What size battery does this use?? The cr2032 does not appear to fit properly.

It takes a CR2032, but it looks like it takes a smaller size when you're looking at it. I've never seen a battery holder like this one (though there's nothing wrong with it) The battery holder has "claws" to grab the side of the cell and an O-ring to pull the claws together and have some pressure on the connection. Just insert the battery edge into the opening and slowly press it down all around until it seats, then screw the battery cover back on. You don't need tools but there is a slot in the cover for a coin if you have trouble opening it. You'll have to hold the brightness selector ring (it has numbers on it) in place while you unscrew the battery cover (or when screwing it back on) whether you do it by hand or with a coin. This should make for better electrical contact with the battery but it might make it more difficult to remove it. Perhaps they were thinking that you might be doing this in the dark and this would keep the battery from falling out until you were ready to pull it out but if you're using a laser collimator you're not likely to be doing this in the dark anyway. When you use a star to check the final results you won't need to have this along.

Can any one provide an explaination on how to put in the battery? without forcing it i cant see how nor do i see release screws?

I had to force mine. I consider it a design flaw. Good Luck

Can i use this my orion xt6 dobsonian?

definitely, it is made just for newtonians.

My unit came uncollimated and i do not know what tool can i use to move those 3 screws on a side. they are filled with pitch. what tool can i use?

Just remove the "pitch" with a small blade screwdriver and a pick. The screws can be accessed.

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Astromania Laser Collimator 1.25" for Newtonian Marca Telescope Alignment

Product ID: 27340155

Details

Brand
Astromania
Eye Piece Lens Description
Plossl
Finderscope
Reflex
Focus Type
Manual Focus
Item Weight
3 ounces
Optical Tube Length
1.25 inches

🔧Durable anodized aluminum body

🔴7 adjustable laser brightness levels

⚙️Precision triple-lens collimation system

€ 51.61

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Description

🔭 Align Like a Pro, See the Universe Like Never Before!

BUILT TO LAST - Premium metal construction ensures durability for every stargazing adventure.
COMPACT TRAVEL READY - Fits snugly in your palm and 1.25" focuser for effortless portability.
USER FRIENDLY GUIDANCE - Clear English & German instructions make expert collimation accessible to all.
CUSTOMIZABLE BRIGHTNESS - 7 laser intensity levels adapt perfectly to any lighting environment.
SWIFT PRECISE ALIGNMENT - Collimate your Newtonian telescope in minutes for crystal-clear views.

The Astromania Laser Collimator is a precision alignment tool designed for Newtonian telescopes with a 1.25" focuser. Featuring a robust anodized aluminum body, 7 adjustable red laser brightness levels, and a triple-lens system, it enables fast, accurate collimation for sharper, clearer astronomical views. Compact and travel-friendly, it includes easy-to-follow instructions in English and German, making it ideal for both beginners and seasoned astronomers seeking consistent, professional-grade telescope performance.

Specifications

ASIN	B01D8HMBCQ
Additional Features	7 brightness levels red laser beam, Designed for calibrating reflecting telescopes, Solid metal body, Triple cemented of Lens
Best Sellers Rank	#17 in Telescope Photo Adapters
Brand	Astromania
Coating	Ultra-High Transmission Coated
Compatible Devices	Reflective telescopes with a 1.25 inch focuser
Customer Reviews	4.5 4.5 out of 5 stars (857)
Exit Pupil Diameter	1.25 inches
Eye Piece Lens Description	Plossl
Field Of View	1.5 degrees
Finderscope	Reflex
Focal Length Description	1.25 inches
Focus Type	Manual Focus
Item Dimensions D x W x H	5.04"D x 1.28"W x 1.28"H
Item Highlight	Red Laser Collimator for Telescope, Telescope Laser Alignment Tool 1.25 Inch, 7 Red Bright Levels, 45 Degree Adjusting Disk
Item Weight	3 ounces
Manufacturer	Astromania
Manufacturer Part Number	SKU_AM_ZAA1025
Model Name	Alignment 1.25" Next Generation Laser Collimator for Newtonian Telescopes - with This Laser You can collimate Your Newtonian Telescope Just in Few Minutes（With Battery）
Model Number	10251
Mount	1.25 inches mount
Number of Items	1
Optical-Tube Length	1.25 inches
Power Source	Battery Powered
Zoom Ratio	1:1

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€ 51.61

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The delivery time was excellent, and the packaging was secure.

2 months ago

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Smooth transaction and product arrived in perfect condition.

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