/ Precision Measuring Tools / Precision Hand Tools / Hardness & Surface Roughness Testers / Portable Hardness Testers / 3821 * Not actual product image 3821 Ultrasonic Portable Hardness Tester w/2kgf Probe, for Surfaces with Ra Below 200in, Rockwell C, B, A; Brinell; Vickers; Leeb and More 72978 3800 Hardness Testers Ultrasonic Portable Hardness Tester w/2kgf Probe, for Surfaces with Ra Below 200in, Rockwell C, B, A; Brinell; Vickers; Leeb and More The 3821 and 3822 units produce non-destructive hardness testing results and are built for the shop floor. They are effectively the same unit, differentiated by the probe type (2kg & 5 kg, respectively). The 2 Kg (3821) probe is suitable for surfaces with an Ra below 200 and the 5 Kg(3822) probe is suitable for surfaces with an Ra below 400. The other key feature about these units is that they perform very well on thin materials. For example, it can successfully measure hardness on steel parts which are down to 0.08" (2mm) in thickness. Features Downloads Product Testimonials Other similar products 3810A Digital Portable Hardness Tester 3811A Portable Hardness Tester 3814 Analog Bench Hardness Tester 3814E Digital Hardness Indicator Display, Replaces the dial on 3814 Analog Hardness Testers 3815 Twin Analog Hardness Tester 3816 Digital Bench Top Hardness Tester 3816B Digital Benchtop Rockwell Hardness Tester 3818 Superficial Rockwell Hardness Tester 3821 Ultrasonic Portable Hardness Tester w/2kgf Probe, for Surfaces with Ra Below 200in, Rockwell C, B, A; Brinell; Vickers; Leeb and More 3822 Ultrasonic Portable Hardness Tester w/5kgf Probe, for Surfaces with Ra Below 400in, Rockwell C, B, A; Brinell; Vickers; Leeb and More 3823 Digital Rockwell - Superficial Rockwell Hardness Tester 3824 Digital Rockwell - Superficial Rockwell Fully Automatic Hardness Tester 3825 Digital Motorized Brinell Hardness Tester 3831 Digital Rockwell Hardness Tester 3832 Digital Rockwell Hardness Tester with Touchscreen - Closed Loop Load Cell 3833 Superficial Rockwell Hardness Tester - Closed Loop with Load Cell 3834 Digital Twin Rockwell/Superficial Rockwell Hardness Tester - Closed Loop with Load Cell 3840A Micro Vickers Hardness Tester with Digicam - Manual Software 3840B Micro Vickers Hardness Tester with Digicam - Auto Software 3841A Micro Vickers Hardness Tester with Video cam, adapter and manual measurement software 3841B Micro Vickers Hardness Tester with Video cam, adapter and Auto-Measurement software 3841C Micro Vickers Hardness Tester with Video cam, adapter and Turret control w/manual measurement software 3841D Micro Vickers Hardness Tester with Video cam, adapter and Turret control w/ Auto-Measurement software 3842A Macro Vickers Hardness Tester with Auto-Turret, Video cam, adapter and manual measurement software 3842B Macro Vickers Hardness Tester with Auto-Turret, Video cam, adapter and Auto-Measurement software PR38 Diamond Indentor C Scale Contact Starrett Features Product Dimensions 13.7"x3.1"x5.9", 12 lbs. Both ultrasonic (UCI) and dynamic (leeb) testing in one instrument Non-destructive testing For thin parts down to .08" (2mm) 2kg (3821) and 5kg (3822) probe Extremely versatile with many options and configurations to handle all types of hardness testing applications Output software included Downloads 3821, 3822 Ultrasonic Hardness Testers (Bulletin 2112) Product Testimonials Write a product review Write a product review Comments* First Name* Last Name* Email* Occupation The information you provide will be used in accordance with the terms of our privacy policy. I agree to the privacy policy. Please provide the required information. Thank you for submitting a product testimonial on www.starrett.com. By submitting information to Starrett, you acknowledge and give express permission for the L.S. Starrett Company to use and share your statements.