Alarm systems with cameras
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TTArtisan 25mm F2.0 APS-C Manual Camera Lens Portable Cost-effective Camera Lens Portrait Humanity Street Still-Life Lens for Sony E Mount

• Human Eyesight: The equivalence of a full frame is about 37.5mm,which is close to the natural field of human eyesight, and meets the shooting needs of various subjects from daily photography to visual art creation.
• Free to Carry: The compact design improves portability, making it con- venient for photographers to take it with them from time to time. The weight is about 166~189g.

OM SYSTEM M.Zuiko Digital ED 150-600mm F5.0-6.3 IS Ultra Tele-Zoom Lens Compatible With Olympus, OM SYSTEM and Panasonic Micro Four Thirds Cameras

• The must-have lens for birding and wildlife photography
• Unrivaled zoom hand-held reach equivalent to 300-1200mm (35mm equivalent) and up to 2400mm using teleconverter

TTArtisan 25mm F2.0 APS-C Manual Camera Lens Portable Cost-effective Camera Lens Portrait Humanity Street Still-Life Lens for Nikon Z Mount

• Human Eyesight: The equivalence of a full frame is about 37.5mm,which is close to the natural field of human eyesight, and meets the shooting needs of various subjects from daily photography to visual art creation.
• Free to Carry: The compact design improves portability, making it con- venient for photographers to take it with them from time to time. The weight is about 166~189g.

TTartisan 50mm F2 Manual Focus Lens, Compatible with Fuji X-mount Cameras X-T4 X-T3 X-E3 X-E3 X-T30 X-100 X-S10 X-PRO3 X-T2 X-PRO1 X-PRO2 X-H1 X-T1 X-T10 X-T2 X-T3 X-T20 X-A1 X-A10 (Black)

• Portrait-length Lens: The TTartisan 50mm F2 Lens is designed for FUJIFILM X-mount mirrorless cameras. The lens is compact with a weight of about 200g, making it ideal for street photography and other everyday shooting applications.
• Bright Aperture: Bright f/2 maximum aperture suits working in low-light conditions and also affords greater control over the depth of field. Additionally, a 10-blade diaphragm is featured and contributes a smooth bokeh quality.

7artisans 24mm F1.4 APS-C Manual Prime Lens Large Aperture Compatible for Sony E-mount Mirrorless Cameras A6500 A6300 A6100 A6000 A5100 A5000 A9 NEX 3 NEX 3N NEX 5 NEX 5T NEX 5R NEX 6 7

• 【More practical 24mm】APS-C 24mm f/1.4 equivalent to 135 format at about 35mm. The angle of view is the same as human eye perspective and the photos taken with this lens will let someone experience a sense of story and authenticity. The lens provides a wider field of view of the subject, which is a focal length suitable for daily shooting.
• 【Different Environmental Portraits】Taking portraits with scenery focuses on more elements of the picture, and the creation is broader. The photos can provide more information and extend the perspective, and can also use the scene to set off the personality of the subject and enhance the creativity of the subject.

TTArtisan 25mm F2.0 APS-C Manual Camera Lens Portable Cost-effective Camera Lens Portrait Humanity Street Still-Life Lens for Canon RF Mount

• Human Eyesight: The equivalence of a full frame is about 37.5mm,which is close to the natural field of human eyesight, and meets the shooting needs of various subjects from daily photography to visual art creation.
• Free to Carry: The compact design improves portability, making it con- venient for photographers to take it with them from time to time. The weight is about 166~189g.

