Description MQ-6 Sensor Detecting Module by Dagu Robot Detects Butane, Propane, LNG, and LPG gas Working voltage: 3.3 V Output type: digital signal, analog signal Interface mode: ph2.0-4p The Dagu Robot MQ-6 Sensor Detecting Module detects Butane, Propane, LNG, and LPG gas. This module features two types of output signals: digital and analog. The interface mode is ph2.0-4p. View more What's Included 1x Dagu Robot MQ-6 Sensor Detecting Module Dimensions Size Module: 34 x 25 mm Specifications Working voltage: 3.3 V Output type: digital signal, analog signal Interface mode: ph2.0-4p Weight: 80 g