WT8812 4-In-1 Compound Gas Measurement Monitor LEL/O2/H2S/CO Gas Monitor LCD Display Sound Light Vibration Alarm Data Record With 4 Forms Alarm

OverviewSpecifications: Model: WT8812 Range: Combustible gas LEL: 0~100%LEL Oxygen O2: 0~30%VOL Hydrogen sulfide H2s: 0~100PPM Carbon monoxide CO: 0~1000PPM Resolution:  Combustible gas LEL: 0.1%LEL Oxygen O2: 0.1%VOL Hydrogen sulfide H2s: 0.1PPM Carbon monoxide CO: 1PPM Accuracy: ≤±5%FS Response Time (90%): Less than 30 seconds Indication Mode: LCD displays real-time data and system state, LED, sound, vibration indication alarm Storage Conditions: Temperature: -10~55℃; Humidity: ＜85%RH Operation Conditions: Temperature : -20~50℃; Humidity: ＜95%RH non-condensing Working Voltage: DC3.7V (Lithium battery capacity 1800mAh) Charging Time: 4h Standby Time: More than 8h on end (slightly change with working state) Material: ABS Item Size: 153 * 71 * 49 mm / 6.02 * 2.79 * 1.93 inch Item Weight: 219g / 7.72oz Package Size: 27.5 * 20 * 6.5 cm / 10.83 * 7.87 * 2.56inch Package Weight: 825g / 29.1oz