Keiler 25.1 Thermal Monocular

High-definition thermal imaging leader Liemke has extended its popular Keiler line with the addition of the German-made Keiler 25.1. This newest thermal monocular incorporates 384×288 pixel resolution, a 12µm VOx sensor and a 25 mm objective lens. Two quick-change modes in the Keiler’s advanced image processing software provide natural, detailed images regardless of ambient lighting or weather conditions. Its heat signature detection capability extends out to 1,250 meters, making it ideal for hunting in forests or fields.

The Keiler 25.1 is designed to be easy and intuitive to operate. A central scroll wheel controls the menu, zoom, and other functions. Said menu incorporates standard, custom and basic modes, as well as a quick-access feature that can be user-customized for frequently accessed functions. The unit’s design makes it easy to locate all important buttons intuitively—even in complete darkness. An internal memory capacity of 32 GB is included, making it simple to capture photos and videos from your hunt.

“Liemke thermal optics have been a hit with hunters here in the U.S. and those who want to  observe their surroundings and nature at night,” says Jason Evans, CEO of Blaser Group, Liemke’s official U.S. importer. “The new Keiler 25.1 is the smallest, most compact of our Keiler line. It’s easy to carry in a pocket and delivers powerful performance.”


25mm objective lens
Start-up time of only five seconds
Ceramic VOx detector with 384×288 pixel resolution
OLED display with 1024×768 pixel resolution
50 Hz refresh rate
2.4x basic magnification (digital zoom up to 10x)
Five color modes
Waterproof rating of IP67 (dustproof / waterproof for brief immersion)
Battery run time up to 10 hours
Weight: 15.69 oz.

MSRP: $2,777

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