The OPL Series is a 4-1/2 inch (114 mm) diameter pressure-indicating gage that combines a precise mechanical readout with adjustable high and low limit switches. These instruments are designed to monitor pressure levels and provide automated control by triggering alarms or equipment shutdowns when thresholds are reached. Housed in a weatherproof die-cast aluminum case, the OPL series features front-accessible limit contacts with a self-cleaning motion, ensuring high electrical continuity and dependable performance in rugged industrial environments.
The SPL Series is a 4.5-inch (114 mm) dial gauge that provides precise mechanical temperature indication alongside integrated high and low limit switches. These adjustable electrical contacts can be used to trigger alarms, stop/start equipment, or initiate safety shutdowns. Built with a rugged die-cast aluminum case and a vapor-actuated diaphragm mechanism, the SPL series is available in SPLC (surface mount) and SPLFC (panel mount) configurations, making it an ideal choice for monitoring engine coolant, gas compressors, and industrial process temperatures.
The 45APE Series is a mechanical pressure gauge that integrates two adjustable SPDT snap-action switches for start/stop control, alarms, or safety shutdowns. Utilizing a robust Bourdon tube and a dual-sector geared movement, it features an indicating pointer for real-time pressure monitoring and a separate internal pointer to trigger the switches. The high and low trip points are independently adjustable via the front lens, supporting ranges from 30 psi up to 5,000 psi. Available in surface (45APE) or panel (45APEF) mount configurations, this series also offers explosion-proof EX models for hazardous environments.
