Rugged and reliable, the BW Technologies GasAlert Quattro four-gas detector combines a comprehensive range of features with simple one-button operation. With flexible power options, the GasAlert Quattro is always ready. The graphic LCD displays easy to identify icons that indicate operational information, such as bump test and calibration status for simplified onsite auditing. IntelliFlash provides continuous visual confirmation of detector operation and compliance. Suited to a wide range of industrial applications including confined space entry, the GasAlertQuattro is fully compatible with BW's MicroDock II automatic test and calibration system. The GasAlertQuattro was designed with an emphasis on simplicity, durability and reliability using proven Honeywell processes and engineering. With the GasAlertQuattro, seeing is believing. Perfect for rugged environments, the GasAlertQuattro features a durable exterior with reinforced bumpers and integral concussion proof boot to protect the detector. This rugged design keeps the GasAlertQuattro working in the most extreme weather, environments and work conditions. Relying on the GasAlertQuattro prevents costly downtime. Rigorously developed over two years with proven Honeywell engineering processes, the GasAlertQuattro is built to deliver a superior performance. All sensors on the open market were thoroughly evaluated. Alphasense and Surecell™ sensors were selected because they provide the best overall operation and reliability. Surecell sensors boast over 10 billion hours of field use and abuse. The GasAlertQuattro's field-proven sensors offer enhanced resistance to common industrial cross sensitive gases such as methanol and ethanol (CO and H2S sensors) which means more reliable sensor responses. What's Included: Calibration cap and tubing rechargeable Li battery pack or three AA alkaline batteries depending on model Models with rechargeable battery pack also include a battery charger.