Description Smart Sensor AS5750L Refrigerant Gas Leak Detector Specifications: Brand Name: SMART SENSOR Color: Black Material: ABS Detection Gas: All Refrigerant Gas Sensitivity: Less than 0.5oz/yr Alarm Mode: sound alarm and light alarm Response Time: Instantaneous Warm-Up Time: less than 20 Seconds Continuous Operation Time: 9 hours(slightly vary with working condition) Supply: 3 * 1.5V AA Alkaline Batteries(NOT Included) Operating Temperature: 0～50℃ / 32～122℉ Storage Temperature: -10～60℃ / 14～140℉ Item Size: Approx. 15.8 * 6.3 * 3cm / 6.2 * 2.5 * 1.2in Item Weight: Approx. 173g / 6.1oz Package Size: Approx. 245 * 90 * 51.5 mm / 9.64 * 3.54 * 2.03 inch Package Weight: Approx. 310g / 10.93oz Package List: 1 * Halogen Gas Detector Contact Us for more information || Visit our Facebook Page