ACE Instruments offers Battery or Mains Operated Direct Mounting Digital Gauges. ACE Instruments offers products for various industrial process control instrumentation like pressure, temperature, relative humidity, etc. The Battery or Mains Operated Direct Mounting Digital Gauges come in 120 x 80 x 55 mm size and with 4 1/2 Digit Large Backlit L.C.D. Dot Matrix Display. It also offers Accuracy: +/ -0.1 Deg. C or +/-0.2 Deg. F, Resolution: 0.1 Deg. C or 0.1 Deg. F and Unit Selection : Deg. C / Deg. F Front key selectable.