• Test results displayed in percent transmittance, absorbance or concentration.          
• Data Storage and Recall for datalogging in the field or laboratory.          
• Operator-selected languages.          
• Full prompting during testing.          
• Error messages for procedural or instrument troubleshooting.          
• A built-in timer to monitor specific reaction times called for in the test procedures. The appropriate time intervals are stored in the program for that test. The timer also can be used manually by the operator independent of the stored programs.          
• RS232 interface capability allows an external printer or computer to interface with the spectrophotometer. This makes software upgrades easy to do with a computer and software disk from Hach.          
• Simplified entry of user-entered programs or new Hach methods.          

The spectrophotometer operates on battery power or ac line power using the battery eliminator/charger unit supplied with the accessories. The battery holder supplied holds six D-size alkaline dry cells (batteries not supplied) that power the instrument for approximately 100 tests. An optional rechargeable lead-acid battery is available, and can be recharged with the battery eliminator/charger supplied with the instrument. The eliminator/charger will not charge rechargeable D-size batteries.