LMBR R2 Shooting Chronograph for Airguns (with D-SUB9 Connection)
"The LMBR R2 Chronograph is a compact and highly practical tool for airgun shooters who want accurate velocity readings without complicated setup. Designed with a D-Sub9 connection for easy integration with external devices, it provides reliable shot data that’s invaluable when tuning rifles or monitoring consistency. Simple, effective, and purpose-built for airgun use, the R2 is a great addition to any serious shooter’s range kit."
The LMBR R2 Shooting Chronograph delivers accurate, reliable and effortless velocity measurement for airguns, air rifles, air pistols and even firearms. Designed with high-quality materials and a compact, shoot-through design, it eliminates the need for complex lighting rigs or fragile sensor shields. Offering both metric and imperial units, this latest version provides precise readings with an exceptional measurement error of just 1% at 1000 m/s.
Equipped with an angled spotting scope connection and a D-SUB9 interface for data transfer to a computer, the R2 caters to shooters who require dependable performance, detailed ballistic data and convenient digital integration. Whether you’re tuning an air rifle, testing ammunition, or logging performance over time, the LMBR R2 delivers professional-grade results in a user-friendly format.
- Velocity Range 1–1220 m/s (40–6500 f/s)
- Measurement Error ≤ 1% at 1000 m/s
- Current Consumption 100 mA
- Power Supply 2 × AA batteries (alkaline or rechargeable)
- Dimensions 130 × 67 × 88 mm (H × W × D)
- Shoot-Through Area 48 × 65 mm (H × W)
- Weight 547 g
- Units Metric & imperial
- Functions Velocity, kinetic energy, power factor, averages, min/max, deviation, rate of fire, bullet weight input, shot counter
- Calibration Adjustable sensor distance
- Memory Capacity 250 velocity measurements
- Data Transfer D-SUB9 output to computer
- Versatile Measurement Range – Suitable for airguns through to firearms, making it ideal for hobbyists, competitive shooters and professional tuners.
- Simple, Reliable Operation – Designed for ease of use, the R2 removes the need for special lighting conditions or cumbersome sensor housings.
- Dual Measurement Units – Offers both metric and imperial readouts, ensuring compatibility with any shooting discipline worldwide.
- Advanced Ballistic Functions – Calculates kinetic energy, power factor, rate of fire and key velocity statistics, helping optimise performance and consistency.
- Built-In Memory Storage – Save up to 250 measured velocities for tracking results, comparing pellets, or reviewing shot strings.
- Data Output Capability – Equipped with a D-SUB9 output, enabling quick transfer of performance data to a computer for analysis or record-keeping.
- Ergonomic Layout – User-friendly controls and clear display ensure quick setup and straightforward operation on the range or at home.
- Portable Design – Compact and battery-powered, the unit is easy to transport and suited to indoor, outdoor and field use.
LMBR R2 Shooting Chronograph for Airguns (with D-SUB9 Connection)
Are the LMBR range of Chronographs good?
Yes the LMBR Chronographs are extremely good and consistent with the readings. I personally have used a R2A for roughly 3 years and never had any issues other than the batteries going flat which are AA so easily available.
Can you Bluetooth or USB to transfer data across to a phone, Tablet or Computer?
Yes you absolutely can but the parts needed are sold separately,, Please see below for links to though items.
USB Cable - https://www.opticswarehouse.co.uk/usb-com-cable-converter-for-chronograph-r2-r2a?___store=default
Bluetooth Adapter - https://www.opticswarehouse.co.uk/lmbr-android-bluetooth-adaptor?___store=default
Are these easy to use?
Yes. Depending how much information you are actually wanting you can find the majority of information with just a touch of a couple of buttons. Instructions can also be found on each listing. There are also a few good videos on YouTube.
Where are these Assembled?
Poland
Are cases available for these?
Yes LMBR offer cases. Please see below links.
R2 – https://www.opticswarehouse.co.uk/lmbr-case-for-r2-chronograph?___store=default
R2A - https://www.opticswarehouse.co.uk/lmbr-case-for-r2a-chronograph?___store=default
Why does the display read range?
The display will only read range when something to slow to get a reading has gone through the sensors.
How do I change between Metric and Imperial?
Turn the device off, Press and hold down buttons S-2 & S-3 and turn the device back on. If you have been on Imperial it will now flash up Metric and Vise versa if you originally had Metric set.
How do I turn the backlight on and off?
Ensure the device is turned off, Press and hold down S-1, Turn the device on and now the backlight will be on. If you are wanting the light off make sure the device is turned off press down S-1 turn the device on now the backlight will be off.
How to change From High (Air Rifles) & Low (Firearms) settings?
To change settings between High & Low ensure the unit is turned off press and hold down S-1 & S-2 Turn on the device and it will change from the previous setting.
Are these real as my mate has a LMBR with different buttons and a USB port?
Yes these are 100% genuine and we get these directly from LMBR. LMBR offer these models in a few different variations, We just choose to buy them in this configuration.
Tactical Scope Shipping Policy
Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.
Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.
DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY – READ MORE: HERE
Note: The above DPD link is to our group partner site Optics Warehouse, with whom we share logistics and stock. Link opens in a new window.
Couriers
We use DPD, Royal Mail, TNT, and UPS courier services for all our UK and international orders. Once your order is dispatched, you will receive an email with your unique tracking number.
In-Store Items
These are items we have in stock and aim to dispatch within 1–2 working days. During busy periods, this may be delayed slightly. If you'd prefer to collect your item in person, please contact us in advance to arrange. Collection orders must be paid for beforehand.
Pre-Order Items
Pre-order items are typically out-of-stock or in limited supply. Purchasing a pre-order secures your item, and it will be dispatched within 24 hours of restock where possible. Check the product page for estimated restock dates. These dates may change, so staying in touch is advised.
International Delivery & Taxes
If your shipping address is outside the UK, you may incur import duties or taxes upon arrival in your country. These charges are your responsibility. Customs regulations vary, so please check with your local customs office. Some packages may be opened for inspection.
Need Help?
If you need assistance, call us at +44 (0)1803 611895 (Optics Warehouse) or email [email protected].
DPD Shipments & PIN Code Delivery
We have now introduced DPD Pin Code verification for all orders shipped via DPD. You will receive a PIN via email and text.
A valid email and mobile number must be provided at checkout. Emails will come from Riviera House 3PL. Please check spam/junk folders if not received.
Failure to present your PIN to the delivery driver will result in a failed delivery and rescheduling may be required.

