Product Name: ADKS-4 Gas Detector<br>Measuring gas: flammable oxygen carbon monoxide hydrogen sulfide<br>Display error: less than equal ±5% FS<br>Response time: TLess than 30s<br>Indication method: LCD displays real-time data and system status<br><br>LED, sound, vibration to indicate alarm, fault and undervoltage<br>working environment:<br>Temperature: 20Celsius~50Celsius;<br>Humidity: Less than 95%RH without condensation<br>Working voltage: DC3.7V (Lithium battery capacity 2000mAh)<br>Charging time: 6h~8h<br>Standby time: more than 8 hours<br>Protection class: IP65<br>Size: 130x65x45mm<br>Weight: about 0.5kg<br>Colour:orange<br>Material: ABS<br><br>Package Contents:<br>1 x Multi Gas Detector<br><br>Only the above package content, other products are not included.<br>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.