Best Current Transducers in 2026

Daisy
Last Updated: Feb 6, 2026

At a Glance: Our Top Picks for Current Transducers

Loulensy AC Current Transducer Sensor Split Core Transformer 0-10A,20A,50A Output 4-20mA UL&CSA,CE&Rohs
#TOP1
Loulensy Ac Current Transducer Sensor Split Core Transformer
5.1
PM SCORE
High Accuracy AC Current Transducer Transmitter AC 0-50A to DC 0-10V SZT15-CH-10V Self-Powered Current Mutual Inductor
#TOP2
High Accuracy Ac Current Transducer Transmitter Ac 0-50A
5.1
PM SCORE
Loulensy AC Current Transducer Sensor Split Core Transformer 0-10A,20A,50A Output 4-20mA RMS UL&CSA,CE&Rohs
#TOP3
Loulensy Ac Current Transducer Sensor Split Core Transformer
5.1
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Current Transducers of 2026

#TOP1

Loulensy Ac Current Transducer Sensor Split Core Transformer 0-10A,20A,50A Output 4-20Ma Ul&Csa,Ce&Rohs

LOULENSY
FCS521-SP-420E
2.76 X 1.10 X 3.50 Inches
0.33 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Loulensy 5.55

Features

Input:0-10A,20A,50A AC(With 3 input ranges meanwhile,selected with stick jumper)

Load Capacity:2 times current continuous

Enclosure Rating:UL,94 V-O flammability rated,ABS plastic housing

Certification:UL&CSA,CE&Rohs Listed

Output:4-20mA DC (Analog Signal)

Power Supply: 12-42V DC

Accurracy: 1%

Dimension:89*70*30mm (L*W*H)

Hole Diameter:20mm

Operating Temperature:-30 to +70 degrees Centigrade

Operating Humidity:0-95%(non-condensing)

Frequency:40-400Hz

#TOP2

High Accuracy Ac Current Transducer Transmitter Ac 0-50A To Dc 0-10V Szt15-Ch-10V Self-Powered Current Mutual Inductor

WALFRONT
WALFRONTEX96S3AM0G
3.54 X 2.56 X 0.98 Inches
0.24 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Perfurt 9.70

Features

High accuracy: Mutual inductance current monitoring has high current detection accuracy and safe isolation of input and output.

Self-powered: there is no external power supply required.

Easy to install: There is no need to connect DC into the circuit when measuring.

Current introduction: Measured current AC 0-10/20/50A, output signal DC 0-10V.

Straight-through structure design: The isolation withstand voltage is up to 2000V.

#TOP3

Loulensy Ac Current Transducer Sensor Split Core Transformer 0-10A,20A,50A Output 4-20Ma Rms Ul&Csa,Ce&Rohs

LOULENSY
FCS521-SP-420T
2.76 X 1.10 X 3.50 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Loulensy 5.55

Features

Input:0-10A,20A,50A AC(With 3 input ranges meanwhile,selected with stick jumper)

Load Capacity:2 times current continuous

Enclosure Rating:UL,94 V-O flammability rated,ABS plastic housing

Certification:UL&CSA,CE&Rohs Listed

Output:4-20mA DC (Analog Signal) RMS

Power Supply: 12-42V DC

Accurracy: 1%

Dimension:89*70*31mm (L*W*H)

Hole Diameter:20mm

Operating Temperature:-30 to +70 degrees Centigrade

Operating Humidity:0-95%(non-condensing)

Frequency:40-400Hz

#TOP4

Loulensy Ac Current Transducer Sensor Split Core Transformer 0-10A,20A,50A Output 0-5V Ul&Csa,Ce&Rohs

LOULENSY
FCS521-SP-5V
2.76 X 1.10 X 3.50 Inches
0.33 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Loulensy 5.55

Features

Input:0-10A,20A,50A AC(With 3 input ranges meanwhile,selected with stick jumper)

Load Capacity:2 times current continuous

Enclosure Rating:UL,94 V-O flammability rated,ABS plastic housing

Certification:UL&CSA,CE&Rohs Listed

Output:0-5V DC (Analog Signal)

