Alpen Optics Apex Thermal 25

• 384x288 thermal sensor: The sensor combines a practical resolution with 17.00 μm pixel pitch and 40.00 mK NETD, helping the monocular separate animals, people, and background detail more clearly when temperature differences are subtle.
• 25.00 mm objective with 1.50x magnification: This configuration keeps the image easy to interpret at short to medium observation distances, making it well suited to scanning woodland edges, fields, and tracks without the narrow feel of higher base magnification.
• AMOLED HD display: The 1280x960 screen presents thermal detail with strong contrast, which makes prolonged observation easier and helps the user judge shape and movement with less eye strain.
• Photo, video, and Wi-Fi connectivity: Built-in recording and wireless connection make it easier to document sightings, review observations later, or share the live view with a companion in the field.
• Weather-resistant field build: A waterproof, fogproof, shockproof housing and an operating range of -20°C to +50°C support dependable use in wet weather, cold mornings, and rough transport.

About the Alpen Optics Apex Thermal Series

The Alpen Optics Apex Thermal series is a family of handheld thermal-imaging monoculars built for users who need reliable heat detection in low-visibility conditions. Within the Alpen Optics lineup, the series covers practical field use rather than bench use, with applications that include hunting, wildlife viewing, security, camping, fishing, and search and rescue. The design focus is straightforward: detect heat signatures quickly, maintain a clear image in difficult weather, and keep operation simple enough for fast observation in the field.

A defining element of the series is Clear+ image processing, which is intended to improve edge definition and fine detail so warm targets stand out more distinctly from surrounding terrain. The series also supports Wi-Fi plus photo and video recording, allowing observations to be saved or shared without adding external accessories. Practical viewing tools such as picture-in-picture and a dedicated heat-detection mode further tailor the monoculars to real scanning work. In this family, Alpen Optics paired 384 × 288 thermal sensors rated at 40 mK with multiple objective-lens options, giving users a choice between wider, more general-purpose viewing and longer-reach observation.

About the Alpen Optics Apex Thermal 25

The Alpen Optics Apex Thermal 25 is the most compact interpretation of the Apex Thermal concept, built around a 25.00 mm objective lens and 1.50 x magnification. That combination favors fast target acquisition and comfortable area scanning over narrow, high-magnification viewing, which makes this thermal monocular especially practical for moving through mixed terrain, checking hedgerows, monitoring feeders, or locating heat sources at moderate distances. With a stated detection range of 1000.00 m, it is capable of identifying the presence of heat well beyond the distances at which a handheld observer will usually begin detailed assessment.

Its 384x288 thermal sensor, 17.00 μm pixel pitch, and 40.00 mK NETD work together to produce a usable balance of sensitivity and image structure. In practice, that means the monocular is better able to show temperature-defined outlines when animals or people do not stand far apart from the background in thermal contrast. The AMOLED HD display with 1280x960 resolution presents that information on a bright, high-contrast screen that remains easy to read during extended observation sessions.

The Apex Thermal 25 also supports image capture, video recording, video output, and Wi-Fi, so it fits users who want more than live viewing alone. Its 177.00 mm body and 454.00 g weight keep it manageable as a handheld unit, while the waterproof, fogproof, and shockproof construction helps it stay serviceable in rain, cold, and rough field handling.

About Alpen Optics

Alpen Optics was founded by Tim Gardner in December 1996, and the company introduced its first products in 1997. Its history identifies Rancho Cucamonga, California, as headquarters, and the brand has focused on sporting optics across several categories, including binoculars, spotting scopes, riflescopes, and thermal optics. That broad product mix is relevant here because it shows Alpen’s emphasis on practical field observation rather than a single narrow segment.

A later milestone came in 2018, when Explore Scientific acquired Alpen Optics’ trademarks and designs. Across the wider range, the company has been associated with optical features such as BaK-4 prisms, PXA phase coating, HR metallic coatings, and ED glass in selected lines. In the context of thermal products like the Apex Thermal series, Alpen Optics applies that field-oriented approach to devices intended for low-visibility detection and observation.

Main Features

• Product type: Thermal monocular
• Series: Alpen Optics Apex Thermal
• Magnification: 1.50 x
• Objective lens diameter: 25.00 mm
• Detection range: 1000.00 m
• Thermal sensor resolution: 384x288
• Thermal sensor pixel count: 0.11 MP
• Pixel pitch: 17.00 μm
• NETD: 40.00 mK
• Display type: AMOLED HD
• Display resolution: 1280x960
• Display pixel count: 1.23 MP
• Image capture: Yes
• Video recording: Yes
• Video output: Yes
• Connectivity: Wifi
• Built-in rangefinder: No
• Waterproof: Yes
• Fogproof: Yes
• Shockproof: Yes
• Operating temperature range: -20°C to +50°C
• Length: 177.00 mm
• Width: 53.00 mm
• Height: 80.00 mm
• Weight: 454.00 g
• Power supply: Alpen battery AAP-3500
• Color: Green

Warranty

Alpen Optics covers thermal devices for 5 years from the original purchase date. For the Apex Thermal 25, that gives a clearly stated multi-year warranty period for the electronic system rather than an undefined coverage term.