SCREWDRIVER AC/DC VOLTAGE TESTER USER’S MANUAL ST400 Please read this manual carefully and thoroughly before using this product.
KEY FEATURES • Visual indication of 80 to 250V (AC or DC) • Easy to use; no test leads or battery needed • UL approved • Double-insulated housing • Pocket clip SAFETY INSTRUCTIONS DANGER Electric Shock Risk Ꮨ Warning Ꮨ DANGER Electric Shock Risk To avoid possible electric shock or personal injury, and to avoid damaging the tester or the equipment being tested: • Do not use the ST400 in any way not detailed in this manual or the tester's safety features may be compromised.
• The ST400 cannot detect the presence of voltages below 110V. Use caution whenever detecting AC voltages above 42VACRMS or DC voltages above 60VDC. Both pose a shock hazard. • Before using the tester, inspect the case. Do not use the ST400 if the case is damaged. Look for cracks or missing plastic. Pay particular attention to the insulation around the connectors. • Do not operate the tester around explosive gas, vapor, or dust. • When using the probes, keep your fingers behind the finger guards.
2. Ground the tester by touching your thumb to the metal button at the end of the screwdriver’s handle. DANGER Electric Shock Risk Ꮨ Warning Ꮨ DO NOT TOUCH the exposed metal portion of the screwdriver tip while it is contact with the live side of an outlet or a current-carrying conductor. 3. If voltage is detected, the neon bulb inside the clear portion of the handle will glow. If you are testing outdoors or in a brightly lit area, shield the handle with your hand to provide a better view of the bulb.
WARRANTY INFORMATION General Tools & Instruments’ (General’s) ST400 Screwdriver AC/DC Voltage Tester is warranted to the original purchaser to be free from defects in material and workmanship for a period of one year. Subject to certain restrictions, General will repair or replace this instrument if, after examination, the company determines it to be defective in material or workmanship. The warranty period begins on the date of purchase. You are encouraged to register your product online.
Acceptance of the exclusive repair and replacement remedies described herein is a condition of the contract for purchase of this product. In no event shall General be liable for any incidental, special, consequential or punitive damages, or for any cost, attorneys’ fees, expenses, or losses alleged to be a consequence of any damage due to failure of, or defect in any product including, but not limited to, any claims for loss of profits. Register now at www.generaltools.
RETURN FOR REPAIR POLICY Every effort has been made to provide you with a reliable product of superior quality.
GENERAL TOOLS & INSTRUMENTS 80 White Street New York, NY 10013-3567 PHONE (212) 431-6100 FAX (212) 431-6499 TOLL FREE (800) 697-8665 e-mail: sales@generaltools.com www.generaltools.com ST400 User’s Manual Specifications subject to change without notice ©2013 GENERAL TOOLS & INSTRUMENTS NOTICE - WE ARE NOT RESPONSIBLE FOR TYPOGRAPHICAL ERRORS.
