This company has added a compact thermoelectric thermostatting device to its line of accessories for its gas sorption instruments — used to measure pore size and surface area of materials and powders — and gas pycnometers. The device uses Peltier elements to both cool and heat the circulating fluid contained in a closed bath. This leads to very low evaporation rates of the fluid and faster response times compared to traditional refrigerated and heated cooling baths. — Quantachrome Instruments, Boynton Beach, Fla.