Best Isolation Amplifiers (Oct. 2026) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

WIELAND, 82.003.0200.0, Analogue Isolation Amplifier cores C2 M-A

9.9
CPR Score
Top 2

UltAlt Ground Loop Noise Isolator RCA Stereo 2 Channel Car Amplifier Noise Fi...

9.7
CPR Score
Top 3

MusRock 2pcs CJMCU ADUM1201 Magnetic Isolator 2500V Isolation 25Mbps 2.7–5.5V...

9.6
CPR Score
Tips


Our team has selected the top 30 best Isolation Amplifiers by analyzing and evaluating 306 products of different Industrial Electrical brands, including YWBL-WH, Fafeicy, Jectse, Broadcom And Pepperl + Fuchs, Still, Our editor rated and compared them on product features before you buy.

* CherryPicks.Reviews is reader-supported, Our editor review, and recommend the best products based on extensive data analysis, if you click on the product links, we may earn a commission through qualifying products purchased.

The Best Isolation Amplifiers Rated by CherryPicks

Market Overview
Isolation Amplifiers Reviewed
  • Reviews Analyzed: 19 Items
  • CPR Avg. Rating: 8.5 / 10
30 Products Evaluated
  • Highest Price: $762.95
  • Lowest Price: $6.58
  • Avg. Price: $184.64
Price Disclaimer

Top 30 Isolation Amplifiers on Amazon (Verified You can Buy)

Top 1

WIELAND, 82.003.0200.0, Analogue Isolation Amplifier cores C2 M-A

Wieland
82.003.0200.0
113.0 Grams

Ratings for Wieland (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Online Components - com - ❌ ❌ ❌

Features

WIELAND - Controls
WIELAND - Accessories
Top 2

UltAlt Ground Loop Noise Isolator RCA Stereo 2 Channel Car Amplifier Noise Filter Alternator Whine Suppressor Reducer for Car Audio System Car Stereo Head Unit Amp Eliminate Ground Loop Hum Buzz Sound

UltAlt

Ratings for UltAlt (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
UltAlt US Direct - ❌ ❌ ❌

Features

Package included:1x Ground Loop Noise Isolator
Precise Noise Reduction: Built-in professional isolation transformer effectively cuts off ground loop interference, completely eliminating current hum and buzzing in car audio to restore pure sound quality.
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Top 3

MusRock 2pcs CJMCU ADUM1201 Magnetic Isolator 2500V Isolation 25Mbps 2.7–5.5V Dual Supply -40°C to +125°C

MusRock

Ratings for MusRock (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
dragonlee - ❌ ❌ ❌

Features

High‑Speed Magnetic Isolation: This digital isolation module delivers fast and stable signal isolation with low propagation delay, making it ideal for high‑speed industrial and automotive communication systems.
Low Power Consumption: Designed for efficiency, each channel operates with low current consumption and supports ultra‑low power sleep mode, helping reduce overall system power usage in long‑term applications.
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Top 4

Pepperl & Fuchs Khd2-Rw1/Ex1 Isolation Barrier Amplifier (10349)

Pepperl + Fuchs
7.09 x 6.3 x 8.27 inches
1.92 Pounds

Ratings for Pepperl + Fuchs (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Rylan-MRO - ❌ ❌ ❌

Features

This item is used and in working condition.
Top 5

16-Channel PLC Amplifier Board,12-36VDC PLC Isolation Board,Input NPN Output NPN PLC Isolation Board PLC Relay Board

Jectse
Jectsebm5ndi2368
0.0 x 0.0 x 0.0 inches

Ratings for Jectse (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Jectse us - ✅ ✅ ✅
Liccx - ❌ ❌ ❌

Features

Isolate and amplify the weak control signal (only a few milliamps of current) by photoelectricity, and finally output a higher power control signal to directly drive the motor, contactor, solenoid valve, etc.
The response time is as low as milliseconds and there is no limit on the number of switches. It can directly replace traditional relays, reducing maintenance time and costs.
Show More

YWBL-WH DC 24V Current Signal Isolator Transmitter 4-20mA PLC Detect Signal Conditioner(One in and Two Out 4-20mA to 4-20mA)

