Constructed with stainless steel wetted parts and totally portable, the JC and AC Series pressure calibrators can handle many rugged applications and harsh environments. The circuitry is designed to withstand dropping and is immune to electromagnetic interference. The calibrators are fully battery powered (9 V) so they are easily transportable from site to site. This versatile pressure calibrator is available in two accuracies: JC Series with 0.2 % accuracy and AC Series with 0.05 % accuracy. The calibrators have a 4½-digit display for accurate and easy readings. The high/low feature captures and holds both the highest and lowest pressure reading. (Press clear or off to reset). Operating temperatures are from -18 °C to 82 °C [0 °F to 180 °F]. The set includes the digital gauge, carrying case, NIST certificate, and pressure adapter.