Description
Topcon LS-B20W Magnetic Mount Machine Receiver — Wireless Grade Checking
The Topcon LS-B20W is a compact, magnetic-mount laser receiver for excavators and small earthmoving machines. Stick it on the dipper arm, bench in and the bright indicators show above, below or on grade — or view grade wirelessly in the cab through the Topcon Laser Manager Bluetooth app. With precision down to ±2 mm, it's equally at home on trenching, footings and drainage work. Because it's quick to remove, it can go back in the ute at the end of the day to prevent theft.
Key Features
- Bluetooth wireless: Remote display via Laser Manager app (up to 20 m).
- Magnetic or screw mount: Fast set-up and easy removal.
- High precision: Four modes from ±2 mm to ±30 mm.
- One-touch on-grade matching.
- Low battery warnings for both the rotary laser and the receiver.
- Integrated CAN support.
- Rugged: IP66 rated, ISO 13766-1 certified, built for wet and dirty sites.
Specifications
| Brand | Topcon |
|---|---|
| Model | LS-B20W |
| Part number | 1063525-04 |
| Detection range | 120 mm |
| Detection angle | 270° |
| Detection precision | ±2 / ±6 / ±12 / ±30 mm (4 modes) |
| Laser detection range | 700 m diameter |
| Power | 3 × AA batteries |
| Operating time | 30 hours |
| Wireless range | 20 m |
| Interface | RS-485 / CAN / Bluetooth |
| On-grade matching | 40 mm |
| Dust/water rating | IP66 |
| Application | Grade checking |
| Warranty | 1 year (Topcon Australia) |
Frequently Asked Questions
What is the difference between the LS-B20 and LS-B20W?
Both are magnetic-mount grade checking receivers with the same 120 mm window and ±2 mm top precision. The LS-B20W adds Bluetooth, so the operator can see grade on a phone or tablet in the cab via the Topcon Laser Manager app, plus RS-485/CAN connectivity. The LS-B20 has longer battery life (100 hours vs 30).
Should I choose the LS-B20W or an LS-B200 series receiver?
The LS-B20W suits excavators doing trenching, footings and drainage where quick grade checks are needed. For dozers and graders, or excavators working to grade all day, the LS-B200 series offers 360° detection and a larger window.
How does the magnetic mount work?
Strong magnets hold the receiver on a steel dipper arm or bucket for fast set-up, and it lifts straight off at the end of the day to prevent theft. A screw mount option is also available.
Which lasers does it work with?
It detects rotating lasers across a 700 m working diameter and pairs well with Topcon rotating lasers such as the RL-H5A, RL-HV series and RL-200 2S.
What warranty does the LS-B20W have?
Topcon Australia covers receivers for 1 year from the date of purchase. Keep your proof of purchase for any claim. Damage from drops or misuse is not covered.
Shop with Confidence
✅ 30-Day Returns — Not happy? Return it within 30 days for a full refund, no questions asked.
🚚 Fast Dispatch — In-stock orders dispatched same or next business day.
🔧 Expert Support — Our team knows tools. Call or email us if you need help choosing the right product.
All our orders are carefully packaged and shipped with Australia Post.
PROCESSING TIMES
Your order will be processed within 1-2 Business days. Most orders are shipped within 1 business day.
SHIPPING TIMES (AUSTRALIA)
Standard 1-5 Business Days
Express 1-3 Business Days
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at jasonh@hornibrooks.com.au. Please note that returns will need to be sent to the following address: 2-3, 147 Marshalltown Rd Geelong, VIC, Australia 3216
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at jasonh@hornibrooks.com.au.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
European Union 14 day cooling off period
Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at jasonh@hornibrooks.com.au.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.