YWBL-WH
YWBL-WHvpt24e73u8-04
5.5118 x 4.7244 x 1.1811 Inches
0.3086 Pounds

Ratings for YWBL-WH (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Partgry-T - ✅ ✅ ✅
Kerindas-US - ✅ ✅ ✅

Features

Good Proformance : Low Power Consumption ,theoretical power consumption is less than or equal to 1W.
Specifications: DC signal regulator power supply voltage: DC 24V ± 10%; rated power consumption: 1W;Response time: 100MS; dielectric strength: 2000V AC / 1MIN; input impedance: 50Ω; ambient temperature: -20 - 55 (°C); size: 100 × 22.5 × 114.5 (mm)
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Top 7

Baxnore 12 Channel PLC Amplifier Board, Isolation Relay Module, NPN Input PNP Output Module, Programmable Logic Controller, Automation Control Board for Industrial

Baxnore
Baxnorec6g9d0w47a

Ratings for Baxnore (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Calwann - ❌ ❌ ❌

Features

PLC Protection: This programmable logic controller can be used to protect the internal relays of your PLC; It safeguards essential components, ensuring longevity and reliability in your control systems
System Stability: It effectively avoids system instability caused by mutual interference; This feature enhances overall performance, allowing for smoother manage without unexpected disruptions
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Top 8

VARNOK PLC Signal Amplifier Board Single Chip Microcomputer PLC Signal Amplifier Board Input and Output NPN/PNP Isolation with Heatsink Cooling Fin(2 Channels,Input 12V-24V_Output NPN)

VARNOK
VARNOK

Ratings for VARNOK (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
HKliu-emarket - ❌ ❌ ❌

Features

【Material】:Adopting high quality transistor, superior performance, stable and reliable quality, the output signal optocoupler isolation, strong anti-interference ability.
【Widely used】: The output can control high-power devices, light bulbs, LED strips, DC motors, miniature pumps, solenoid valves and so on.
Show More
Top 9

VARNOK PLC Signal Amplifier Board Single Chip Microcomputer PLC Signal Amplifier Board Input and Output NPN/PNP Isolation with Heatsink Cooling Fin(1 Channels,Input 3.3V-5V_Output NPN)

VARNOK
VARNOK

Ratings for VARNOK (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
HKliu-emarket - ❌ ❌ ❌

Features

【Material】:Adopting high quality transistor, superior performance, stable and reliable quality, the output signal optocoupler isolation, strong anti-interference ability.
【Widely used】: The output can control high-power devices, light bulbs, LED strips, DC motors, miniature pumps, solenoid valves and so on.
Show More
Top 10

VARNOK PLC Signal Amplifier Board Single Chip Microcomputer PLC Signal Amplifier Board Input and Output NPN/PNP Isolation with Heatsink Cooling Fin(1 Channels,Input 12V-24V_Output NPN)

VARNOK
VARNOK

Ratings for VARNOK (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
HKliu-emarket - ❌ ❌ ❌

Features

【Material】:Adopting high quality transistor, superior performance, stable and reliable quality, the output signal optocoupler isolation, strong anti-interference ability.
【Widely used】: The output can control high-power devices, light bulbs, LED strips, DC motors, miniature pumps, solenoid valves and so on.
Show More
Top 11

Baxnore 16 Channel PLC Amplifier Board, Input NPN Output NPN Isolation Relay Board, Electrical Isolation Board, DC Relay Module for Industrial

Baxnore
Baxnoreipnavu8twy

Ratings for Baxnore (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Calwann - ❌ ❌ ❌

Features

Rapid Response Time: With a response time as low as milliseconds, this dc relay module allows for swift manage; There’s no limit on the number of switches, making it replacement for traditional relays while reducing maintenance time and costs
Independent Manage: Utilizing photoelectric isolation between the input and output stages ensures complete independence; This design effectively avoids instability caused by mutual interference, protecting the output node of your PLC
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Top 12

VARNOK PLC Signal Amplifier Board Single Chip Microcomputer PLC Signal Amplifier Board Input/Output NPN/PNP Input Photocoupler Isolation with Plug Header Socket.(1 Channels,Input 3.3V-5V_Output NPN)

VARNOK
VARNOK

Ratings for VARNOK (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
HKliu-emarket - ❌ ❌ ❌

