Pressure Chart Recorder, 0 to 200 PSI

4" Compact Pressure Recorders Weather-resistant, NEMA 4X-rated enclosure withstands harsh outdoor environments|Compact 4" circular chart records pressure up to 500 psi|Choose from 24-hour or 7-day recording times|Battery operated for easy portability|Place these compact, portable pressure recorders anywhere a written record of pressure is needed. The durable Velox PBT NEMA 4X-rated case protects against corrosion, windblown dust and rain, splashing water, and hose-directed water. Recorders are ideal for investigating and monitoring systems for gas, steam, and water leaks; documenting system pressure at water treatment/ purification facilities; and measuring flow of water wells. Unique door closure ensures weather resistance. Recorder operates for up to one year on a single AA battery. On/off switch provides battery savings. Battery holder is located inside the door for easy battery changes. Note: These pressure recorders are not suitable for monitoring ammonia, acids, or other corrosive substances.