Power Supply: None/Self-powered

Accurracy: 1%

Dimension:89*70*28mm (L*W*H)

Hole Diameter:20mm

Operating Temperature:-30 to +70 degrees Centigrade

Operating Humidity:0-95%(non-condensing)

Frequency:40-400Hz

#TOP5

Loulensy Dc Current Transmitter Transformer Transducer Split Core Input 0-100A Dc Output 4-20Ma Dc

LOULENSY
LDS100-SP-420E
1.89 X 0.63 X 1.57 Inches
0.33 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Loulensy 5.55

Features

Input:0-100A DC

Output:4-20mA DC

Power Supply:24V DC +/-15%(If you need other power such as 12V,contact us)

Hole Diameter:21mm

Accurracy: 1% F.S

Customerised Max Ranges:0-500A dc,e.g. calibrate Input 0-250A dc Output 0-10V

Split Core,convenient to apply in firm circuit

Response Time:<10 uS

Offset Voltage:=/<20mV

Power Consumption:=/< 30mA

Flame Retardancy:UL94-V0

Load Capacity:2 times current continuous,30 times 1 second

#TOP6

Loulensy 3-Phase Ac Current Sensor Transducer Transformer Transmitter With 3 Element 0-50A Ac Output 4-20Ma Dc

LOULENSY
AS050-SD-420E-3P
4.72 X 1.97 X 2.22 Inches
0.33 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Loulensy 5.55

Features

Input:0-50A AC(3 elements)

Offset Voltage: =/<10mV

Capacity Max:0-400A AC (is_Customerized,e.g.Input:0-280A with Output 0-20mA DC)

Working Environment:-10 to +70 degrees Centigrade,20%-90% without condensation

Storage Environment:-25 to +85 degress Centigrade,20%-95% without condensation

Output:4-20mA DC(3 elements)

Power Supply:24V DC +/-15%(if you need 15V or 12V,contact us)

Hole Diameter:20mm

Dimension:120*50*56.5mm (L*W*H)

Accurracy: 0.5%

Response Time:250mS

Load Capacity: 30 times current continuous

Isolation Withstanding Voltage:AC 3.0KV/min

#TOP7

Ac Current Transmitter, Szt20-Ch-420E Current Transducer Transmitter Transformer Sensor Ac Current Converter 0-200A For Ac Current Monitoring, Detection, Current Overload Protection

WAL FRONT
WALFRONTD2OCHW3M59
1.97 X 1.97 X 0.79 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
hotzzz 9.72

Features

USES: SZT20-CH-420E AC current sensor can measure the AC current in the grid or circuit in real time and convert it to 0-5V / 0-10V or 4-20mA DC current output signal.

VERSATILE: It can be combined with various AD to form a variety of digital centralized acquisition systems. Or output to the PLC to form an automatic control system, or match the traditional analog and digital indicating instruments, display the measured values.

EXCELLENT ATTRIBUTES: mutual current monitoring, high current detection accuracy, stable performance, safe isolation of input and output.

HIGH PRECISION: The product has a hysteresis of less than 1% and can be used in strong magnetic field conditions.

ADVANTAGES: It has the characteristics of strong overlapping ability, high precision, high isolation, high safety, low power consumption and strong anti-interference ability.

Top 10 current transducers Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Loulensy 5
Wal Front 1
Walfront 1

Top 10 current transducers Brands Pie Chart


We've carried out a comprehensive analysis of 6 reviews on current transducers, using our selection criteria to identify the best options in the electronic components. Our findings reveal that most customers typically select current transducers priced around $49.43, with top brands including johnson controls, loulensy, eujgoov, wal front, nodehawk, yanmis and walfront and cr magnetics

Our team of expert editors reviewed these high-quality items and handpicked the top 7 current transducers for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the electronic components category. These include amazon.com, loulensy, ciapsd8, hotzzz, nodehawk, yanmis and perfurt and nineone .

We are dedicated to assisting our users in finding the right sensors Products based on their needs, saving them considerable time when choosing which current transducers to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.