Microthermo Technology MT4 MINI, 19 mm lens

• 384x288 thermal sensor: Delivers enough detail for confident heat-source detection and target recognition while keeping the monocular compact and easy to carry for routine field use.
• 30 mK sensitivity: Helps the device separate small temperature differences, which improves scene contrast in damp, cold, or otherwise challenging conditions where weaker thermal signatures can blend into the background.
• 1x to 4x magnification range: Gives the MT4 MINI a practical balance between natural scanning at base magnification and closer inspection through digital zoom when more detail is needed.
• OLED display: Provides a clear viewing image with strong contrast, making the thermal picture easier to interpret during short observation sessions and quick checks in the field.
• 190 g compact body: Keeps the monocular light enough for pocket carry or as a backup thermal imager, reducing fatigue during long walks, spot-and-stalk hunting, or general observation.

About the Microthermo Technology MT4 Series

The Microthermo Technology MT4 series is a line of compact handheld thermal monoculars built for users who need a simple, portable thermal imaging tool for observation, detection, and short-range field work. Within the manufacturer’s thermal lineup, the MT4 family focuses on small size, low weight, and straightforward operation, making it well suited to hunting, property monitoring, wildlife spotting, and general surveillance tasks where carrying a larger device would be less practical.

These monoculars are centered on uncooled thermal imaging technology, which allows them to detect heat signatures without relying on ambient light. That makes the series useful both in full darkness and in daytime conditions where camouflage, brush, or uneven lighting can make conventional optics less effective. The MT4 concept emphasizes practical portability, with a compact housing, onboard display, and a control layout intended for quick use rather than prolonged setup. Across the series, the appeal lies in combining thermal detection capability with a form factor that is easy to keep close at hand for routine scanning and rapid checks in the field.

About the Microthermo Technology MT4 MINI, 19 mm lens

The Microthermo Technology MT4 MINI, 19 mm lens is the most compact kind of thermal monocular: a lightweight handheld unit designed for fast observation rather than extended static viewing. Its 19.00 mm objective lens and 384x288 uncooled FPA sensor give it the core thermal performance needed for locating animals, checking tree lines, scanning field edges, or monitoring movement around buildings and vehicles. This configuration is especially useful when the main priority is detecting heat quickly and carrying the device with minimal bulk.

The monocular offers 1.00 x to 4.00 x magnification, giving the user a natural overview at the low end and the option to zoom in for closer inspection. Because the optical zoom is fixed and the higher settings are digital, the strength of this setup is flexibility in a very small package rather than long-range detail work. The 30.00 mK NETD supports better separation between subtle heat differences, which helps when targets do not stand out strongly from the background. A 25.00 Hz refresh rate keeps the image responsive enough for normal handheld scanning and tracking of slow to moderate movement.

An OLED display contributes clear contrast in a compact viewer, while automatic calibration and Automatic Brightness Control help keep operation simple in changing conditions. The body measures just 106.00 mm in length and weighs 190.00 g, so it is easy to carry in a pocket or small pouch. Waterproof and fogproof construction adds reassurance for outdoor use, and the AA power supply keeps battery replacement straightforward when traveling or working away from charging points.

About Technologie Microthermo

Hangzhou Microthermo Technology is based in Hangzhou, China and specializes in thermal imaging hardware rather than general sporting optics. Its work includes the development and manufacture of infrared thermal imaging modules, cores, lenses, and cameras, which explains the company’s emphasis on compact thermal devices built around its own imaging expertise. The product range also includes uncooled, shutterless thermal imaging modules, showing a clear focus on the core sensor and imaging technologies behind handheld and weapon-mounted thermal systems.

Microthermo’s thermal products are used in applications such as hunting, weapon sights, and surveillance, and its monocular families include the MT4, MTW, and W series. That background places the company firmly in the field of practical infrared observation devices, with products aimed at users who need thermal detection capability in compact, purpose-built formats.

Main Features

• Product type: Thermal monocular
• Series: Microthermo Technology MT4
• Magnification: 1.00 x - 4.00 x
• Objective lens diameter: 19.00 mm
• Optical zoom: No
• Thermal sensor type: Uncooled FPA
• Sensor resolution: 384x288
• Thermal sensitivity: 30.00 mK
• Refresh rate: 25.00 Hz
• Calibration mode: Automatic
• Display type: OLED
• Power supply: AA
• Length: 106.00 mm
• Width: 66.50 mm
• Height: 46.00 mm
• Weight: 190.00 g
• Working temperature range: -10 ºC ... +60 ºC
• Waterproof: Yes
• Fogproof: Yes
• Built-in rangefinder: No
• Automatic Brightness Control: Yes
• Color: Black

Warranty

The Microthermo Technology MT4 MINI is supplied with a 2-year warranty.