As a veteran-grade differential pressure reset controller

Unlike standard units

protecting internal seals from heat during the brazing process

this part is the standard 3-inch limit for most Day & Night

Designed with a 1/2 inch NPT connection and a 3

Johnson Controls RLD-H10PRO-1 Detector Els PW 29614 As a veteran-grade differential pressureJohnson Controls RLD H10PRO 1 Refrigerant Leak Detector and Charger, 12 Vdc Internal Battery or 100 to 240 Vac Input 18 V Output Wall AdapterApproximately 1 Second Response Time, 2 Minute Warm Up Time, Probe Length Approximately 4 1 2' RLD H10PRO 1 is the direct replacement for RLD H10 607R, RLD H10PM 1 (120V POWER CORD VS BATTERY POWERED)