Oxygen Detector O2 Gas Concentration Leakage Detector Handheld Air Oxygen Content Tester Oxygen Detector Audible And Visual Alarm Wrenches & Pliers durable use life

durable use life

built-in clapboard

High density waterproof

anti - rust and high temperature resistant

the effective transmission rate/reception rate are both improved

Oxygen Detector O2 Gas Concentration Leakage Detector Handheld Air Oxygen Content Tester Oxygen Detector Audible And Visual Alarm Wrenches & Pliers durable use lifeShips FREE Handling Day: 1 3 Days, Arriving Day: 15 35 Days[SHORTDESCRIPTION] Packing List Oxygen detector * 1 Features Soft keys feel comfortableAdopt high quality rubber material, light touch comfortable, easy to operate for a long time, not easy to fall off. Flashing alarm lightRed alarm light, intuitive design, eye catching position.