VILTROX 56mm F1.4 Autofocus Lenses for Sony E Mount Camera Lenses Camera Lenses Compatible with Sony a7 a7C a7III a7RIII a7RIV a7RV a9 a6100 a6400 a6700

• VILTROX 56mm F1.4 Autofocus Lenses for Sony E Mount Camera Lenses Camera Lenses Compatible with Sony a7 a7C a7III a7RIII a7RIV a7RV a9 a6100 a6400 a6700

Sony SEL14F18GM | Full Frame FE 14mm F1.8 GM - Premium G Master Series Prime Lens Black

• INCREDIBLY SHARP: Two XA (extreme aspherical) elements along with two ED (Extra Low dispersion), one Super ED and one aspherical element ensure outstanding resolution in this F1.8 prime lens delivering high corner-to-corner resolution and beautiful bokeh, making this an excellent full frame lens for landscapes, starscapes, portraits and videography.
• BEAUTIFULLY SMOOTH BACKGROUNDS: A circular 9-blade aperture on this 14mm lens creates beautiful circular background bokeh defocus effects with a large F1.8 aperture.

Meike 35mm f0.95 Large Aperture Manual Focus Lens Compatible with Fujifilm X Mount Mirrorless Cameras X-T1 X-T2 X-T3 X-T4 X-T10 X-T20 X-T100 X-T200 XPro1 X-S10

• Constructed of 10 elements in 7 groups
• APS-C Angle of view: Diagonal 44.2°, aperture range: f0.95 - f16

VILTROX 35mm f/1.8 F1.8 STM Auto Focus Full Frame Prime Lens for Sony FE-Mount A7II A7III A7RIII A7SIII A7II A7RIV A9 A6600 A6500 A6400 A6300 A6100 A6000 A5100 A7III A7RIII A7RIV A7SIII FX3 ZV-E10

• 🌼Full-frame Lens: Covering a wide-angle perspective, this compact 35mm will pair nicely with Sony's full-frame E-mount cameras. It can also be used on APS-C format cameras where it will provide a 52.5mm equivalent focal length.
• 🌼STM Stepping Motor: STM+ lead screw type focus motor for fast, accurate and quiet capture of the focus subject. Additionally, an internal focusing design maintains the overall lens length during use for improved handling and quicker response.

TTArtisan 25mm F2.0 APS-C Manual Camera Lens Portable Cost-effective Camera Lens Portrait Humanity Street Still-Life Lens for Sony E Mount

• Human Eyesight: The equivalence of a full frame is about 37.5mm,which is close to the natural field of human eyesight, and meets the shooting needs of various subjects from daily photography to visual art creation.
• Free to Carry: The compact design improves portability, making it con- venient for photographers to take it with them from time to time. The weight is about 166~189g.

OM SYSTEM M.Zuiko Digital ED 150-600mm F5.0-6.3 IS Ultra Tele-Zoom Lens Compatible With Olympus, OM SYSTEM and Panasonic Micro Four Thirds Cameras

• The must-have lens for birding and wildlife photography
• Unrivaled zoom hand-held reach equivalent to 300-1200mm (35mm equivalent) and up to 2400mm using teleconverter

TTArtisan 25mm F2.0 APS-C Manual Camera Lens Portable Cost-effective Camera Lens Portrait Humanity Street Still-Life Lens for Nikon Z Mount

• Human Eyesight: The equivalence of a full frame is about 37.5mm,which is close to the natural field of human eyesight, and meets the shooting needs of various subjects from daily photography to visual art creation.
• Free to Carry: The compact design improves portability, making it con- venient for photographers to take it with them from time to time. The weight is about 166~189g.

TTartisan 50mm F2 Manual Focus Lens, Compatible with Fuji X-mount Cameras X-T4 X-T3 X-E3 X-E3 X-T30 X-100 X-S10 X-PRO3 X-T2 X-PRO1 X-PRO2 X-H1 X-T1 X-T10 X-T2 X-T3 X-T20 X-A1 X-A10 (Black)

• Portrait-length Lens: The TTartisan 50mm F2 Lens is designed for FUJIFILM X-mount mirrorless cameras. The lens is compact with a weight of about 200g, making it ideal for street photography and other everyday shooting applications.
• Bright Aperture: Bright f/2 maximum aperture suits working in low-light conditions and also affords greater control over the depth of field. Additionally, a 10-blade diaphragm is featured and contributes a smooth bokeh quality.

