1. Introduzione e oltreview
The MiLESEEY TR256 series is a range of high-precision handheld infrared thermal camera imagers designed for quick and accurate temperature measurement across various applications. These devices feature an improved 256x192 thermal resolution, a wide temperature measurement range, and a clear 3.5-inch HD display. With capabilities like automatic hot/cold spot tracking, multiple color palettes, and robust construction, the TR256 series is suitable for industrial inspections, auto repair, circuit board analysis, HVAC inspection, and more.
Video: Oltreview of the MiLESEEY TR256 series thermal camera features and capabilities.
2. Contenuto della confezione
Upon opening the retail box, please verify that all the following items are included:
- MiLESEEY TR256 Series Thermal Imager
- Manuale d'uso
- SD Card (8GB MicroSD)
- Panno per la pulizia delle lenti
- Cavo dati USB (tipo C)

Image: Typical package contents for the TR256B model.
3. Specifiche
The following table outlines the key specifications for the MiLESEEY TR256 series thermal imagers. Note that some specifications may vary slightly between models (TR256, TR256B, TR256C, TR256E).
| Caratteristica | Specification (TR256/TR256B/TR256C) | Specification (TR256E) |
|---|---|---|
| Pixel di imaging termico | 256*192 | 256*192 |
| Intervallo di temperatura | -20℃~550℃ (-4°F to 1022°F) | -20℃~350℃ |
| Precisione | ±3℃/±3% (take the maximum value) | ±2℃/±2% (take the maximum value) |
| Dimensioni dello schermo | 3.5 pollici HD | LCD da 2.8 pollici (320x240) |
| Risoluzione dello schermo | 640*480 | 640*480 (implied by HD, but table says 320x240 for TR256E) |
| Frequenza fotogrammi in uscita | 20Hz | 25 Hz |
| Batteria | 5000mAh/3.7V Li-ion (Rechargeable) | 5000mAh Li-ion (Rechargeable) |
| Durata della batteria | 10-12 ore | 12 ore |
| Tempo di ricarica | 4 ore (carica completa) | 4 ore (carica completa) |
| Volume di caricatage/corrente | 5V 1A or 5V | 5V 1A or 5V |
| Banda di risposta spettrale | 8~14um | 8~14um |
| HFOV (Field of View) | 55.6 ° ± 2.8 ° | 56°x42° |
| Dimensione pixel | 12 micron | 12 micron |
| Sensibilità termica (NETD) | ≤50mK@f/1,300K,30Hz | 40 mK |
| Palette di colori | Six (TR256), Seven (TR256B) | Four (TR256E) |
| Allarme temperatura alta/bassa | SÌ | SÌ |
| SENSORE Non uniformità | <5% | N / A |
| Magazzinaggio | External 8G MicroSD card, eMMC (8GB SanDisk) | Scheda microSD |
| Interfaccia di comunicazione | USB2.0 (HS)*480M (Type-C) | U disco |
| Uscita video | Può essere scelto | N / A |
| Leggero | LED bianco ad alta potenza | Flash LED/punta dello schermo |
| Classe di protezione | Grado di protezione IP65 | Grado di protezione IP54 |
| Temperatura di esercizio | 0℃~35℃ (Working environment), -20℃~60℃ (Operating) | -10℃~50℃ |
| Temperatura di conservazione | -40℃~70℃ | -20 ℃ ~ 60 ℃ (-4 ℉ ~ 140 ℉) |
| Resistenza alla caduta | 1.5 metri | 2M |
| Dimensione | 238*95*85.5mm | N / A |
| Weight (W/l battery) | 540g | N / A |
| Software per PC | SÌ | SÌ |
| Trasmissione immagini in tempo reale | SÌ | SÌ |
| Connessione USB | U disco | U disco |
| Transportation/Storage Environment | 10%~95% RH (non-condensing) Card | 10%~95% RH (non-condensing) Card |

Image: Detailed specifications comparison for TR256B and TR256E models.
4. Caratteristiche principali
- High Thermal Resolution: 256x192 pixel per immagini termiche nitide e dettagliate.
- Ampio intervallo di temperatura: Measures from -20°C to 550°C (or 350°C for TR256E models).
- Alta precisione: Up to ±2°C/±2% for reliable measurements.
- Ampio display HD: 3.5-inch (or 2.8-inch for TR256E) screen with 640x480 resolution for easy viewing.
- Monitoraggio automatico dei punti caldi/freddi: Quickly identifies and warns of high or low temperature areas.
- Palette di colori multipli: Offers 6, 7, or 4 color palettes (depending on model) for enhanced visualization and analysis.
- Batteria a lunga durata: Built-in 5000mAh rechargeable battery provides 10-12 hours of continuous operation.
- Ricarica di tipo C: Convenient and fast charging, reaching full capacity in approximately 4 hours.
- Infrared + Visible Fusion: Dual camera mode allows switching between infrared and visible light for clearer inspection.
- Focus-Free Wide FOV: 56°x42° field of view for efficient investigation in various spaces.
- High-Power LED Lighting: Integrated LED light for working confidently in dark environments.
- Emissività regolabile: Allows for accurate temperature measurement across different object surfaces.
- Software di analisi del PC: Supports PC software for detailed image analysis and reporting (Windows 10 compatible).
- Design durevole: IP65 (or IP54 for TR256E) dustproof and waterproof rating, with 1.5m (or 2M for TR256B/TR256E) drop resistance.
- Supporto multilingua: Disponibile in 13 lingue.

Image: High thermal resolution for quick and accurate measurements.

Image: Automatic Hot/Cold Spot Tracker for quick inspection warnings.

