ELECTRONICS: OMEGA ENGINEERING’s HHP350 series is a high- performance, handheld digital manometer with many features found in more expensive units. The HHP351 has an accuracy of 0.05 percent FS, independent of temperature, while the HHP352 is 0.025 percent. Both models can display 11 different pressure scales, as well as one user-defined scale. MIN/MAX capture, display damping, backlit display, display hold, auto off and leak test functions are all standard features. In addition, a record feature allows manual or automatic storage of up to 240 readings for future recall. Both models include NIST traceable calibration certificates. The HHP351 is ideal for HVAC and automotive industries. Price starts at $775.