7artisans 24mm F1.4 APS-C Manual Prime Lens Large Aperture Compatible for Sony E-mount Mirrorless Cameras A6500 A6300 A6100 A6000 A5100 A5000 A9 NEX 3 NEX 3N NEX 5 NEX 5T NEX 5R NEX 6 7

• 【More practical 24mm】APS-C 24mm f/1.4 equivalent to 135 format at about 35mm. The angle of view is the same as human eye perspective and the photos taken with this lens will let someone experience a sense of story and authenticity. The lens provides a wider field of view of the subject, which is a focal length suitable for daily shooting.
• 【Different Environmental Portraits】Taking portraits with scenery focuses on more elements of the picture, and the creation is broader. The photos can provide more information and extend the perspective, and can also use the scene to set off the personality of the subject and enhance the creativity of the subject.

TTArtisan 25mm F2.0 APS-C Manual Camera Lens Portable Cost-effective Camera Lens Portrait Humanity Street Still-Life Lens for Canon RF Mount

• Human Eyesight: The equivalence of a full frame is about 37.5mm,which is close to the natural field of human eyesight, and meets the shooting needs of various subjects from daily photography to visual art creation.
• Free to Carry: The compact design improves portability, making it con- venient for photographers to take it with them from time to time. The weight is about 166~189g.

VILTROX 56mm F1.4 Autofocus Lenses for Sony E Mount Camera Lenses Camera Lenses Compatible with Sony a7 a7C a7III a7RIII a7RIV a7RV a9 a6100 a6400 a6700

• VILTROX 56mm F1.4 Autofocus Lenses for Sony E Mount Camera Lenses Camera Lenses Compatible with Sony a7 a7C a7III a7RIII a7RIV a7RV a9 a6100 a6400 a6700

Sony SEL14F18GM | Full Frame FE 14mm F1.8 GM - Premium G Master Series Prime Lens Black

• INCREDIBLY SHARP: Two XA (extreme aspherical) elements along with two ED (Extra Low dispersion), one Super ED and one aspherical element ensure outstanding resolution in this F1.8 prime lens delivering high corner-to-corner resolution and beautiful bokeh, making this an excellent full frame lens for landscapes, starscapes, portraits and videography.
• BEAUTIFULLY SMOOTH BACKGROUNDS: A circular 9-blade aperture on this 14mm lens creates beautiful circular background bokeh defocus effects with a large F1.8 aperture.

Meike 35mm f0.95 Large Aperture Manual Focus Lens Compatible with Fujifilm X Mount Mirrorless Cameras X-T1 X-T2 X-T3 X-T4 X-T10 X-T20 X-T100 X-T200 XPro1 X-S10

• Constructed of 10 elements in 7 groups
• APS-C Angle of view: Diagonal 44.2°, aperture range: f0.95 - f16

VILTROX 35mm f/1.8 F1.8 STM Auto Focus Full Frame Prime Lens for Sony FE-Mount A7II A7III A7RIII A7SIII A7II A7RIV A9 A6600 A6500 A6400 A6300 A6100 A6000 A5100 A7III A7RIII A7RIV A7SIII FX3 ZV-E10

• 🌼Full-frame Lens: Covering a wide-angle perspective, this compact 35mm will pair nicely with Sony's full-frame E-mount cameras. It can also be used on APS-C format cameras where it will provide a 52.5mm equivalent focal length.
• 🌼STM Stepping Motor: STM+ lead screw type focus motor for fast, accurate and quiet capture of the focus subject. Additionally, an internal focusing design maintains the overall lens length during use for improved handling and quicker response.

Linux Mint 21.3 Cinnamon for Beginners: Unlock the Power and Simplicity of Your PC

Linux Basics for Hackers , Getting Started with Networking, Scripting, and Security in Kali

Linux Pocket Guide 3e: Essential Commands

The Complete Linux Admin's Notebook. For Linux Unix systems admins. Take notes when doing tasks, shell scripting, Including a command guide ... tasks, & shell scripting. Paperback edition.

