Designed, manufactured and supplied for the professional business market only, the Procell range of batteries is a re-brand and update of Industrial by Duracell. This multiple pack contains ten new 9.0 Volt PP3 (6LR61 size) cells, economically packaged and ready to open and use. Compact 9V Procell 6LR61 or PP3 batteries feature alkaline chemistry for dependable output. Frequent applications include medical equipment, smoke alarms, carbon monoxide sensors, presence detectors, walkie-talkies and small radios. Similarly, some other popular uses are in portable computer accessories and security devices. According to manufacturer information, the recommended operating temperatures are between a minimum of minus 20 degrees celsius and a maximum of 54 degrees Celsius. Each cell measures approximately 48 x 17 x 26 millimetres and is a direct replacement for E-block and ID1604 size codes. Procell operates a quality warranty that includes stringent controls and complies with the EU Battery Directive, ISO 14001/9001 and the Duracell continuous improvement programme.