With the Honeywell BW™ Ultra portable five-gas detector, you will be able to increase safety for your workers. Designed specifically for sampling and monitoringconfined spaces, before and after entry, Honeywell BW™ Ultra hasenhanced sensor technology, visibility on gas readings, comfort, and connectivity.This makes it the most reliable and user-friendly way to prevent a safety incident. Base Unit: Base Unit Sensor 1 - Oxygen: None Sensor 2 - Combustible Gases: %LEL (combustibles), unfiltered Sensor 3 - Toxic 1: H2S (hydrogen sulfide) Sensor 4 - Toxic 2: None (dummy sensor) Sensor 5 - Toxic 3: NH₃ (ammonia) Housing: Black housing Region: Europe