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LIEMKE Manuals & User Guides

LIEMKE specializes in high-performance thermal imaging optics and night vision devices designed for hunting and surveillance, delivering German engineering precision.

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LIEMKE is a premier German manufacturer of thermal imaging technology, widely recognized for its high-quality optics dedicated to hunting, nature observation, and security applications. Now part of the Blaser Group, LIEMKE combines optical excellence with rugged durability to produce state-of-the-art thermal monoculars, clip-on devices, and aiming scopes.

Their product lines, including the popular KEILER, LUCHS, i REPTE series, are engineered to provide superior detection ranges, high-resolution imagery, and reliable performance in adverse weather conditions. LIEMKE urges a strong commitment to service, offering rapid turnaround times for maintenance and repairs.

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LIEMKE MERLIN-35 Thermal Imaging Device User Manual

LO-MERLIN35 • July 21, 2025
Comprehensive user manual for the LIEMKE MERLIN-35 Multifunctional Clip-On Thermal Night Vision Imaging Pre-Mounted Scope Device, covering setup, operation, maintenance, troubleshooting, and specifications.

LIEMKE support FAQ

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  • How do I calibrate my LIEMKE thermal imager?

    LIEMKE devices typically offer Automatic (Auto), Manual (M), and Shutterless (S) calibration modes. In Auto mode, the device calibrates itself periodically using an internal shutter. In Manual mode, you can trigger calibration by pressing the designated button combination when image quality degrades taking care to cover the lens if in Shutterless mode.

  • What app should I use with LIEMKE devices?

    Many LIEMKE thermal devices are compatible with the 'Liemke' app or 'T-Vision' app, which allows for live streaming, photo/video transfer, and remote control via Wi-Fi. Check the specific manual for your model's App Store or Google Play link.

  • Can I use my thermal imager during the day?

    Yes, thermal imaging cameras detect heat signatures rather than light, so they work effectively in both total darkness and bright daylight. However, never point the lens directly at the sun or intense energy sources to avoid damaging the sensor.

  • How do I charge the internal battery?

    Most LIEMKE models (like the LUCHS or KEILER) feature an internal rechargeable battery charged via a USB-C port. Use the supplied cable and adapter, or a suitable power bank (min 10W output), and ensure the port cover is closed tightly after charging to maintain water resistance.

  • What is the warranty period for LIEMKE products?

    LIEMKE typically offers a warranty of up to three years on their thermal optics, provided the device is used according to the operating instructions. Repairs are generally handled by their service center in Wetzlar, Germany.