Cheap And Discounts DC 5V Voltage Internal Resistance Tester 0.001V~45.00V 0.1m Ω~6.999 Ω Data Recorder with 4PIN signal acquisition line TS457 Wholesale. Buy Directly From Merchant Outil Exploit Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.