, please do not use outdoors
Applied load should not exceed the rated power
Incorrect wiring order will disrupt function and possibly damage the meter
It can't be used with an inverter

Specification parameters:

Working voltage: 80 ~ 270VAC
Test voltage: 80 ~ 270VAC
Rated power: 20A/4400W
Operating frequency: 45-65Hz
Measurement accuracy: 1.0 grade
Outside Dimensions: 96.4mm x 44mm x 24mm

Note:

There are three types of power: active power (P represents / unit W), reactive power (Q represents / unit Var), apparent power (S represents / unit VA).

And the power of our product is active power.

Active power is calculated as: P = U * I * cosφ, cosφ represents the power factor, for purely resistive loads (such as incandescent, heater, etc.) the power factor is generally close to 1, for inductive load and capacitive load, the power factor is between 0-1; so when you test the purely resistive load, the power(P) is substantially equal to or close to U * I; but when you test inductive or capacitive loads (such as refrigerators, washing machines, televisions, computers, etc.), P <U * I . As for the specific number is related to the power factor, for each appliance has different power factor, so please believe the value of our product.

Quantity	Unit Price	Ext. Price
1	$11.44	$11.44
10	$13.80	$138.01