Pulsar MERGER LRF XP35 Thermal Binoculars - 35mm <25mK 640x480px 17um
The Pulsar Merger LRF XP35 is a seriously capable thermal binocular setup that gives you proper comfort for long scanning sessions, with a 640×480 sensor, ultra-sensitive <25mK NETD, and a smooth 50Hz refresh that keeps the image clean and easy to track. The dual-eyepiece design makes a huge difference for fatigue, and the built-in laser rangefinder takes all the guesswork out of distance when you’re scanning wide areas. With a 35mm F1.0 lens and detection out to around 1350m, it’s compact, sharp, and built for proper all-night observation without feeling like a brick in your hands.
-Nathan (Technical Advisor)
The Pulsar Merger LRF XP35 Thermal Binoculars deliver an unparalleled combination of compact design, wide field of view, and exceptional thermal performance. Despite being the smallest binoculars in the Pulsar Merger range, they feature a highly sensitive 640×480 Lynred sensor (<25 mK NETD), a fast 35mm f1.0 lens, and an extraordinary 17.8° field of view , the widest in the Merger line. With detection out to 1350m, a built-in precision laser rangefinder (accurate to ±1m at 1000m), and dual AMOLED HD displays, the XP35 ensures crisp, detailed images in any conditions. Rugged, ergonomic, and feature-packed, they offer 9 hours of continuous operation, intuitive controls, and advanced connectivity via the Stream Vision 2 app, making them a top choice for professional observation.
- Thermal Sensor 640×480, 17µm, <25mK NETD
- sNETD <18 mK
- Frame Rate 50 Hz
- Objective Lens 35mm f1.0
- Magnification 2–16x
- Field of View 17.8°
- Interpupillary Distance 63–74 mm
- Eye Relief 15 mm
- Display 1024×768 AMOLED
- Detection Range 1350m
- Video Recorder Yes, with audio
- Video Resolution 1024×768
- Video Format .mp4 / .jpg
- Built-In Memory 16 GB
- Wireless Protocol Wi-Fi
- Wireless Standard IEEE 802.11 b/g/n/ac (WPA)
- Frequency 2.4 / 5 GHz
- Protection Rating IPX7 (waterproof)
- Operating Temperature -25°C to +50°C
- Compatible Mounts 1/4″
- Supported App Stream Vision 2
- Output Voltage 3.7 V
- Battery Type Dual Li-Ion system (APS3 3.2Ah replaceable + 4.0Ah built-in)
- Battery Capacity 3200mAh (external) + 4000mAh (internal)
- Operating Time Up to 9 hours
- External Power Supply 5V, 9V (USB Type-C PD)
- Body Material Magnesium alloy
- Dimensions 165 × 133 × 68 mm
- Weight 830 g (with batteries)
- Small Footprint, Huge Performance – the most compact Merger binoculars with an ultra-wide 17.8° FOV for convenient scanning and enhanced situational awareness.
- Powerful Thermal Performance – 640×480, 17µm Lynred sensor with <25 mK NETD reveals fine details and provides identification out to 1350m.
- Sensitivity Amplification – three amplification levels with Pulsar’s filtration algorithms optimise image quality in all weather conditions.
- Built-In Laser Rangefinder – integrated precision LRF measures distances up to 1000m with ±1m accuracy.
- Comfortable & Ergonomic Design – classic binocular build with adjustable interpupillary distance (62–74mm) and well-placed controls for fatigue-free use.
- Advanced AMOLED Displays – dual HD screens deliver crisp detail and vivid colours, with a proximity sensor for standby mode and discreet operation.
- Extended Battery Life – dual battery system (4Ah built-in + 3.2Ah APS3) provides up to 9 hours of continuous operation.
- Colour Palettes for Any Scenario – eight thermal palettes including White Hot, Black Hot, Red Hot, Rainbow, and Sepia for versatile observation.
