BLACKROBOT Universal Joint Set 3PCS, 1/2" 3/8" 1/4" Drive Socket Adapter Set, Premium CR-V Steel Swivel Socket Set, Access Fasteners at Any Angle

INSTANT HEART RATE & INTERVAL CALCULATIONS Measure EKG rhythms without manual counting. Slide the caliper tips into position and immediately read BPM and timing intervals on the clear LCD display for faster, more confident interpretation. | ONE-HAND ERGONOMIC OPERATION Designed for clinical workflow. Smooth sliding arms and balanced grip allow precise placement with one hand so you can review strips, chart, and care for patients simultaneously. | DIGITAL + MANUAL DUAL MODE Works like a traditional ECG caliper when you want visual comparison, or switch to digital measurement for automatic calculations. Perfect for students learning rhythms and professionals verifying accuracy. | HIGH PRECISION MEDICAL ACCURACY Measures 30999 BPM with 0.4 ms resolution and 8 ms accuracy. Detect subtle rhythm differences quickly and reduce guesswork when analyzing telemetry or printed EKG strips. | BUILT FOR DAILY CLINICAL USE Embedded needles, adjustable tightness knob, moisture and dust resistance (IP54), auto-shutoff, and easy reset calibration. Includes 6-month warranty for dependable long-term use in hospitals or classrooms.