Features

【Material】:Adopting high quality transistor, superior performance, stable and reliable quality, the output signal optocoupler isolation, strong anti-interference ability.
【Widely used】: The output can control high-power devices, light bulbs, LED strips, DC motors, miniature pumps, solenoid valves and so on.
Show More
Top 13

VARNOK PLC Signal Amplifier Board Single Chip Microcomputer PLC Signal Amplifier Board Input/Output NPN/PNP Input Photocoupler Isolation with Plug Header Socket.(1 Channels,Input 12V-24V_Output PNP)

VARNOK
VARNOK

Ratings for VARNOK (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
HKliu-emarket - ❌ ❌ ❌

Features

【Material】:Adopting high quality transistor, superior performance, stable and reliable quality, the output signal optocoupler isolation, strong anti-interference ability.
【Widely used】: The output can control high-power devices, light bulbs, LED strips, DC motors, miniature pumps, solenoid valves and so on.
Show More
Top 14

PI/NI-2I/I, Isolation Amplifier

PHOENIX CONTACT
PI/NI-2I/I

Ratings for PHOENIX CONTACT (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Components eStore - ❌ ❌ ❌
Top 15

VARNOK PLC Signal Amplifier Board Single Chip Microcomputer PLC Signal Amplifier Board Input and Output NPN/PNP Input Photocoupler Isolation(2 Channels,Input 12V-24V_Output PNP)

VARNOK
VARNOK

Ratings for VARNOK (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
HKliu-emarket - ❌ ❌ ❌

Features

【Material】:Adopting high quality transistor, superior performance, stable and reliable quality, the output signal optocoupler isolation, strong anti-interference ability.
【Widely used】: The output can control high-power devices, light bulbs, LED strips, DC motors, miniature pumps, solenoid valves and so on.
Show More
Top 16

Broadcom Isolation Amplifier, Analog, 3750Vrms - HCPL-7840-300E

Broadcom
HCPL-7840-300E

Ratings for Broadcom (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Radwell International - ❌ ❌ ❌

Features

<b>Price For:</b> Each <b> No. of Channels:</b> 1 <b> Isolation Voltage:</b> 3.75kV <b> Optocoupler Output Type:</b> Analog <b> Input Current:</b> 15.5mA <b> Output Voltage:</b> 3.8V <b> Opto Case Style:</b> SMD <b> No. of Pins:</b> 8 <b> Bandwidth:</b> 100kHz <b> Gain Tolerance:</b> 5% <b>RoHS Compliant:</b> Yes
Top 17

2865984, Isolation Amplifier - MACX MCR-EX-SL-2NAM-R-Up

PHOENIX CONTACT
2865984

Ratings for PHOENIX CONTACT (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
VoyageSupply - ❌ ❌ ❌
Online Components - com - ❌ ❌ ❌
Top 18

Phoenix Contact, 2902021, 3-Way Signal Conditioner - with configurable Input/Output - for Electrical Isolation and Conversion of Analog Signals in The mV and V Range - unipolar as Well as Bipolar. Pu

PHOENIX CONTACT
2902021
4.7244 x 5.1181 x 7.4803 Inches

Ratings for PHOENIX CONTACT (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Components eStore - ❌ ❌ ❌
Top 19

857-409 | WAGO JUMPFLEX® TRANSDUCER, Bipolar Isolation Amplifier

WAGO
857-409
0.2362 x 3.7008 x 3.8504 Inches
0.0441 Pounds

Ratings for WAGO (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Wire connector WAGO - ❌ ❌ ❌
DFW Liquidators - ❌ ❌ ❌
Top 20

YZHATDH Industrial CAN Bus Isolated Repeater Isolator Module Barrier Isolation Din Rail Mounting

YZHATDH
BJJTEECEC

Ratings for YZHATDH (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
luyuanmaoyi - ❌ ❌ ❌

Features

YZHATDH Industrial CAN BUS Isolated Repeater Isolator Module Barrier Isolation Din Rail Mounting
Top 21

MACX MCR-EX-SL-2NAM-R-UP, 2-Channel Ex-i Namur Isolation Amplifier with Wide-Range Power Supply for Proximity sensors and switches. Every Channel has a Relay with

