Digital Model 4000是美國rex gauge雷克斯生產的邵氏硬度計，分為4000-A型和4000-D型，其產品更為客戶喜愛，在整個橡膠件的生產過程中被廣泛使用，其產品特征如下：

Includes NIST Calibration Certificate  有NIST的證書

Conforms to ASTM D-2240, DIN 53505, ISO 868 and ISO 7619，按照美標ASTM-2240設計

set DWELL TIME，可以設置時間

18mm Diameter Presser Foot ，18mm直徑

Large LCD Display，大的LCD顯示屏

Maximum Reading Hold

Custom Made Carrying Case

Solid state circuitry with LCD display

High and low buttons for setting tolerance limits

AC Adapter and Batteries Included

Response speed is immediate

Holds reading until reset

0.1 resolution

Dial rotates up to 270°

Extra-Large Number Display

200 Measurement Readings can be stored inside the indicator and viewed on the LCD

Capable of USB and RS232 Comminication with Rex Approved Cables

Description: 
Tire hardness can be a critical factor in setting up a race car. A tire that's too hard may sacrifice traction, while a tire that's too soft may give great traction but wear too quickly, and an unmatched set of tires may result in an ill handling car. To properly set up a car, a measure of tire hardness is necessary, and the easiest and most cost-effective way to obtain such a measure is to use a durometer.
 
The Type A durometer as specified by ASTM D-2240 is the gauge used by tire manufacturers to measure hardness of tire rubber. The gauge gives readings of hardness in durometer points on a scale of 0-100, with 100 being the hardest reading. Some race tires come from the factory with the durometer hardness noted on the side wall, but factors such as ambient temperature, track temperature, usage, and age of the tire can change the actual hardness of the tire from the factory hardness.
 
Rex Gauge Company's 2100 Tire Durometer allows racers to quickly and accurately make checks of tire hardness. Unlike other "racing durometers" （which are just relative hardness gauges）, the Rex 2100 is calibrated to the ASTM D-2240 standard for durometer hardness and is traceable to N.I.S.T. Thus, the Rex 2100 allows comparison with the factory tire specifications.
 
The 2100 is a handheld gauge weighing only 4.2 oz. The indicator case, bezel, and barrel are all billet machined aluminum. Because of its billet construciton, and the fact that the durometer is manufactured in the USA by Rex Gauge Company （an industry leader in durometers for over 60 years）, the craftsmanship that goes into the 2100 is unsurpassed. The gauge is furnished with a carrying case and a one year warranty.
 

蘇州斯文克精密測量設備有限公司專業代理銷售美國雷克斯邵氏硬度計，rex gauge是全美最優秀的橡膠硬度計制造商，其生產能力和專業程度在整個行業內備受歡迎。同時我司代理日本三豐圓度儀、Deltronic量規、美國SPI 全系列量儀、美國thread check螺紋量規、PMC lone star石油螺紋規、德國IBR B200電子柱等，歡迎前來咨詢。