Image: 3.5-inch HD display for clear visualization of thermal data.

Image: Extended battery life for prolonged use.

Image: Multiple color palettes for diverse analysis needs.

Image: Type-C rechargeable battery for convenient power.

Image: High/Low Temperature Auto-Tracking feature.

Image: Summary of core capabilities including resolution, fusion, and measurement range.

Image: Wide Field of View (FOV) for comprehensive scanning.

Image: Broad measurement range for diverse applications.

Image: Powerful LED light for illumination in dark areas.

Image: Adjustable emissivity for accurate readings on various surfaces.
5. Impostazione
5.1 Caricamento della batteria
- Connect the provided USB Data Cable (Type-C) to the charging port on the device.
- Plug the other end of the USB cable into a compatible 5V 1A or 5V power adapter.
- The battery indicator on the display will show charging status. A full charge typically takes approximately 4 hours and provides 10-12 hours of operating time.
5.2 Inserimento della scheda SD
- Locate the MicroSD card slot on the device (refer to the device diagram in the manual).
- Gently insert the provided 8GB MicroSD card into the slot until it clicks into place. Ensure the card is oriented correctly.
5.3 Accensione/Spegnimento
- Per accendere, tieni premuto il pulsante di accensione finché il display non si illumina.
- Per spegnere, tenere premuto il pulsante di accensione finché il dispositivo non si spegne.
6. Istruzioni per l'uso
6.1 Funzionamento di base e navigazione
- Use the directional buttons and 'SET' button to navigate through menus and confirm selections on the 3.5-inch HD display.
- The device supports 13 languages, which can be selected in the settings menu.
6.2 Modalità di imaging termico
- Infrared & Visible Light Dual Camera Mode: Switch between pure infrared, visible light, or fusion modes to get a clearer view of the inspection area. This allows for detailed thermal analysis combined with visual context.
- Palette di colori: Select from available color palettes (e.g., Iron, Lava, Rainbow, White Hot, Black Hot) to optimize the thermal image for different inspection scenarios and improve contrast.
6.3 Measurement and Analysis
- Monitoraggio automatico dei punti caldi/freddi: The device automatically identifies and highlights the highest and lowest temperature points on the screen, providing quick warnings for critical areas.
- Emissività regolabile: For accurate temperature readings on various surfaces, adjust the emissivity setting in the device menu to match the material being inspected.
- TR256C Laser Distance Meter: The TR256C model includes a laser distance meter function to assist in temperature measurement by providing distance information.
6.4 Acquisizione e memorizzazione delle immagini
- Press the dedicated capture button (usually a trigger or a prominent button) to save a thermal image to the inserted MicroSD card.
- The device has internal eMMC storage (8GB SanDisk) for additional memory.
6.5 Data Transfer and PC Analysis
- Connect the thermal imager to a computer using the USB Data Cable to transfer images and data. The device will appear as a 'U disk'.
- For advanced analysis, use the dedicated PC Analysis Software (compatible with Windows 10). Contact customer service for the download link if needed.

Image: PC Analysis Software for detailed thermal data interpretation.
7. Manutenzione
7.1 Pulizia
- Regularly clean the lens and display screen using the provided lens cleaning cloth. Avoid abrasive materials or harsh chemicals.
- Pulisci il corpo del dispositivo con un panno morbido eamp panno secondo necessità.
7.2 Cura della batteria
- Per prolungare la durata della batteria, evitare di scaricarla completamente frequentemente.
- Store the device with a partial charge if it will not be used for an extended period.
7.3 Conservazione
- Store the thermal imager in a dry, cool place within the recommended storage temperature range of -40℃ to 70℃ (-20℃ to 60℃ for TR256E).
- Ensure the storage environment has 10%~95% RH (non-condensing) humidity.
7.4 Durata
- The device is rated IP65 (TR256/TR256B/TR256C) or IP54 (TR256E) for dust and water resistance, making it suitable for various environments.
- It is designed to withstand drops from 1.5m (TR256) or 2M (TR256B/TR256E). Handle with care to prevent damage.
8. Risoluzione Dei Problemi
If you encounter any issues with your MiLESEEY TR256 series thermal imager, please refer to the following common troubleshooting steps:
- Il dispositivo non si accende: Assicurarsi che la batteria sia sufficientemente carica. Collegare il dispositivo a una fonte di alimentazione e lasciarlo caricare per almeno 30 minuti prima di riprovare ad accenderlo.
- Letture della temperatura imprecise: Verify that the emissivity setting is correctly adjusted for the material being measured. Ensure the lens is clean and free from obstructions.
- Immagini non salvate: Check if the MicroSD card is properly inserted and has sufficient free space. Try reinserting the card or using a different compatible card.
- Problemi di connessione al software del PC: Ensure the USB cable is securely connected to both the device and the computer. Try a different USB port or cable. Make sure the PC analysis software is installed correctly and is compatible with your operating system (Windows 10 recommended).
For persistent issues or problems not covered here, please contact MiLESEEY customer support.
9. Suggerimenti per l'utente
- The TR256C model uniquely features a laser distance meter function, which can be helpful for precise temperature measurements by providing accurate distance data.
- If you require the PC analysis software for Windows 10, please contact MiLESEEY customer service directly to obtain the download link.
- The TR256 series thermal cameras do not typically include an adapter lens specifically for electronics work as a standard accessory. Check product listings for specialized kits if this is a requirement.
10. Garanzia e supporto
For information regarding product warranty, technical support, or service, please refer to the warranty card included in your package or visit the official MiLESEEY websito. Conservare la ricevuta d'acquisto come prova d'acquisto per eventuali reclami in garanzia.





