A thermal clip-on attachment mounts in front of a compatible daytime riflescope, converting infrared radiation into a thermal image that can be viewed through the existing optic.

Unlike digital night vision, thermal imaging detects heat signatures without requiring an infrared illuminator. This makes it particularly useful for observing animals in darkness and challenging lighting conditions.

Front-mounted clip-ons allow users to retain their familiar day scope, although suitable mounting equipment and compatibility checks are essential.

The HIKMICRO THUNDER family includes thermal clip-on devices designed for different observation distances, environments and performance requirements.

Depending on the model and generation, features may include:

• High-resolution thermal imaging sensors.
• High thermal sensitivity for detecting subtle temperature differences.
• Advanced image processing technology.
• Integrated laser rangefinders on selected models.
• Shutterless imaging on supported versions.
• Video recording and wireless connectivity.
• Quick-release mounting compatibility.

Specifications vary between THUNDER generations and individual models. Always refer to the product specifications when comparing devices.

Thermal Sensor Resolution

Higher sensor resolutions can provide additional image detail, particularly when viewing distant objects or using magnification through a compatible daytime scope.

Objective Lens Size

Different objective lens sizes affect the field of view and detection characteristics. A wider field of view can be useful for scanning closer environments, while other configurations may be better suited to longer-distance observation.

Thermal Sensitivity

Thermal sensitivity is commonly expressed as NETD. Lower NETD values generally indicate greater sensitivity to small temperature differences, potentially improving image detail in challenging conditions.

Laser Rangefinder

Selected HIKMICRO THUNDER models incorporate an integrated laser rangefinder, allowing users to measure distance without relying on a separate rangefinding device.

HIKMICRO thermal clip-on attachments require a suitable mounting arrangement for the specific device and daytime riflescope.

Before purchasing, check:

• The external objective diameter of your existing riflescope.
• The required adapter or quick-release mounting system.
• The recommended daytime scope magnification range.
• Clearance between the clip-on, rifle and surrounding components.
• Any manufacturer requirements for alignment and calibration.

Mounting adapters are not necessarily included with every thermal clip-on. Check the individual product listing for the supplied accessories and any additional equipment required.

Both thermal clip-on attachments and dedicated thermal riflescopes use thermal imaging technology, but they offer different advantages.

Thermal Clip-On Attachments

A front-mounted thermal clip-on works with a compatible existing daytime scope, allowing the user to retain familiar optics and controls. This can be particularly useful when switching between conventional daytime observation and thermal imaging.

Dedicated Thermal Rifle Scopes

Dedicated thermal scopes incorporate their own viewing system and aiming functions, providing a standalone thermal riflescope solution without requiring a separate daytime optic.

The most suitable option depends on your existing equipment, mounting requirements and intended use.

Can I use a HIKMICRO thermal clip-on with my existing riflescope?

Potentially, provided the riflescope is compatible with the chosen clip-on and a suitable mounting adapter is available. Check objective dimensions, magnification and manufacturer guidance before purchasing.

Do HIKMICRO thermal clip-ons work in complete darkness?

Yes. Thermal imaging detects infrared radiation rather than relying on visible light, allowing thermal observation in complete darkness without an IR illuminator.

Do all HIKMICRO THUNDER clip-ons have laser rangefinders?

No. Integrated laser rangefinding is available on selected models. Check the individual product title and specifications to confirm LRF functionality.

Will a thermal clip-on affect my rifle's zero?

HIKMICRO designs compatible clip-on systems for repeatable mounting, but correct installation, alignment and verification are important. Follow the manufacturer's instructions and confirm the setup before use.

Are mounting adapters included?

Included mounting equipment varies by model and package. Review the individual product's What's in the Box section before ordering.