Multi-Function Digital Meter

20A 100V DC digital multi-function voltage current power energy meter with 50A 75mV shunt resistor


PZEM-031  20A 6.5 ~ 100V DC digital multi-function meter

with shunt resistor

Product Description

Product type:PZEM-031

A.      Function

1. Electrical parameter measurement function (voltage, current, active power, energy)

2. Voltage alarm function (over voltage alarm threshold, backlight and voltage flashing to alarm).

3. The reset function of energy key.

4. Store data when power off.

5. Large-screen LCD (display voltage, current, active power, energy at the same time)

6. Backlight function.

B.      Appearance and Key function

IDisplay Interface

Display interface is large-screen LCD, it can display voltage, current, power, energy parameters at the same time.

II. Display format

1.       Power: test range: 0~2kW

within 1KW, the display format is 0.0~999.9W;

1KW and above, the display format is 1000~2000W.

2.       Energy: test range: 0~9999kWh

Within 10KWh, the display format is 0~9999Wh;

10kWh and above, the display format is 10~9999kWh.

3.       Voltage: test range: 6.5~100V

Display format: 6.50~99.99V

4.       Current: test range: 0~20A

Display format: 0.00~20.00

III. Key

1.       Backlight control

Short press the key to turn on or off the backlight, the backlight has memory function, it can store the on or off state when power off.

2.       Reset energy

Step1: Long press the key until the power display area display “CLr”, then release the key.

Step2: At this moment, the energy is flashing to prompt this is the energy reset state, if short press the key again, then the energy value is cleared and exit the reset flashing state.

Step 3: If there is no operation within 5 seconds, it means the energy value is not cleared and will exit the reset state.

3.       Set voltage alarm threshold

Step1: Long press the key until the power display area display “SET”, then release the key.

Step2: After enter this state, the voltage area display the current high voltage alarm value, the current area display the current low voltage alarm value and the last digit begin to flash, then you can short press to plus 1, when there is no operation over 3 seconds, it will switch the digit position automatically, from the high

voltage alarm value to the low voltage alarm value, there are total six digits, the range of the voltage alarm threshold is 6.5~99.9V;

Step3: After finish the setting, long press the key until the screen display “PASS”, that means you set successfully and will exit the setting state automatically.

4.      Choose measuring range

Step1: Long press the key until the power area display “Curr”, then release the key

Step2: At this moment, the current area display “100A”, short press the key to switch between“100A”and “50A”, to prompt the range of the external shunt is 100A/75mV or 50A/75mV, please note that this meter can only use these two specification shunt.

Step3: Long press the key to exit the setting state or after no operation within 3 seconds it will store automatically and exit the setting state.

C. Precautions

1. This module is suitable for indoor, please do not use outdoor.

2. Applied load should not exceed the rated voltage, current.

3. Wiring order can’t be wrong.

D. Specification parameters

1. Working voltage: 6.5~100VDC

2. Test voltage: 6.5~100VDC

3. Rated power: 20A/10000W

4. Measurement accuracy: 1.0 grade

E. Wiring diagram

1 meter with shunt

F. Dimension diagram (mm)

1 multi-function meter.jpg2 multi-function meter.JPG3 multi-function meter.JPG4 multi-function meter.JPG5 multi-function meter.JPG

2 PZEM-021 AC digital multi-function Voltage Current Power Energy meter.jpg

Trade Information

Payment terms T/T,L/C,Western union,Paypal,Escrow,MoneyGram
Payment conditions 30% deposit in advance,70% balance before shipping.
Delivery time 3-7working days after deposit,2-4 working days for inventory
Packing Neutral carton,Wooden case for large size
Shipping By sea,by air and by express delivery


Q:How to order our product ? 

A:1).Please tell us the model and quantity and other request you need. 

   2).We make the PI for you.

   3).After you confirm the PI, we arrange the order for you after receiving your payment.

   4).After the goods finished, we send the goods out to you and tell you the tracking number.

   5).We will track your goods until you receive the goods. 

Q:  What's your warranty ?

A: 1-2 years

Q: What's your contact information:

A: Our address: Liushi town, Zhejiang province, China. 

Q: What's your shipment method?

A: We ship by Express, by air, by sea, by train. Normally we checked and compare, then provide

customer the most proper shipment method.

Q: What's about MOQ?

A: First order MOQ=1pcs

Q: If i want to release order, what's the payment method you accept ?

A: We accept T/T, Paypal, Western union, L/C,etc.

Q: If i want to release order, what's the process?

A: Thanks. You can send inquiry to us by alibaba, or send us by email, we will reply within 24hrs.

Contact us

JBK series 40VA to 2500VA machine tool control transformer

ADD:NO.18 QunYing Road, Xingguang Industrial Zone, liushi, Yueqing City, Zhejiang, China

Tel: +86 577 61787391               Fax:+86 577 61787392


Mobile/WeChat/WhatsApp:+86-139 6878 5810

Thank you & Now send your kindly inquiry below, please!