The 770065 is an ESD verification tester designed to perform periodic test limit verification of SCS 724 Workstation Monitors and 725 Portable Wrist Strap Monitors without requiring removal from the workstation. The tester features an operator rotary switch with multiple resistance settings (1.5M LOW at 1.33 MO, 1.5M PASS at 1.69 MO, 10M PASS at 8.45 MO, 10M HIGH at 11.5 MO, 35M PASS at 29.4 MO, and 35M HIGH at 40.2 MO), a ground clip toggle switch with SHORT (<1 O), 10M PASS (4.99 MO), and 10M HIGH (11.5 MO) settings, and operates over a temperature range of 10 to 35°C. The device is NIST traceable and meets ANSI/ESD S20.20 and ESD TR53 compliance standards, making it essential for organizations requiring annual calibration verification of ESD monitoring equipment in critical manufacturing and assembly environments.