Shanghai, China
Business Type:
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Year of Establishment:
OEM/ODM Service
Sample Available
Spanish / French Speaker

Level Meter, Level Transmitter, External Level Transmitter manufacturer / supplier in China, offering Two Wire External Liquid Level Meter, Non Contact Radar Level Transmitter, 3mm Random Error Radar Level Sensor (A+E 62LB) and so on.

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Two Wire External Liquid Level Meter

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Min. Order / Reference FOB Price
1 Piece US $3,000/ Piece
Production Capacity: 500 Set/M
Payment Terms: L/C, T/T, Western Union
Principle: Sonar Echo
Range: >0-30m
Measurement Accuracy: 0.1%Fs
Accuracy: 0.1%
Kind: Ultrasonic Wave
Structure: Split Type

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Basic Info

Model NO.: A+E 69L
Warranty: 1 Year
Certification: CE
Material: Aluminum Alloy
Process Temperature: -40~300c
Item: External Level Meter
Measuring Range: 0.2~50m
Output: 4-20mA with Hart
Temperature: (-50~+100c) / (60~330c)
Protection: IP65 / IP67
Display: 6 Digits LCD
Supply Voltage: DC24V
Cable Entry: M20*1.5
Remote: up to 30m
Communication: RS485, Infrared, Hart
Trademark: AEAD
HS Code: 9026100000

Product Description

Two Wire External Liquid Level Meter ( A+E 69L)


Two Wire External Liquid Level Meter

 Product Description

The external level meter is a measuring instrument which utilises ultrasonic signals for the precise level control and measurement of liquids. The sensors are attached to the outside of the tank and measurements are made through the tank wall. There is no need to drill holes or to perform any welding to install the sensors.
Since there is no contact between the sensors and the liquid to be measured, the external level meter are ideal for hygienic applications and for the measurement of aggressive media.

External Level Meter Features

--No need to drill holes on the tank, external installation.

--No contact with media, completely non-invasive.

--Applicable for  poisonous, corrosive, high pressure, flammable, explosive, volatile, easy leaking liquids, etc. 

--High accuracy up to 0.2%FS.

--Unique two wire system, easy for wire connection.

--Non-contact measurement to make it safe and long working life.

--Easy and low cost installation and maintenance.

--Self-diagnosed function to make the meter stable and reliable.


External Level Meter Technical Data 

two wirefour wire
Measuring Range0.2~ 3m,0.3~ 5m,0.4~10m,0.5~15m,0.6~20m,0.7~30m,0.8~50m
Dead Zoneabove min measuring range, when the level comes to dead zone, it displays DEAD, and output 4mA.
Display  6 digits LCD (m)6 digits OLED (m)
Display Rate1mm
Transfer Volume±100m
Output4-20mA with Hart, max load 500Ω4-20mA with Hart, max load 1000Ω
CommunicationRS485, Hart, infraredRS485, Hart, infrared, Modbus, WIFI, Bluetooth, Ethernet
Transmitter Amb Temp-40ºC~+70ºC
Sensor Amb Temp-50ºC~+100ºC,60~330ºC
Ex-proofExdIICT6, intrinsic safety
Supply VoltageDC24VDC24V / AC220V
Cable EnrtryM20*1.5
Cable Length5m,10m,15m,20m,25m,30m


 External Level Meter Application Requirements

1. The liquid meida should only contain a small amount of gaseous or solid content. The tank bottom should be free of or be covered only by a little amount of deposit material.

2. When the media dynamic viscosity is between 10mpaS and 30mpaS, the mearuing range would reduce. When it's greater than 30mpaS, the meter could not be used.

3. Tank Material. The tank should transmit ultrasonic signal well, and no air interlayer if the tank wall is multilayer material. Thickness should be 2-70mm. 



All AEAD supplied external level meters are guaranteed in 12 month since delivery. 

How to select?

When you are not very clear about how to select an external level meter model, please kindly use following table.

ProductA+E 69L/
Cintrinsic safe
SystemLtwo wire
Sfour wire
Rangem03, 05, 10, 15, 20, 30, 50 (m)
Sensor TemperatureG60 ~ 330ºC
C-50 ~ 100ºC
Supply VoltageJAC220V
Communication (multi-choice)Rwith RS485
Hwith Hart
Iwith infrared
Mwith Modbus
Wwith WIFI
Bwith bluetooth
Ewith ethernet

 eg. if you choose A+E69L-AS05GCZ-RHI, that means normal type four wire external level meter, range 5m, accuracy 0.1%FS, sensor temperature -50~100C, supply voltage DC24V, with communication RS485, Hart and infrared. 

Our Services

AEAD Technology is committed to providing the very best external level meter support possible. Our customers have unique service needs, and we offer a variety of service options to support them. For any request, you will either get the answer or have one of our professionals to contact you within 24 hours!

--Telephone troubleshooting and support
--Applications assistance
--Installation assistance
--Service and repair
--Extended service contracts

AEAD Technology provides factory certified external level meter repairs, calibrations and re-inspection services for AEAD products. Be aware that we do not provide services for products from other manufacturers. For trainings on ultrasonic flow measurement technology, instrumentation and applications, please contact us for the availability and schedules.

Two Wire External Liquid Level Meter

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Two Wire External Liquid Level Meter

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