{"product_id":"guide-td633-thermal-monocular","title":"Guide TD633 Thermal Monocular","description":"\u003cp\u003eThe Guide TD633 takes the same \u003cstrong\u003e640 × 512 12μm thermal sensor and 35mm F1.0 lens platform as the TD633L LRF model — without the integrated rangefinder, at a $200 lower price\u003c\/strong\u003e. For hunters who already carry a dedicated rangefinder or don't need on-target ranging, the TD633 delivers identical core thermal performance: 20 mK NETD, 50 Hz refresh, 1,950-yard detection, and a 10-hour runtime on a single replaceable 18650 cell. At $1,799 it sits in the same tier as the Pulsar Helion 2 XQ38 and AGM Asp-Micro TM-256, but with a finer 12 μm pixel pitch and Guide's 10-year US warranty.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch5 id=\"key-features\"\u003eKey Features\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e640 × 512 @ 12 μm sensor with 20 mK NETD\u003c\/strong\u003e — full 50 Hz refresh; finer pixel pitch than 17 μm 384-class entry monoculars\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e35 mm F1.0 germanium lens with 2.0x – 16x magnification\u003c\/strong\u003e — wide native FOV for scanning, 8× digital zoom for distant ID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1,800 m \/ 1,950 yd man-target detection\u003c\/strong\u003e — covers the long-range observation envelope from a handheld form factor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.36\" 1280 × 960 AMOLED display, 20 mm eye relief\u003c\/strong\u003e — sharper than the 800×600 displays common at this tier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable 18650 battery, 10-hour runtime\u003c\/strong\u003e — commodity cells (carry spares from any reputable vendor); no proprietary pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi (2.4G + 5G) + Bluetooth + 32 GB internal storage\u003c\/strong\u003e — onboard photo\/video recording with audio for shot review\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeven image palettes\u003c\/strong\u003e — White Hot, Black Hot, Red Hot, Green Hot, Iron Red, Blue Hot, Sepia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP67 weather sealing\u003c\/strong\u003e — rain, dew, and dust ingress rated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e376 g \/ 13.26 oz\u003c\/strong\u003e — pocketable handheld form factor for stand hunters and stalkers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e±6 diopter adjustment\u003c\/strong\u003e — per-eye prescription compensation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch5 id=\"how-it-compares\"\u003eHow It Compares\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs Guide TD633L\u003c\/strong\u003e (in-store sibling at $1,999): same sensor, lens, chassis, and battery — the L variant adds a built-in 1,000-yard laser rangefinder. Pick the TD633 if you already carry a dedicated rangefinder or don't need on-target ranging; pick the TD633L if you want both functions in one device.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs Pulsar Helion 2 XQ38\u003c\/strong\u003e (~$2,200–$2,500): comparable 384-class Pulsar with 17 μm pixel pitch; TD633 brings 640-class resolution at lower price.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs AGM Asp-Micro TM-256\u003c\/strong\u003e (~$700–$900): much cheaper but uses 256×192 sensor — meaningfully lower resolution. TD633 is a category up.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch5 id=\"ideal-for\"\u003eIdeal For\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePredator and big-game hunters\u003c\/strong\u003e running stand and stalk setups — the 35 mm lens covers most observation distances; the 1,950-yard detection lets you confirm activity well before commitment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHunters who already own a dedicated rangefinder\u003c\/strong\u003e — saves the cost of duplicate ranging hardware vs the TD633L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStand hunters running long sits\u003c\/strong\u003e — 10-hour runtime on a replaceable 18650 covers a full setup-to-pull-out window\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuyers stepping up from 256-class entry thermal\u003c\/strong\u003e — the resolution and detail jump from 256 × 192 to 640 × 512 is the largest single capability upgrade in the thermal monocular tree\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch5 id=\"accessories-compatibility\"\u003eAccessories \u0026amp; Compatibility\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eShips with dust-free cloth, hand strap, eye mask, 18650 battery + charger, 5V 2A power adapter, USB-A to USB-C cable, quick start guide, and warranty card\u003c\/li\u003e\n\u003cli\u003e10-year manufacturer warranty backed by Guide's US-based repair center in Texas\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Guide","offers":[{"title":"Default Title","offer_id":47814533513390,"sku":"TD633","price":1799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0620\/2494\/1742\/files\/td633_1.png?v=1777905401","url":"https:\/\/astrotelescopium.com\/products\/guide-td633-thermal-monocular","provider":"AstroTelescopium","version":"1.0","type":"link"}