Model APS Holiday Detector, by Tinker & Rasor

Voltage settings from 0.8 to 35 kV in one instrument. Designed with safety in mind.


The Tinker & Rasor Model APS High Voltage Holiday Detector supplies 800V to 35 kV in one instrument with two ranges: high range of 3,500V to 35,000V, an low range of 800V to 8,000V. Typical applications are checking coatings on pipelines and other coated structures, tanks, concrete, sewers, and manholes.

The instrument is designed with safety in mind. It will only come on when the safety handle is depressed.

Compatible with AP/S1 and AP/S2 accessories: wand, contact rings, batteries, ground cable.

Easy-to-adjust voltages, which are shown in kilovots (kV) on the LCD voltmeter display.

Rugged, waterproof case.


  • 800V to 35 kV in one instrument
  • Safety switch for instant shutoff
  • Regulated voltage output
  • High setting: 3.5 kV 35 kV
  • Low setting: 0.8 kV to 8 kV
  • Digital display voltage
  • Super bright LED holiday indicator
  • Pushbutton operation
  • Volume control for loud environments
  • Ergonomic handle and grip
  • Rugged design for long life
  • Water & dust resistant carrying case
  • Weather sealed
  • Solid state electronics
  • Low voltage battery indicator



APS Holiday Detector Kit


Kit includes:
  • Model APS instrument.
  • Battery & battery holder box.
  • Ground cable, 20 feet.
  • Wand handle, 18", with full-circle spring electrode connector (Compax connector).
  • 4" rubber inspection paddle.
  • Battery charger, 110 Vac (220 Vac available).
  • Screwdriver.
  • Carrying case
  • Instruction manual
  • Certificate of calibration
  • Your choice of electrode
Choice of Electrodes:
  • Full Circle Spring Electrodes for any one pipe diameter from 2" to 36".
  • Half Circle Spring Electrode for any one pipe diameter from 2" to 8".
  • Silicone-Rubber Brush Electrode with one width between 2" and 8".
  • Other electrode sizes available at pro-rated cost.

The new carrying case (shown above) is included with the Model APS as well as other Tinker & Rasor high voltage holiday detectors, the Tinker & Rasor Model AP and Tinker & Rasor Model AP/W. It is made of lighter resin materials and is weather and dust sealed. Custom foam inserts keeps the instrument and all components safe and secure during shipping and handling. Inline wheels and padded handles make for easy mobility. Streamlined size makes it easy for storage on in a truck or shop. The latches are strong but easy to open, with a push-button lock on each. The case has molded lock catches for your own padlock or other locking mechanism. 



Output type Pulsation DC voltage
Output voltage ranges High range: 3.5 kV to 35 kV
Low range: 800V to 8 kV
Output accuracy ± 5%
Meter resolution 100V
Instrument power 6V battery plus 110V AC charger (220V available)
Environmental -10°C to 50°C (14°F to 122°F)
Dimensions, instrument 2.5" x 21.5" x 2.75"
Dimensions, battery box 5" x 2.5" x 5.5"
Dimensions, carrying case 40.5" x 17" x 7" (103 x 43 x 18 cm)
Shipping weight 40 lbs (18 kg). Weight will vary depending on electrode.