Model comparison
Pulsar Thermion 3 vs Thermion 2 LRF: Should You Upgrade?
If you own a Pulsar Thermion 2 LRF, or you're choosing between it and the new Thermion 3 LRF, the decision turns on three things: rangefinder reach, run time and, for the 640 models, sensor detail. The Thermion 3 rangefinder reaches 1,200 m against 800 m, and memory doubles to 128 GB. The Thermion 3 LRF XR60 also adds a lot of detail over the 17 µm Thermion 2 LRF XP60. Upgrade if you shoot across open country and need that reach. If your Thermion 2 already covers your distances, it's still a capable scope.
What changed between generations
We've compared the 60 mm models of each generation, since they share the same lens size, 65 mm eye relief and 2560×2560 display. The diagram below shows the differences on Pulsar's US specifications.
The rangefinder is the headline change: 1,200 m against 800 m, with the laser now built into the scope body. Pulsar also says it locks on and returns readings faster, and adds a continuous scan mode and true horizontal distance. Run time roughly doubles on the XR60, rated at up to 14 hours against 7 hours for the 60 mm Thermion 2 models, and memory doubles to 128 GB.
The Thermion 3 is also about 50 mm shorter, at 391 mm against 442 mm, though it's around 140 g heavier at 1.3 kg. Both generations sit in standard 30 mm rings.
The sensor change matters most on the 640
The Thermion 2 LRF XP60 uses a 640×480 sensor with 17 µm pixels. The Thermion 3 XR60 keeps 640×480 but shrinks the pixels to 12 µm. Behind the same 60 mm lens, smaller pixels each see a smaller slice of the scene, as the diagram below shows.
By our estimate from the lens and sensor specs, each XP60 pixel covers about 2.8 cm at 100 m against about 2.0 cm on the XR60. That puts fox recognition at roughly 155–205 m on the XP60 and 220–290 m on the XR60, about 40% further. The trade-off is width: the XP60's bigger pixels give it an 18.1 m view at 100 m, against 12.8 m for the XR60.
The 1280 models tell a different story. The Thermion 2 LRF XL60 already used 12 µm pixels on a 1024×768 sensor, so the Thermion 3 LRF XT60 gives the same detail per pixel. What the XT60 adds is width, 25.7 m against 20.5 m at 100 m, plus the longer rangefinder and 8.5 hours of rated run time against 7. We cover how far the new models reach in how far the Pulsar Thermion 3 can identify a fox, pig or deer.
Controls and everyday use
The Thermion 3 moves the main buttons onto the eyepiece and adds a rotating controller ring for the menus. Magnification is set with a zoom ring, and focus moves to a wheel on top of the scope that either hand can reach. Recoil-activated recording now has three sensitivity settings. Pulsar itself notes that owners of earlier Thermions will need some time to adjust to the new layout.
Ballistics carry over. Both generations work with the Stream Vision Ballistics app, so the way you build rifle and ammunition profiles stays the same. Whichever scope you end up with, re-zero and confirm your holdover at the range before relying on it at night.
Upgrade, keep or buy new
The chart below follows the questions we'd ask a Thermion 2 owner.
Our view: upgrade if you regularly shoot pigs, dogs or deer across open country, where the 1,200 m rangefinder and, on the 640 models, the finer 12 µm sensor make a real difference. A Thermion 2 XP60 owner gains the most from moving to the XR60. An XL60 owner gains width, ranging and battery life, but not reach, so the case is weaker. If short run time is your only complaint, Pulsar's own advice is that a spare battery may make more sense than a new scope.
If you're buying new rather than upgrading, compare the current price of each generation before deciding; for most open-country hunters starting fresh, we'd choose the Thermion 3. The full model rundown is in our Pulsar Thermion 3 LRF review, and how the Thermion 2 compares with other brands is in Stellar 4.0 vs Pulsar Thermion 2 vs Nocpix ACE 2.
Compare Thermion 2 and Thermion 3
Check the current price and availability on each product page.
Thermion 3 LRF XR60 Thermion 3 LRF XT60 Thermion 2 LRF XP60 Thermion 2 LRF XL60Thermion 3 vs Thermion 2 LRF FAQ
Is the Thermion 3 XR60 better than the Thermion 2 LRF XP60?
For reach, yes. The Pulsar Thermion 3 LRF XR60 uses 12 µm pixels against 17 µm on the Thermion 2 LRF XP60, behind the same 60 mm lens, so by our estimate it recognises a fox at roughly 220–290 m against 155–205 m. It also adds a 1,200 m rangefinder and 14-hour rating. The XP60 keeps a wider 18.1 m view at 100 m.
Is the Thermion 3 XT60 better than the Thermion 2 LRF XL60?
It's wider and better equipped, but it doesn't reach further. Both the Pulsar Thermion 3 LRF XT60 and Thermion 2 LRF XL60 use 12 µm pixels behind a 60 mm lens. The XT60's 1280×1024 sensor gives a 25.7 m view at 100 m against 20.5 m, with a 1,200 m rangefinder against 800 m and 8.5 hours of rated run time against 7.
How much further does the Thermion 3 rangefinder reach than Thermion 2?
Pulsar rates the Thermion 3 LRF rangefinder at up to 1,200 m against 800 m on the Thermion 2 LRF, a 50% increase. Both maximums apply to large, reflective targets. Pulsar also says the new laser locks on and returns readings faster, and the Thermion 3 adds a continuous scan mode and true horizontal distance for angled shots.
What changed in the Thermion 3 controls?
The Pulsar Thermion 3 LRF moves its main buttons onto the eyepiece, adds a rotating controller ring for the menus, sets magnification with a zoom ring and puts focus on a top-mounted wheel either hand can reach. Pulsar notes that owners of earlier Thermion models will need a little time to adjust to the new layout before it feels natural.
Is the Pulsar Thermion 2 LRF still worth buying?
Yes, for the right hunter. The Pulsar Thermion 2 LRF XP60 and XL60 still offer a 60 mm lens, 65 mm eye relief, a 2560×2560 display and an 800 m rangefinder, which covers most night shooting. If you rarely range past 800 m and the price suits, it remains a capable scope. Compare current prices on both generations before deciding.
Do the Thermion 2 and Thermion 3 use the same ballistics app?
Yes. Both the Pulsar Thermion 2 LRF and Thermion 3 LRF work with the Stream Vision Ballistics app, which builds the rifle and ammunition profiles the scope's ballistic calculator uses. Moving to a Thermion 3, you'll still need to re-zero on the new scope and confirm the suggested point of aim at the range before relying on it.
Do Thermion 2 batteries fit the Thermion 3?
They're different packs. Pulsar lists the 60 mm Thermion 2 LRF models with a built-in battery plus a replaceable APS3 pack, while the Thermion 3 LRF uses a built-in plus a removable APS5 battery. Check with us before assuming any spare battery or charger from your Thermion 2 will suit a Thermion 3.
Is the Pulsar Thermion 3 bigger than the Thermion 2?
It's shorter but heavier. Pulsar's US specifications list the Thermion 3 LRF at 391 mm long and 1.3 kg, against 442 mm and 1.16 kg for the 60 mm Thermion 2 LRF models. Both use 30 mm rings and 65 mm eye relief, so the shorter body may give you more room to position the scope on a short rail.
This comparison is based on Pulsar's published US specifications for both generations; per-pixel and recognition figures are our estimates from those specs.