Getting Started Becoming a Master Hacker: Hacking is the Most Important Skill Set of the 21st Century! (Linux Basics for Hackers)

Linux Commands By Example: A straight and practical guide to learn Linux commands rapidly

Linux Command Line and Shell Scripting: A Comprehensive Guide to Mastering Linux Command Line

Learning KORN Shell Fundamentals

The Linux Command Line, 2nd Edition: A Complete Introduction

Linux for Absolute Beginners: An Introduction to the Linux Operating System, Including Commands, Editors, and Shell Programming

Air Quality Monitor Range 400~5000PPM CO2 Detector Fast Stable Reading Automatic Detection Home Farm Planting Use (White)

• FOR PLANTING AND LABORATORY: Widely used in agricultural planting, greenhouse planting, production warehouse, material processing laboratory, family, etc.
• SMICONDUCTOR DETECT AIR QUALITY: Using semiconductor detection technology, which can determine air quality problems more accurately, very practical

Zep High Output Chemical Sprayer 1.1 32 Ounce U43010

• EZ ID labels included to identify bottle contents
• Easy to read graduated scale for measuring and mixing

Microcentrifuge Tube, 1.5ml High Pressure Resistant Mirco Test Tube 500PCS for Laboratory

• Snap Cap: The beveled flat cap design of this centrifuge tube opens and closes more comfortably, giving you a good pressing experience.
• Clear Scale: These centrifuge tubes have a frosted surface and a clear and accurate volume scale for easy reading of your numbers.

4000 rpm Mini Centrifuge, Includes 8-place Micro Tube Rotor and 16X2-place PCR Strip Rotor for 0.2, 0.5, 1.2, 2ml with 2 Adaptor (Fixed speed)

• ✔MULTIPLE SPEEDS: The micro centrifuge has 2 fixed speeds ---- 4,000rpm and 12,000rpm --- making it ideal for your different projects’ needs. The three centrifugal forces --- 810Xg and 6652Xg --- range widely from low to high speeds.
• ✔Mini Centrifuge: Low noise, smooth operation, durable and maintenance-free brushless DC motor, safe and reliable.

Benchmark Scientific C2570 Adapter Pack for 5 mL Tubes in 15 mL Cavity

• Adapter pack for 5 mL tubes in 15 mL cavity
• For use with myFuge centrifuge (sold separately)

JIAN YA NA 220V Professional Microcentrifuge Mini Laboratory Centrifuge Mini4K 4000rpm

• 1. Input voltage: 220V
• 2.Power: 30VA

Steinberg Systems Centrifuge Microcentrifuge Microfuge (16 x 0,5 ml, 15 W, RCF 700 g, 3.500 RPM, 18,5 x 16 x 12,5 cm, incl. Accessories)

ORILAO Centifuge Centrifugal Casting Machine Apparatus Crucibles Flask JT-08

• ✤✤✤Durable and reliable, our casting apparatus easily handles most alloys with high melting-points in order to get casting like denture frame,inlay,crown bridge.
• ✤✤✤This item features a heavy duty spring and an adjustable balance mechanism and comes with 3 cradles and a pair of tongs.

ORILAO Lab Surveyor Table Fully Adjustable Survey Visualizer with 7Pcs Spindle

• Unique design and can be fully adjustable.
• Complete set with hand tool holder precise angle.

LJZLJZ 25W Timing Electric Centrifuge, 4000 R/Min Stepless Speed Regulation, Serum Separate Laboratory Medical Practice Desktop Centrifuge Machine, 6×20Ml

• 【FIXED-ANGLE ROTOR & 6 TUBES】Electric centrifuge includes fixed-angle rotor for providing 1790×g relative centrifugal force and shortening centrifugation time to separate liquid from solid particles or liquid mixture of different density in medical & chemical experiments; 6pcs centrifuge tubes for offering 20ml capacity per tube
• 【SPEED ADJUSTMENT & TIME SETTING】Equipped with 2 rotary knobs for adjusting speed and setting time, provide maximum rotate speed up to 4000r/min and timing range up to 60min for meeting your different needs