PHOENIX CONTACT
MACX MCR-EX-SL-2NAM-R-UP

Ratings for PHOENIX CONTACT (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Components eStore - ❌ ❌ ❌
Top 22

BEI Sensors 60001-010 Electronic Module, EM-DR1-IC-24-TB-28V/V, Optical Isolator, Isolator Circuit, 19-29V Logic, Terminal Block, 28V Maximum, Vout = Vin

BEI SENSORS
60001-010
0.37 Pounds

Ratings for BEI SENSORS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
HenryAV - ❌ ❌ ❌
MaguireStore - ❌ ❌ ❌

Features

Eliminate ground loops
Reduce signal degradation from long cable runs (by acting as a repeater)
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Top 23

Fafeicy 16 Channel PLC Amplifier Board, Photoelectric Isolation Relay Output NPN for DC 12-36V Control Signal Amplification

Fafeicy
Fafeicyx76c8n1spr

Ratings for Fafeicy (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Mingsinc - ❌ ❌ ❌

Features

[HIGH POWER OUTPUT] This PLC amplifier board isolates and amplifies weak control signals as low as a few milliamps using photoelectric technology.
[ULTRA FAST SWITCHING] Experience response times as low as milliseconds with no limit on the number of switching cycles. This board directly replaces traditional mechanical relays, dramatically reducing maintenance downtime and operational costs while providing reliable, long lasting performance in demanding industrial environments.
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Top 24

16 Channel PLC Amplifier Board, PLC Isolation Relay Board, NPN Input NPN Output 12 36V, Photoelectric Isolation Module with Control for Motor, Contactor, Solenoid Valve

SparkFeng
SparkFeng9ompxqe7h8

Ratings for SparkFeng (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
SparkFeng Trading - ❌ ❌ ❌

Features

HIGHQUALITY- COMPONENTS: Our 16channel- PLC amplifier board is made of highquality- electronic components, ensuring stable and performance for industrial automation and control .
PHOTOELECTRIC ISOLATION: Featuring photoelectric isolation between input and output stages, this PLC relay board effectively prevents system interference, protecting PLC output nodes and enhancing overall stability.
Show More
Top 25

5 Pcs HCPL-7806 DIP8 A7806 HIGH CMR Isolation AMPLIFIERS HCPL7806 7806

TYSQXQ
0.0 x 0.0 x 0.0 Inches
0.002 Pounds

Ratings for TYSQXQ (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
XinYangLiuPengXiYuYeYouXianGongSi - ❌ ❌ ❌
quanzhouweiyuanzhuangshiyouxiangongsi - ❌ ❌ ❌
Xiwangshangwu - ❌ ❌ ❌

Features

Part Number:HCPL-7806 DIP8
Package contents:HCPL-7806 DIP8 5 pieces
Top 26

R1SE-0505/H2-R, Unregulated DC-DC Coverter - 1W - Input: 5VDC (+/-) 10% - Output: 5VDC - 2kV Isolation - 8 Lead SMD - Tape&Reel (25 Items)

Recom
R1SE-0505/H2-R

Ratings for Recom (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Components eStore - ❌ ❌ ❌
Top 27

Yechiry NE5532 Isolation Amplifier for Home Audio, 89 X 54 X 38 Mm

Yechiry
Yechiry40or7jghfs

Ratings for Yechiry (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Unisemnn - ❌ ❌ ❌

Features

【Loop Isolation】The transformer converts a one-end input into a differential balanced signal, reducing shared ground interference and background hum for clearer audio in home theater, studio mixers and audio hobbyists.
【Dual Operational Amplifier】 NE5532 operational amplifier boosts the signal 10 times with a gain of 20dB, bringing weak sources to a stronger circuit level. Capacitors and noise reduction circuit preserve detail when listening to DVD, CD, TV or MP3 at home.
Show More
Top 28

Phoenix Contact, 2811569, Isolating Amplifier with Safe Electrical Isolation and Wide-Range Power Supply (24 V ... 230 V AC/DC). DIP switches on The Front - Over 1600 Signal conversions can be Set. S

PHOENIX CONTACT
MACX MCR-UI-UI-UP-SP-NC
5.1181 x 1.5748 x 11.811 Inches
0.37 Pounds

