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Red handheld UVC meter with backlit LCD display

Sentry

Sentry ST512 UVC Meter electrician tool

SKU CH-RVDD-2HS2N MPN ST512

Measures UVA and UVC intensity up to 40 mW/cm² with dual-display backlit LCD, 20-point memory, magnetic mount and tripod socket

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Measures UVA, UVC and UVAB intensity up to 40 mW/cm²
  • Dual 4-digit backlit LCD shows high and low ranges in mW/cm² or µW/cm²
  • Stores 20 readings in memory for later review
  • Magnetic back mount and tripod socket allow hands-free positioning
  • Automatic measuring function starts readings without manual trigger

UVC meter for electricians

The Sentry ST512 measures ultraviolet radiation intensity in the UVC spectrum for professional electrical and maintenance work. It provides automatic measuring with a dual-display backlit LCD showing values in mW/cm2 or µW/cm2. The meter includes a magnetic mount and a tripod socket for secure positioning during inspections. This tool is built for technicians who need to verify UV output on-site.

Measures up to 40 mW/cm2 with 20-point memory

The instrument covers a wide intensity range up to 40 mW/cm2, switching between high and low ranges automatically. It stores up to 20 readings in its internal memory for later review. The 4-digit dual display presents simultaneous values for immediate analysis. Beyond the stated maximum, the meter cannot record higher intensities.

Magnetic mount and tripod socket for fixed

A back magnetic mount lets the meter attach to ferrous surfaces without extra hardware. The integrated tripod socket supports stationary monitoring over time. The unit ships as a single piece in a box with a three-year parts and one-year labor guarantee. It requires no external power module beyond its internal supply.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $341.99
Pricier than about 90% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSentry
Model nameST512
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

Will the Sentry ST512 UVC Meter interfere with older test equipment I keep on the same bench?

The meter measures UVA, UVC or UVAB intensity up to 40 mW/cm² with high and low ranges in mW/cm² or µW/cm² and uses a back magnetic mount, so it sits independently and does not couple electrically with other instruments.

How can I verify the ST512 is reading correctly after I turn it on?

The backlit LCD shows a 4-digit dual display and automatic measuring starts immediately; compare the live reading against a known UV source and use the 20-point memory to log successive values for consistency.

What comes in the box with the ST512 and what must I buy separately?

The unit includes the meter with magnetic mount and a tripod mounting socket; no probes, batteries or calibration standards are listed, so plan to source those separately.

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