The 52245 compact digital pressure-temperature chart is a pocket-sized device. It offers fast and accurate pressure-temperature references on a large, easy-to-read LCD, the company says. The automatic power-down feature shuts off the unit five minutes after the last command to ensure extended battery life. Pressure readings are available in psi, bar, and MPa. Temperature readings are available in Fahrenheit or Celsius. Device works with R-12, R-22, R-134a, R-401A, R-402B, R-404A, R-410A, R-500, R-502, and R-507. The device comes with a battery.

Mastercool, One Aspen Dr., Randolph, NJ 07869; 973-252-9119; 973-252-2455;

eProduct #188