Liemke Challenger 15 Thermal Imaging Monocular

• Wide field of view: The 25.50 ° viewing angle and 440.00 m/1000m field of view make it easier to scan woodland edges, fields and short to medium distances quickly, so heat signatures are less likely to be missed while moving.
• 384x288 VOx sensor: The VOx uncooled sensor with 17.00 μm pixel pitch delivers clear thermal contrast for locating game, checking cover and spotting movement in difficult light where conventional optics lose detail.
• 50.00 Hz refresh rate: A faster image update helps the scene stay fluid when panning, tracking moving animals or observing from a vehicle or high seat, reducing the jerky effect common to slower thermal devices.
• Compact handheld format: At 270.00 g, the Challenger 15 is light enough for regular carry, making it practical as a thermal monocular for scanning before raising a riflescope or moving into position.
• Wi-Fi and recording functions: Built-in Wifi plus photo and video capture allow observations to be shared, reviewed later or transferred to a mobile device, which is useful for documentation and group hunting situations.

About the Liemke Challenger Series

The Liemke Challenger series is built as a compact entry point into handheld thermal imaging for hunting and general outdoor observation. Within the LIEMKE range, the Challenger models focus on straightforward operation, low carrying weight and a format that is easy to keep at hand during a stalk, from a hide or while checking terrain after dark. Rather than emphasizing long-distance specialization, the series is designed around practical scanning performance, helping users detect heat sources quickly and interpret movement in real field conditions.

Typical Challenger-series characteristics include a lightweight monocular layout, integrated recording functions and wireless image transfer, giving the user both observation and documentation capability in one device. The series combines a thermal sensor, digital image processing and a compact display system in a housing intended for regular outdoor use. In practice, that makes the Challenger family well suited to hunters who want thermal support for locating animals, checking edges of cover and improving situational awareness without carrying a larger or heavier device. The emphasis is on fast detection, simple handling and portability, which is why the series fits naturally into hunting optics setups where a handheld thermal monocular complements conventional day or night observation equipment.

About the Liemke Challenger 15 Thermal Imaging Monocular

The Liemke Challenger 15 Thermal Imaging Monocular is the wider-view model in the series, built for users who prioritize fast area coverage over higher base magnification. Its 1.50 x magnification and 15.00 mm objective create a broad image that works especially well for scanning woodland rides, field margins and feeding areas at short to medium distances. With a detection range of 530.00 m, it gives enough reach to pick up heat sources well before they are identifiable in conventional optics, while the generous field of view helps maintain orientation and track movement across the scene.

Its 384x288 thermal sensor uses a 17.00 μm pixel pitch and a 50.00 Hz refresh rate, a combination that supports stable observation when panning and a natural-looking image when following moving targets. The LCOS display with 720x540 resolution presents the thermal image clearly for handheld use, while automatic and manual calibration modes let the user balance convenience with image consistency in changing conditions. Photo capture, video recording and video output add practical value for reviewing observations, and Wifi expands that by enabling image transfer to a mobile device.

In the hand, the monocular remains easy to carry thanks to its 270.00 g weight and central focusing system. A Li-ion power supply with 6.00 h battery life supports extended observation sessions, while IPX-6 water resistance and fogproof construction make the unit suitable for damp weather and cold transitions that are common in hunting use.

About Liemke

LIEMKE has been active in thermal imaging since 2008 and focuses on thermal imaging optics for hunting and outdoor use. The company developed its own optics from 2014, which helped establish a product range tailored to practical field observation rather than general consumer electronics. Its lineup includes handheld devices, clip-on systems and dedicated thermal products for different hunting applications.

Within the brand structure, the KEILER line covers handheld thermal imaging devices, while the LUCHS line comprises pre-mounted thermal imaging devices. LIEMKE products also include the MERLIN thermal imaging line, and the company integrates image transfer options that allow thermal footage to be sent to mobile devices through Wi-Fi or a cable. Since 2020, LIEMKE has been part of the Blaser Group, reinforcing its position as a German specialist in hunting-oriented thermal optics.

Main Features

• Series: Liemke Challenger
• Magnification: 1.50 x
• Objective lens diameter: 15.00 mm
• Field of view: 440.00 m/1000m
• Field of view (degrees): 25.50 °
• Detection range: 530.00 m
• Thermal sensor type: VOx Uncooled
• Sensor resolution: 384x288
• Pixel pitch: 17.00 μm
• Refresh rate: 50.00 Hz
• Calibration mode: Automatic, Manual
• Display type: LCOS
• Display resolution: 720x540
• Image capture: Yes
• Video recording: Yes
• Video output: Yes
• Connectivity: Wifi
• Built-in rangefinder: No
• Battery type: Li-ion
• Battery life: 6.00 h
• Focusing system: Central
• Weight: 270.00 g
• Waterproof rating: IPX-6
• Fogproof: Yes
• Tripod adaptable: Yes
• Color: Black

Warranty

LIEMKE provides a 3-year warranty on its thermal imaging optics, including the Liemke Challenger 15 Thermal Imaging Monocular.

In the Box

• Challenger-15 thermal imaging monocular
• Charging cable
• Operating manual