Core Product Competitive Advantages

1. Dual Observation Models for Two Test Standards
   KR-X4A is equipped with monocular optical lens for basic routine inspection; KR-X4B upgrades to binocular stereoscopic microscope for fatigue-free long-time observation. Both versions support both capillary tube loading and flat slide hot table testing, compatible with powdery, granular and sheet crystalline samples without extra replacement accessories.
   2.High-Precision Closed-Loop Temperature Control

   Built-in platinum resistance temperature sensor delivers 0.1℃ minimum display resolution. Temperature repeatability is controlled within ±1℃ below 200℃ and ±2℃ above 200℃. Coarse & fine dual heating adjustment knobs realize linear ramp rate control from low-speed precise scanning to fast preheating, avoiding overshoot distortion of melting range data.
   3.Integrated Windshield Heating Stage & Fast Cooling Fan

   Sealed windshield structure isolates ambient airflow interference to stabilize heating field and reduce test error. Independent silent cooling fan rapidly cools the heating block from high temperature to room temperature within several minutes, cutting waiting time between batch samples and improving daily lab testing throughput.
   4.Ergonomic All-Copper Focus Adjustment Mechanism

   Full copper focusing guide rails with triple adjusting knobs (coarse focus, fine focus, height locking) achieve sharp, stable sample imaging. High-transmittance wide-angle eyepieces and clear objective lens eliminate blurring during long-term continuous observation of crystal melting state changes.
   5.Compact All-In-One Desktop Layout & Simple Maintenance

   Integrated host structure occupies small countertop space, easy to move and store. Detachable heating stage design facilitates residue cleaning after each test. All control switches (heating/cooling/dimming) are concentrated on front panel for one-handed operation without complex parameter setting steps.
   6.Complete Standard Matching Accessory Kit

   Comes with standard melting capillary tubes, glass slides, cover slips, sample tweezers and storage container. All consumables are included upon delivery, allowing immediate testing after unpacking without separate auxiliary part procurement.