- Capture & Share Every Detail – built-in video recorder with audio, 16GB internal memory, and Stream Vision 2 cloud integration for sharing.
- Pulsar MERGER LRF XP35 Thermal Binoculars - 35mm <25mK 640x480px 17um
1. What resolution does it use?
It uses a 640×480 thermal sensor with a 17µm pixel pitch for solid image detail and reliable target separation.
2. How sensitive is it in bad weather?
It has a NETD of under 25mK, meaning it can pick up very small temperature differences in fog, rain, and low-contrast environments.
3. What is the detection range?
It can detect heat signatures up to around 1350 metres depending on conditions and target size.
4. Does it have a laser rangefinder?
Yes, it includes a built-in LRF with a measuring range up to about 1000m and ±1m accuracy.
5. What magnification does it offer?
It provides 2–16x magnification with digital zoom for closer inspection of targets.
6. Why choose binoculars instead of a monocular?
The dual-eyepiece design reduces eye strain significantly, making long observation sessions more comfortable and stable.
7. How long does the battery last?
Up to around 9 hours using its dual battery system (internal + removable APS3).
8. Is it weatherproof?
Yes, it’s IPX7 rated, so it can handle heavy rain and harsh outdoor conditions.
9. Does it record video and photos?
Yes, it has built-in recording with 16GB internal memory for images and video capture.
10. What’s the main advantage of the XP35 version?
It’s the most compact Merger model, prioritising portability and wide field of view for fast scanning while still keeping strong thermal performance.
- Pulsar 3 year warranty
Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.
Please Note: Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.
Please Note: DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY - READ MORE: HERE
COURIERS
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We use DPD , RoyalMail, TNT and UPS courier services for all our orders whether dispatching to the UK or International. As soon as your order has been dispatched you will receive an email with your unique tracking number. We are unable to add delivery notes to your order regarding safe spaces or neighbour deliveries. If you require this service it can be arranged directly with the courier once the parcel is in their network.
IN-STORE ITEMS
These are items that we have in-stock and will be sent out for delivery as soon as possible. We aim to dispatch all orders within 1-2 working days, but during busy periods dispatch may be delayed by a day or so. If you would like to purchase the item in person then please call ahead to arrange an appointment: 01803 611 895.
PRE-ORDER ITEMS
These are usually items that are going to be out-of-stock for a number of weeks or are in short supply. By purchasing a Pre-Order Item you are in effect paying a deposit for your goods. As soon as the item is back in stock yours will be dispatched within 24 hours where possible. Please see individual product pages for current back-in-stock dates. In rare occasions, these dates can be changed by the manufacturers so we recommend staying in contact with Optics Warehouse depending on the product lead time.
INTERNATIONAL DELIVERY & TAXES
In addition to the above information If your delivery address is outside of the UK you may be subject to import duties and taxes, which are levied once a shipment reaches your country. Any such additional charges for customs clearance must be borne by you. You should note that customs policies vary widely from country to country. Optics Warehouse advises each customer to contact their local customs office for further information if they are in any way unsure of local duties or liabilities. Cross border shipments are subject to opening and inspection by customs authorities which means some packages may be opened and re-sealed.
NEED HELP?
If you require any further assistance, please call us on 01803 611 895 or email sales@opticswarehouse.co.uk
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A NOTE ABOUT DPD SHIPMENTS:
- Please be advised that we have now introduced DPD Pins to all DPD orders from Optics Warehouse.
- If your shipment is being sent from Optics Warehouse via DPD you will be sent a Pin Code that must be shown to the courier upon delivery.
- The pincode is sent VIA email & TEXT message. A valid email address and mobile number must be provided at checkout. Emails will be sent from "Riviera House 3PL" - if you do not receive this email please check your junk or spam folders.
- Please note that if you do not display your pin code to the courier driver upon delivery, you will not be able to have your item and you may need to schedule another delivery date to show a valid pin.
- Please view the attached slides HERE for further information!
















