In daily tasks such as industrial maintenance, security inspection, and scientific exploration, quickly and accurately "seeing" temperature is the key to spotting hidden dangers and boosting efficiency. Infrared thermal imaging turns invisible heat patterns into intuitive images and has become an indispensable "third eye" for countless professionals. As a long-time specialist in this field, Xintai Instruments precisely understands the needs of different users and offers a range of handheld thermal cameras that cover entry-level, industrial-grade, and multi-scenario applications.
This article zeroes in on three popular models from Xintai Instruments—the budget-friendly HT-02D, the high-performance HT-04D, and the full-featured HT-A2+. Through side-by-side comparisons and in-depth analysis, we aim to give you a clear picture of each unit’s core strengths and ideal use cases so you can match the right thermal tool to your exact needs and make every inspection twice as efficient.
Xintai Instruments HT-02D Infrared Thermal Imager
The Xintai Instruments HT-02D handheld infrared thermal imager is an entry-level tool engineered for everyday temperature-measurement tasks, blending practicality with portability. Built around a 32×32 IR sensor and a 2.4-inch color display, it delivers clear thermal images. The 33°×33° wide field of view lets you capture the temperature map of a target area in seconds, while center-spot, hot-spot and cold-spot tracking help you pinpoint problem areas accurately.
The camera offers five false-color palettes—Iron, Rainbow, High-Contrast Rainbow, Black-Hot and White-Hot—enhanced by smart algorithms to deliver optimal image quality for any scene. It measures temperatures from –20 °C to 300 °C (–4 °F to 572 °F) with ±2 °C / ±2 % accuracy and an adjustable emissivity of 0.01–1.00, making it suitable for virtually any material surface. An 8 GB internal memory saves images in BMP format for easy documentation and later analysis.
Xintai Instruments HT-04D Infrared Thermal Imager
The Xintai Instruments HT-04D is an industrial-grade portable infrared thermal imager purpose-built for electrical inspection and electro-mechanical maintenance. Its standout feature is a 160×120 high-resolution IR sensor paired with a 2.8-inch TFT wide-viewing-angle screen that renders thermal-field details in crisp clarity. With imaging at ≤25 Hz, the video is smooth and ghost-free, while intelligent center-spot, hot-spot and cold-spot tracking lets you lock onto faults in seconds.
The HT-04D offers five professional palettes—Rainbow, Iron, Cool, White-Hot and Black-Hot—enhanced by smart algorithms for maximum image contrast. It measures –20 °C to +550 °C with dependable accuracy, overlays a 640 × 480 visible-light image, and comes with 4 GB onboard storage that captures JPG stills and MP4 clips, all transferable instantly via the built-in Type-C port.
Xintai Instruments HT-A2+ Infrared Thermal Imager
The Xintai Instruments HT-A2+ infrared thermal imager is a portable, multi-scene device widely used in medical, security, firefighting, archaeology, traffic, agriculture and geology work—an ideal tool for electricians and maintenance technicians to locate problems fast.
Equipped with a 3.2-inch touch screen, the unit gives you intuitive, fingertip control; you can adjust settings on the fly and switch among five palettes (Rainbow, Iron, Cool, White-Hot, Black-Hot) to suit any scene. It continuously displays the max/min temperatures in the scene, letting you spot thermal anomalies instantly.
Technically, the HT-A2+ delivers a 256 × 192 IR resolution and a smooth ≤25 Hz frame rate. It measures –20 °C to +550 °C with dependable accuracy (300 °C–500 °C: ±4 %; –15 °C–300 °C: ±2 °C or ±2 %; –20 °C– –15 °C: ±4 °C) and provides center-spot plus hot-/cold-spot tracking to zero in on faults faster.
After reviewing the HT-02D, HT-04D and HT-A2+, a clear ladder emerges: from “covers the basics” to “professional workhorse” to “all-round convenient.”
Xintai’s lineup spans every need—from personal to professional, simple to complex. Whether you want an entry-level helper or a full-spec expert tool, one of these three bestsellers fits the bill. Choose Xintai and keep precise temperature insight firmly in your hand.
