The digital voltage ampere meter uses a high-precision analog-to-digital converter (ADC) to measure voltage and current, and can accurately measure actual voltage and current values. The LED digital tube display can clearly display the voltage and current values, making it easy for users to read.

The digital ammeter can be controlled through buttons to set and adjust different parameters to meet the different needs of users. It has functions such as overload protection , which can effectively protect the safety of the circuit under test and the instrument itself.

The digital panel meter adopts a compact and lightweight design, making it easy to carry and use.

LED digital display voltage and ammeter are widely used in various occasions where voltage and current need to be measured, such as laboratories, industrial production sites, etc. It can provide accurate measurement results, and has the advantages of easy use, simple operation, and intuitive reading.

：Housing Style Classification

：Panel Style Classification

：Product Classification

：Working Power Supply Power Supply (Transformer)

M	M1	M2
Multi-function meter	Multi-display meter	Voltage and current patrol meter
A1	V1	VA
Current single display meter	Voltage single display meter	Voltage and current double display meter
A3	V3
Three-phase Ammeter	Three-phase voltmeter

：Communication

T1	T2
AC220V ; 50/60HZ	AC380V ; 50/60HZ

S1	S2
AC/DC 20~60V	AC/DC 80~260V

R	Blank
RS485 (MODBUS)	Non Communication

：Control Output

T	M
main control output SSR (DC12V)	main control switch output (relay)
V	A
voltage analog output (0~10V)	current analog output (4~20mA)

1	2
1-wayout output (single relay) upper limit output	2-way output (double relay) upper limit+lowerlimit output
0 or empty
No control output

：Input Signal (CT/ CT1/ PT/ PT1/ BTS1)

CT:

Current measurement range	The measuring range can be expanded
0~10A	determined by the parameters of external transformer
Variable ratio is adjustable
the default value is1

CT1:

Current measurement range (fixed)	External transformer can be hooked up outside
0~100A	Transformation ratio of 1000/1( variable ratio is not adjustable )

PT	PT1
Voltage Transformer (built-in)	Voltage Transformer (external)
BTS1
Current Divider (external)

：Control Output Remarks For Special Measuring Range (When the transformer is external, the variable ratio is marked here.)

：Function Customization (The function code is a 3-bit combination number)

Working Environment

Air Pressure	Relative Humidity
86 – 106kPa	45 – 85% RH

Main Technical Parameters

M1: The factory default of M1 multi-display meter is ammeter.When there is no signal input at the current detection end and there is signal input at the voltage detection end, the meter will automatically switch to voltmeter. If there is signal input at both ends, the preferred option is ammeter.

Maximum Power Consumption Of Instrument : 6W

Frequency Range Of Measurement Input Signal : 10~99.9Hz (factory default)

The Sampling Rate : about 100mS

The Measurement Accuracy : + 0.5%

Environment : the temperature is -30~55℃ and the humidity is ≤ 85% RH without corrosion.

Contact Capacity Of Alarm Output Relay : 3A-AC250V/DC30V

Product Appearance And Installing Size (mm)

Specifications	External dimension (Height*width*depth)	Panel hole dimension (Height*width）
M2口口-	48*48*66	46*46
M5口口-	48*96*66	46*92
M6口口-	72*72*66	67*67
M8口口-	80*80*66	76*76
M9口口-	96*96*66	92*92

Panel Style

Dark Border Panel

Dark Panel