The Lovibond MD 100 for chlorine analysis is a rugged, waterproof, hand-held colorimeter that has the ability to test two ranges of free and total chlorine. It has a large backlit display, a real-time clock, automatic data logging and the ability to electronically export data for use in other software applications. It uses DPD Tablets or VARIO Powder Pack reagents and is ideal for laboratory or field use. 800/922-5242; www.lovibond.com.