Rack-A-Tiers 99001 Ultimate AC...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$55.03
Rack-A-Tiers 99001 Ultimate AC Sensor, 50-1000V AC Voltage Detector

Rack-A-Tiers 99001 Ultimate AC Sensor, 50-1000V AC Voltage Detector

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Model: 99001

In Stock (leaves warehouse same day if ordered before 3pm ET)

$55.03
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Rack-A-Tiers 99001 Ultimate AC Sensor, 50-1000V AC Voltage Detector

The Rack-A-Tiers 99001 Ultimate AC Sensor is a non-contact voltage detector built for electricians, maintenance technicians, and field service professionals who need a fast, reliable way to confirm the presence of AC voltage before touching a wire, panel, or device. Rated for a sensing range of 50 to 1000-Volt AC, this sensor is designed to catch everything from low-voltage control circuits to standard branch circuits and higher-voltage industrial feeders, giving crews a single tool that covers the vast majority of residential, commercial, and industrial voltage checks encountered on the job. As part of the Rack-A-Tiers lineup of professional-grade electrician tools, the 99001 is built to be carried on a belt, in a pouch, or in a truck toolbox and ready for immediate use whenever a quick safety check is needed.

Key Features

  • Wide Voltage Range: Detects AC voltage from 50 up to 1000-Volt AC, covering low-voltage circuits through higher-voltage industrial applications in a single device.
  • Non-Contact Sensing: Identifies live AC voltage without requiring direct contact with exposed conductors, supporting safer pre-work verification practices.
  • Jobsite-Ready Design: Compact form factor sized for everyday carry in a tool pouch, tool bag, or shirt pocket so it's always within reach when a voltage check is needed.
  • Quick Verification Tool: Provides a fast first-check before more detailed multimeter testing, helping streamline troubleshooting and lockout/tagout verification workflows.
  • Rack-A-Tiers Build Quality: Backed by the Rack-A-Tiers brand, known among electrical contractors for durable, purpose-built tools designed to hold up to daily jobsite use.

Technical Specifications

  • Voltage Detection Range: 50 - 1000-Volt AC

Typical Applications

  • Pre-Work Voltage Verification on Panels and Circuits
  • Residential, Commercial, and Industrial Electrical Troubleshooting
  • Outlet, Switch, and Junction Box Safety Checks
  • Lockout/Tagout Supporting Verification
  • Service and Maintenance Electrical Inspections

Why Rack-A-Tiers?

Rack-A-Tiers designs tools that electrical professionals rely on for everyday reliability, and the 99001 Ultimate AC Sensor continues that focus by giving crews a wide 50 to 1000-Volt AC detection range in a compact, jobsite-ready package. Whether you're running a quick safety check before opening a panel or verifying a circuit during troubleshooting, this sensor is built to deliver dependable, repeatable performance backed by the Rack-A-Tiers name that electricians trust.

Manufacturer Resources

Product Specs

list_batch:
RAC-20260924
Product Type:
Non-Contact Voltage Tester
Voltage Rating:
50-1000V
Department:
Electrical
Product Subgroup:
Voltage Testers
Product Group:
Test & Measurement

Rack-A-Tiers 99001 – Frequently Asked Questions

1) Does the 99001 voltage detector need to touch the conductor to read voltage?
No contact required. The 99001 detects the presence of live AC near a wire, outlet, switch, or panel without touching exposed conductors, which is why electricians use it as the first check before opening anything up.
2) Will the 99001 detect DC voltage, such as on a solar string or battery bank?
No. It is an AC-only sensor, rated 50-1000V AC. PV string DC, battery banks, and DC control circuits will not trip it, so do not use it to prove a DC circuit dead.
3) Can a non-contact sensor like the 99001 replace a multimeter for lockout/tagout verification?
Treat it as the quick first check, not the whole verification. The 99001 tells you whether AC is present in the 50 to 1000 volt range; it does not give you a voltage value. Crews use it to screen a panel or circuit fast, then confirm absence of voltage with a meter capable of reading the actual value on each phase and to ground.
4) Is one 99001 sensor enough to cover residential service calls and industrial plant work?
For AC presence checks, yes. The 50 to 1000 volt AC span covers residential 120/240, commercial 208/277/480, and higher industrial feeders, which is why maintenance and service techs standardize on it instead of carrying separate detectors for each class of work.
5) What is the exact part number to order the Rack-A-Tiers Ultimate AC Sensor?
Order Rack-A-Tiers model 99001. It is a single-configuration tool, so there are no finish, range, or kit options to specify.
6) Is the 99001 small enough to carry in a shirt pocket or pouch every day?
Yes, it is a compact pen-style sensor meant for belt, pouch, tool bag, or shirt pocket carry so it is on hand for a quick check rather than left in the truck.
How fast can I get the Rack-A-Tiers 99001 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Rack-A-Tiers 99001 come with a warranty?
Absolutely. The Rack-A-Tiers 99001 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Rack-A-Tiers 99001?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Rack-A-Tiers 99001 from ZenSupply?
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