STANLEY FMHT77407 FatMax Stud Sensor 300 Multi User Manual

1. Introduction

The STANLEY FMHT77407 FatMax Stud Sensor 300 is an advanced tool designed for accurately detecting wood and metal studs, as well as live AC wires hidden behind walls. Its intuitive design and comprehensive features make it an essential device for various home improvement and construction tasks, ensuring safety and precision.

Figure 1: Front view of the Stanley FatMax Stud Sensor 300 Multi.

Key Features:

• Backlit LCD screen for clear readings in various lighting conditions.
• AC detection identifies live wires up to 2 inches deep.
• Wood and metal stud detection through up to 1-1/2 inches deep surface material.
• Deep metal scan senses metal through up to 3 inches of material.
• One Pass center-find technology for precise stud center location.
• Auto-calibration for consistent performance.
• Marking channel with LED for accurate marking of readings.
• Ergonomic design with soft grips for comfortable handling.
• Sequential LEDs and audible beeps to indicate detection.

2. Safety Information

Caution: This product can detect live wires. Always exercise caution when working with electrical components. Dispose of used batteries according to local regulations.

Before using the stud sensor, please read and understand all safety warnings and instructions. Failure to follow these instructions may result in electric shock, fire, and/or serious injury.

• Always assume that live electrical wires are present in the wall.
• Do not rely solely on the stud sensor for determining the presence of live wires. Use appropriate safety measures and verify with other methods if necessary.
• Keep the device dry and clean. Do not expose to moisture or extreme temperatures.
• Do not attempt to modify or repair the device. Refer all servicing to qualified personnel.

3. Setup

3.1 Battery Installation

The STANLEY FMHT77407 requires one (1) 9V battery (not included) for operation.

1. Locate the battery compartment on the back of the unit.
2. Slide the battery cover open.
3. Insert a new 9V battery, ensuring correct polarity (+/-).
4. Close the battery cover securely.

3.2 Initial Calibration

The unit features auto-calibration. To ensure accurate readings, perform the following steps before each use:

1. Place the stud sensor flat against the wall surface where you intend to scan. Ensure there are no known studs, metal, or live wires directly beneath the sensor during calibration.
2. Press and hold the power/scan button. The unit will begin its auto-calibration process.
3. Keep the sensor still against the wall until the calibration is complete (indicated by a specific sound or display change, refer to on-screen prompts).
4. Once calibrated, the unit is ready for scanning.

4. Operating Instructions

The FatMax Stud Sensor 300 offers multiple detection modes for various materials.

Figure 2: Using the Stanley FatMax Stud Sensor 300 Multi to scan a wall.

4.1 Selecting a Mode

Use the 'SEL' button to cycle through the available detection modes:

• Wood/Metal Stud Scan: Detects wood and metal studs up to 1-1/2 inches deep.
• Deep Metal Scan: Senses metal through up to 3 inches of material.
• AC Detection: Identifies live electrical wires up to 2 inches deep.

4.2 Scanning Procedure

1. After calibration, hold the sensor firmly against the wall.
2. Slowly slide the sensor horizontally across the surface.
3. The backlit LCD screen will display readings, and sequential LEDs will illuminate as the sensor approaches a target. Audible beeps will also indicate detection.
4. The One Pass center-find technology will help pinpoint the exact center of a stud.
5. Utilize the marking channel at the top of the device to accurately mark the detected location on the wall.

Figure 3: Ergonomic design of the stud sensor for comfortable use.

5. Maintenance

• Keep the sensor clean by wiping it with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Store the device in a dry, cool place away from direct sunlight and extreme temperatures.
• Remove the battery if the device will not be used for an extended period to prevent battery leakage.
• Regularly check the battery contacts for corrosion and clean if necessary.

6. Troubleshooting

7. Specifications

Figure 4: Product dimensions for the Stanley FatMax Stud Sensor 300 Multi.

8. Warranty and Support

For warranty information and technical support, please refer to the official STANLEY website or contact their customer service. Keep your purchase receipt as proof of purchase.

Official STANLEY Website: www.stanleytools.com