Low-Cost Alternative If several thousand dollars for an IR camera isn't in this year's tool budget, consider an infrared thermometer like the Fluke 566. Its operation is similar to that of an IR camera except it doesn't have a visual display or take pictures. That means that finding missing insulation or other thermal bypasses takes longer — but at $380 you're paying a lot less than you would for a camera. Fluke, 800-443-5853. www.fluke.com

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