PC Doodle Ruler Specifications:

• Electrical Field Meter
• Magnet Locator
• High Accuracy Temperature (-10 °F - 140°F)
• High Accuracy Humidity (0-100% RH)
• Volty™ : 0-28V DC Battery Meter (0.1V Resolution)
• Continuity Beeper for Fuses / Resistors
• Emergency Flashlight (Up to 24 Hours)
• Replaceable Battery (CR2032) Included.
• Backup Battery Included (10 Year Shelf Life).
• Battery Test Leads Included.
• Light Weight: 1oz Including Battery.
• Leather Carry Case Included.
• Designed to last a long time (Buy it for life).

EMF Meter:

The 4 LED scale on the meter is based upon Voltage Peaks over time. The Meter is directional: you can point the PC Doodle Ruler on axis to locate the source.

• Detects most unshielded electronics plugged into the grid.
• Detects most battery powered wifi / cellular transmissions at close distance to the antenna.
• Privacy: Check if electronics are still emitting when “Off”, Airplane Mode or unplugged.
• 4 Sensitivity Levels.

Do not use the EMF Toner to confirm the presence or absence of HIGH VOLTAGE WIRES!

Magnet Locator:

• Quickly Locate Magnets through Stucco, Concrete, Brick, Steel and Wood Surfaces.
• Assists Drilling Positions using a strong neodymium magnet as a location “beacon”
• Magnetic Polarity Detection (North or South).
• Paranormal Research Applications ;)
• Bury Treasure and find it again!
• 4 Sensitivity Levels.

Emergency Flashlight (3000K Warm White):

• Use the meter LEDs as a flashlight.
• Warm White 3000k.
• 4 Brightness Modes.

Temperature Sensor:

• -10 °F to 140 °F.
• Long Sensor Lifetime.
  
• Can be switched between °C and °F (Default is  °C).
• Temperature Hold mode for placing directly in HVAC Vent/refrigerator/freezer.

Do not use the ruler in environments above 140°F / 60°C.

Humidity Sensor:

• Detection Range: 0 - 100% RH
• Real Time and High/Low Hold.
• Long sensor lifetime.

DC Volt Meter:

• Test batteries up to 28V DC
• 0.1V Resolution
• Beep On Change for finding parasitic power draw in Cars/Trucks/Boats.
• Reverse Polarity Protection
• Gold Plated Test terminals.
• LOW/HIGH hold mode for battery under load diagnostics.

Continuity Beeper:

• Test Fuses and Resistors Out Of Circuit.
• Beeper threshold can be set to 100, 1K or 10K Ohms