UNI-T UT343E vs UT343A Coating Thickness Gauge Comparison Malaysia

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Published: 1 October 2026

The UNI-T UT343A and UT343E both measure coatings on ferrous and non-ferrous metal substrates. However, they serve different levels of inspection work.

Choose the UT343A for straightforward coating checks with basic data storage. Choose the UT343E when you require a wider range, Bluetooth connectivity, larger memory and more complete inspection records.

UT343E vs UT343A Specifications

Specification	UNI-T UT343E	UNI-T UT343A
Measuring range	0–2000μm	0–1750μm
Accuracy	±(2%H + 2μm)	±(3%H + 1μm)
Substrate types	Ferrous and non-ferrous	Ferrous and non-ferrous
Measurement methods	Single and continuous	Single and continuous
Statistical readings	Maximum, minimum and average	Maximum, minimum and average
Data storage	3300 readings	199 groups
Bluetooth App	Yes	No
PC software	Yes	No
USB communication	Yes	No
Voice broadcast	Yes	No
LED and audio alarm	Yes	Yes
Power supply	Rechargeable lithium battery	Two AAA batteries

UNI-T lists a 0–1750μm range and 199-group storage for the UT343A, positioning it as the simpler model for general ferrous and non-ferrous coating measurements. UNI-T Meters

Choose UT343A for Basic Coating Checks

The UT343A is suitable when the main requirement is to display coating thickness quickly without mobile or PC data transfer.

Typical applications include:

Automotive paint checking
Powder-coated components
Painted metal parts
Incoming product spot checks
Small workshops
Occasional quality-control inspection
Basic ferrous and non-ferrous measurement

It offers single and continuous measurement, maximum, minimum and average values, plus LED and audio alarms.

Choose UT343E for More Complete Records

The UT343E is more suitable when the inspection requires digital records or a larger number of readings.

Its main advantages include:

Bluetooth mobile application
PC analysis software
USB communication
Storage for up to 3300 readings
Wider 0–2000μm range
Voice broadcast
Rechargeable lithium battery
Automatic or manual substrate identification
Conductive-coating measurement capability for suitable applications

These features are useful for factories, suppliers and professional inspection businesses handling repeated measurements.

2000μm vs 1750μm Range

The UT343E measures up to 2000μm, while the UT343A measures up to 1750μm.

Both ranges are suitable for many automotive paint, powder-coating and industrial finishing applications.

The UT343E provides additional capacity for:

Thicker protective coatings
Multi-layer paint systems
Heavy powder coatings
Components with an unknown coating range
Applications requiring readings above 1750μm

The coating-and-substrate combination must still be compatible with the instrument.

3300 Readings vs 199 Groups

The UT343A stores up to 199 groups, which may be sufficient for occasional inspections and smaller batches.

The UT343E stores up to 3300 readings, making it more suitable for:

Larger incoming inspections
Repeated vehicle checks
Supplier-quality records
Production sampling
Multi-point component inspection
Batch comparison
Longer inspection sessions

Choose according to the amount of data that must be retained, not only the measuring range.

Bluetooth and PC Analysis

The UT343E can connect to a compatible mobile application through Bluetooth and communicate with PC software through USB.

This allows users to:

Review multiple readings
Organise inspection data
Compare different measurement points
Monitor minimum, maximum and average values
Reduce handwritten records
Support quality-control reporting

The UT343A does not provide these connectivity features. Its simpler operation may be preferable when data transfer is unnecessary.

Battery Selection

The UT343A uses two replaceable AAA batteries.

This can be convenient for:

Occasional use
Field work where charging is inconvenient
Users who prefer replaceable batteries
Keeping spare batteries in the carrying case

The UT343E uses a rechargeable 3.7V lithium battery, which is more suitable for frequent inspection and repeated data-transfer work.

Automotive Inspection

Both models can compare paint thickness across compatible metal vehicle panels.

Choose the UT343A if you need:

Basic used-car inspection
Occasional paint checks
Direct readings without data transfer

Choose the UT343E if you need:

Records from multiple vehicles
Bluetooth data organisation
Larger memory
Wider measurement range
Professional inspection documentation

Neither model is intended for ordinary measurement on plastic bumpers or non-metal body parts.

Factory Quality Control

For simple production spot checks, the UT343A may provide the essential functions without unnecessary complexity.

For incoming inspection, supplier evaluation or regular production records, the UT343E offers stronger data-management capability.

Factories should consider:

Number of components inspected
Number of measurement points
Required coating range
Need for mobile or PC records
Internal quality procedures
Customer reporting requirements

Which Model Should You Choose?

Choose the UNI-T UT343A if you need:

A simple coating thickness gauge
Ferrous and non-ferrous measurement
Up to 1750μm range
Basic data storage
Replaceable batteries
No Bluetooth or PC reporting

Choose the UNI-T UT343E if you need:

Up to 2000μm range
Bluetooth App connectivity
PC software and USB communication
Storage for 3300 readings
Voice broadcast
Rechargeable battery
More complete inspection records

Businesses in Selangor, Kuala Lumpur, Johor and Penang should select the model according to the coating application and reporting requirement rather than choosing by range alone.

For assistance comparing the UNI-T UT343E and UT343A, send MTM Precision your coating type, substrate material, expected thickness and required record format.

MTM Precision Sdn Bhd
Showroom & Service Centre: No. 29-1 & 29-2, Jalan Bandar 18, Pusat Bandar Puchong, 47160 Puchong, Selangor, Malaysia
Tel: 03-8080 7172
WhatsApp: +6016-660 7346
Email: mtmpre@yahoo.com
Website: www.mtmpre.com.my

UNI-T UT343E vs UT343A Coating Thickness Gauge Comparison Malaysia