Birzman's gauges are indivudually designed for specific models with different structures and are therefore not interchangeable. 

Please click on the link below to the video demonstrating the replacement of an O-ring. 
https://youtu.be/zu8LJLtaN5g

To purchase spare replacement o-rings, please contact a Birzman distributor in your region. 

The Push & Twist head is compatible with Presta and Schrader valves under the same steps.

For step-by-step instructions, please visit the link below:
https://youtu.be/sy7udf-EyTA

For detailed instructions on using the Snap-It Apogee head, please see the video below.
https://youtu.be/QBC6UENlGMY

We could not guarantee the compatibility of the Snap-It Apogee with non-Birzman pumps due to different specifications.
We would recommend purchasing the entire Birzman pump instead. 

The Snap-It Apogee head is made in accordance with the valve standard of 4.5 to 5 mm. 

If the length of your valve does not follow this standard, please use a Birzman valve extender:
http://www.birzman.com/products.php?uID=2

The Push & Twist valve head is compatible with both Presta and Schrader under the same simple steps: 

Insert, PUSH the collar down and TWIST it by one turn to secure engagement; then simply pull back the collar to disengage. 

The Snap-It Pro and Snap-It Elite valve heads are identical in their internal structures. The main difference lies in their appearances.
Snap-It Elite is a fully CNC machined version that is only sold as a single and comes with interchangeable end caps, making it compatible with pumps from both Birzman and from other brands.

The Snap-It Pro head is made in accordance with Presta valve standard of 4.5mm (threads) / 12mm (body & threads).
For more information, please refer to image here: https://www.birzman.com/support_6.php?Mode=Post_Send&Key=46

The Snap-It Elite head is made in accordance with Presta valve standard of 4.5mm (threads) / 12mm (body & threads).
For more information, please refer to image here: https://www.birzman.com/support_6.php?Mode=Post_Send&Key=46

The Tube Cutter has already been equipped with an extra blade, stored inside the handle. 
Remove the cap at the end and you should be able to find it. 

For further top-ups after the default set up, please contact a local Birzman distributor. 

We would advise you to source a local certified calibration center to carry out this process as they would have the specific machine and equipment required to re-calibrate the wrench.

The standard procedure is to re-calibrate after one year as suggested, however it would also depend variants such as frequency of use. 

Due to the 'pocket' nature of the product, the product is intended for indicating the current torque applied, and does not have an adjustment feature for setting a desired torque value. 

Navigator SB features a 19 x 9 cm (7.48 x 3.54 in) touch screen window compatible with up to 6.8" displays. 

The height of water bottle (BM10-PO-WB-01-W/K) is 18.5cm.

All of Birzman products are proudly made in Taiwan, and designed by the in-house team here at the HQ. 

Please contact a Birzman distribution partner in your region, who would help refer you to the nearest stockist. 

For the complete list of Birzman distributors, please see: http://www.birzman.com/about_2.php

Please contact the shop from which you made your purchase, or a Birzman distributor in your region: http://www.birzman.com/about_2.php

For Warranty Policy, please see: http://www.birzman.com/support.php