Four-gas detector combines comprehensive range of features with simple 1-button operation. 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. Fully compatible with MicroDock II automatic test and calibration system. Includes rechargeable battery pack or alkaline pack with (3) AA batteries, charger wall plug (with rechargeable battery option), calibration cap and tubing, reversible screwdriver, manual and technical reference guide. Approved, Class I, Div. 1, Group A, B, C, D.