1、ABS Material: Ozone detector is made of high strength ABS material, splash proof, dust proof and explosion proof. 2、LCD Indication: LCD indicates the time and status of alarm, fault and low voltage, LCD indicates, sounds and vibrates. 3、Complete Functions: Triple alarm mode (sound, light, vibration) is not easy to ignore, high security, durable standby, responsive. 4、Back Clip and Screen Display: Metal back clip is used, and the buckle is tight to prevent falling off. 7 inch backlight HD LCD screen display. 5、Small and Delicate: Small in size, light in weight, easy to carry, will not increase your burden, can bring you more convenience. 1 x Host 1 x Storage Box 1 x USB Cable 1 x Manual1 x Accessory 1 x Storage Rope  Item Type: Ozone DetectorProduct Material: ABSColor: As Pictures ShownWeight: Approx. 820g / 28.9ozMeasurement Object: OzoneIndication Mode: Sound, Light and VibrationWorking Environment: Temperature -10°C ~ +55°C; Humidity <95% RH (Non Condensing)Accuracy: ≤± 5% F.SCharging Time: 4-6 HoursStandby Time: More Than 8 Hours ContinuousMeasuring Range: 0-20PPMResolution: 0.1PPMAlarm Point: Low 2, High 5 PPMPower Supply: USB 5VProduct Size (Without Back Clip): Approx. 11x6x3cm / 4.3x 2.4x 1.2inBattery (Shipped with Built in Battery): Model 803450, Polymer Battery, 1500mAh