Display: 31/2 digit liquid crystal display (LCD) with a maximum reading of 1999
Low Battery Indication: displays when battery is below operating level
Storage Temperature: -20 to 60 °C (-4 to 140 °F), 0 to 80% R.H. with battery removed from meter
Accuracy: ±2% at 23 °C (75 °F) ± 5 °C, <75% relative humidity
Dimensions: 190 H x 44 W x 40 mm D (7.5 x 1.7 x 1.6")
Weight: approx. 150 g (5.3 oz) including battery
Battery: 1.5 V x 4 pcs, AAA size)
Sensor: Solid state
Range: 0 to 508 mm (0 to 20") water column
Resolution: 0.01/0.1 in WC Operating
Temperature: 0 to 40 °C (32 to 105 °F)
Operating Relative Humidity: 15 to 90% R.H>, non-condensing
Battery Life: 150 hours typical. No measurable current when in † œoff†  position. Batteries included.
Compatible Media: Clean, dry non-corrosive gases