Ratings for PHOENIX CONTACT (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Components eStore - ❌ ❌ ❌
Online Components - com - ❌ ❌ ❌
Top 29

16 - Channel PLC Amplifier Board, PLC Isolation Relay Board with NPN Input and Output, 12 - 36V DC Photoelectric Isolation for Motor Solenoid Valve Contactor Control

LHaefydore
LHaefydore20zqcsb4mh

Ratings for LHaefydore (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
XingPengMart - ❌ ❌ ❌

Features

Photoelectric Isolation: This 16-channel PLC amplifier board uses photoelectric isolation between input and output stages, ensuring complete electrical separation to protect your PLC from interference and damage while enabling stable, reliable signal transmission for industrial automation systems.
High-Power Signal Amplification: The PLC amplifier board boosts weak control signals (just a few milliamps) into robust 12-36V DC outputs capable of directly driving motors, solenoid valves, contactors, and other high-power devices without additional relays or drivers.
Show More
Top 30

Switch Amplifier Fits TURCK IM1-22EX-R Isolation

ZHRCLY

Ratings for ZHRCLY (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
zhuofan Industrial Supply - ❌ ❌ ❌

Features

1. Please place an order based on the model you need. The size and function of the same model are completely identical.
2.If you cannot find the required model on the page, please indicate the model you need after placing the order, and we will verify with you.
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Top 10 Isolation Amplifiers - Verified to Buy (October 2026)

Top 10 Isolation Amplifiers Brands on Amazon

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

  • Wieland
  • UltAlt
  • MusRock
  • Pepperl + Fuchs
  • Jectse
  • YWBL-WH
  • Baxnore
  • VARNOK
  • PHOENIX CONTACT
  • Broadcom

Top 10 Isolation Amplifiers Sellers: CPR Seller Rank List

CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.

Rank Name Yearly Feedbacks Avg. Ratings
🥇 Partgry-T 2,624 4.7
🥈 Jectse us 962 4.6
🥉 Kerindas-US 754 4.7
4 HenryAV 752 4.5
5 VoyageSupply 584 4.3
6 Radwell International 500 4.1
7 Online Components - com 497 4.5
8 Liccx 222 4.3
9 MaguireStore 64 5.0
10 DFW Liquidators 36 3.7
View or download top Isolation Amplifiers seller & rating report
Partgry-T [2624] Jectse us [962] Kerindas-US [754] HenryAV [752] VoyageSupply [584] Radwell International [500] Online Components - com [497] Liccx [222] MaguireStore [64] DFW Liquidators [36] Partgry-T 38% Jectse us 14% Kerindas-US 11% HenryAV 11% VoyageSupply 8% Radwell International 7% Online Components - com 7% Liccx 3% MaguireStore 1% DFW Liquidators 1%

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"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.

Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.


Why Should You Trust Us?

Now hundreds and thousands of Industrial Electrical supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best Isolation Amplifiers to buy for new October 2026?

CherryPicks’s Methodology for Evaluating Isolation Amplifiers

We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Industrial Electrical items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.

We collected and analyzed 306 of Isolation Amplifiers reviews based on our selection criteria. It helped us shortlist the top qualified and rated Isolation Amplifiers for Industrial Electrical, We found that most customers choose Isolation Amplifiers with an average price of $184.64, and the top brands are YWBL-WH, Fafeicy, Jectse, Broadcom And Pepperl + Fuchs. 

Then our expert-level editors reviewed all those quality items and selected the top 30 Isolation Amplifiers for you, We have researched hundreds of sellers and picked the top sellers for Industrial Electrical, including Partgry-T, Jectse us, Kerindas-US, HenryAV, VoyageSupply, Radwell International, Online Components - com, Liccx, MaguireStore And DFW Liquidators. The WIELAND, 82.003.0200.0, Analogue Isolation Ampl... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 0 consumers with an average rating of 0.0.

We've helped a lot of satisfied users get the right Industrial & Scientific product based on their needs, and save lots of time for them to pick Isolation Amplifiers to buy.


Written By Ronald M. Bieber

Ronald M. Bieber has rich experience as a science lab instructor in a college and this has provided him with the right requisite knowledge and experience to be a professional in the act of spotting the right and wrong product. He would be helping us make the right choice in this regard.