MKS Instruments Inc.-HPSR Products, Boulder, Co., published a brochure on the HPSR Series 959 hot cathode combination gauge controller and HPSR mini ion gauge (MIG) hot cathode sensor. Series 959 operates a hot cathode and Pirani-style sensor to measure pressure from over atmosphere to ultrahigh vacuum. The 6-p brochure includes a comprehensive description of each unit, specifications, applications, dimensions and prices.