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Photo Control Automatic Light Based Sensor MQ 4 Natural Gas Sensor Module For Methane(CNG) gas Detector Module Use a quality LiPo charger Use a quality LiPo charger rated for 3S batteries Property Value Appearance Clear to slightly amber liquid Viscosity Optimized for spray application Cure Time 24 hours at room temperature Coverage ~50 100 sq ft per 500ml (application dependent) Dielectric Strength High voltage protection Flexibility Excellent prevents cracking Frequently Asked Questions Attractive bulk discounts available on orders of 10+ units What warranty coverage do I get
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