supply of multi gas detector , multi gas detector lel, o2, h2s & co combustible sensor detector (catalytic type) with inbuilt motorized pump, audio a nd visual alarm, 10 feet long sampling hose & probe, inbuilt rechargeable battery 6h-8h with one additional spare battery. working ti me: ≥8h continuously (without alarms)and charger. specifications; accuracy: ≤?5% f.s. response time: ≤30s. lcd displays real-time and system status, alarms: led, audio and vibration alert for gas over or under range. low battery indication. sensor fault indication. explosion-proof grade : exiaiict3. protection grade : ip65. product package includes: hard carry case, gas detector, charger and usb cable, calibration cap, screw for cap, hanging cord. make: metravi, msa safety, honeywell or similar. [ warranty period: 30 months after the date of delivery ] ]