Three new low-cost PhoCheck+ PIDs from Ion Science are ideal for detecting volatile organic compounds and other toxic gases in the field. Along with the PhoCheck 1000 and PhoCheck 1000EX, the PhoCheck+ 2000EX is fully upgradeable with features such as datalogging with time/date stamp for up to 137,000 points, and IRDA communication/software.ION Science (Americas), Waterbury, VT.