Model PD661 LOOP -Powered Indicator

4-20 mA Input, 1.5 V Drop,3½ Digit LCD ½" (12.7 mm) High, Operating Temperature Range: -40 to 80C,The PD661 3½ digit loop-powered meter is perfect for applications where a simple inexpensive display is required and no AC power is available. And even if the lighting is poor, the loop-powered backlighting option lets you see the display under any lighting condition. This option gets its power from the 4-20 mA input loop so there is no need for additional wiring and no batteries to ever change. The PD661 is housed in rugged NEMA 4X and Explosion-proof enclosures so it can be mounted virtually anywhere. The PD661-N-EX and PD661-B-EX have been FM Approved and CSA Certified as explosion-proof as complete products - not just the enclosures.