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TPI 725 Pen Style Pocket Combustible Gas Leak Detector, LED Display, 1000 ppm Sensitivity, 2 x AAA Batteries, 32 to 104 Degree F: Leak Detection Tools: Amazon.com: Tools & Home Improvement
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TPI 719 Combustible Gas Detector - Indicator: Visual, Minimum Sensitivity: 30, Self-Calibrated: Yes | TEquipment
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