Measurement method

Ultrasonic dual channel

Abnormal remind

Abnormal failure report,

Voltage and current alarm

Periodic reporting

Periodic reporting data

Historical data storage

Store hourly/daily/monthly

for godays

Indicator lamp

Communication lamp/rigger lamp

Current and voltage

Collect current and

voltage values

Call the police

Buzzer

Screen display

LCD

Uart

Four wire

Extemal storage

256K

AI SET

Pin type 4 needles

Environment temperature

-40 TO 85

Support agreement

Big-end mode HEX

Communication

20MA

Display

digital

Communication mode

LORAWAN

NB-IOT

Current

WIFI

RS485

M-BUS

Extermnal Transport

lorawan

Wireless communication

Wireless communication/GPRS/TCP/UDP

Wireless communication/WIFI/TCP/UDP

R5485-wire

Wireless communication/M-BUS TCP/UDP

Antenna

Soft antenna

Soft antenna

Spring antenna

Spring antenna

/

Spring anternna

Support agreement

Big end mode HEX

Big end mode HEX

Big end mode HEX

Big end mode HEX

Modbus RTU

Big end mode HEX

Communication

Low frequency

High frequency

NB-IOT

GPRS

2.4G

RS485

M-BUS

Pulse singna

/

/

3-wire GNDS1 S2

3-wire GNDS1 S2

3-wire GNDS1 S2

3-wire GNDS1 S2

Screen display

LCDbutton switching scree

LCDbutton switching scree

LCDbutton switching scree

LCDbutton switching scree

LCDbutton switching scree

LCDbutton switching scree

Communication distance

2-3KM

2-3KM

2-3KM

＜10m

/

/

Wire length

lineorder

/

/

/

/

Wire length:m

Line order:4-wire

Positive/negative A/B

/

Power supply

Main power +

Standby power

Main power +

Standby power

Main power +

Standby power

Main power +

Standby power

485 power +

Standby power

Main power +

Standby power

Advantage

High cost effective/extemal magnet activation/multifunction/standard interface

Low power consumption 12-20UA(sleep current)/High cost effective/ultra-small shape/high reliability(40 to 85℃ test temp.)/rich peripherals