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REED R3100 Digital Differential Pressure Manometer (100psi)

Measuring Ranges 100.0 psi
2768 inH2O
6895 mbar
203.6 inHg
5171 mmHg
1600 ozin²
230.7 ftH2O
7004 cmH2O
7.031 kgcm²
6.895 bar
Accuracy ±0.3% FS
Resolution 0.1 psi
2 inH2O
4 mbar / cmH2O
0.4 kPa
0.2 inHg
3 mmHg
1 ozin²
0.2 ftH20
0.004 kg/cm² / bar
Repeatability ±0.2% FS
Linearity/Hysteresis ±0.29% FS
Max Pressure 150 psi
General Specifications
Display 4-digit, Dual LCD Display
Backlit Display Yes
Data Hold Yes
Min Yes
Max Yes
Differential Pressure Yes
Response Time 2 times/sec.
Internal Memory Yes
Auto Shut-off Yes (after 20 mins/off)
Low Battery Indicator Yes
Power Supply 9V battery
Product Certifications CE
Operating Temperature 32 to 122°F (0 to 50°C)
Storage Temperature 14 to 140°F (-10 to 60°C)
Operating Humidity 10-80%
Dimensions 7.2 x 2.8 x 1.2″ (182 x 72 x 30mm)
Weight 7.8 oz (220g)


REED R3100 Offers

This digital manometer provides accurate measurements in 11 different units of measure and is capable of taking gauge and differential pressure. The R3100 features a backlit LCD display and internal memory to capture maximum and minimum measurements.


  • Measures gauge and differential pressure up to 100psi
  • 11 selectable units of measure: psi, inH2O, bar, mbar, kPa, inHg, mmHg, ozin², ftH2O, cmH2O, kgcm²
  • Displays pressure and real-time clock simultaneously
  • Easy-to-read backlit LCD display
  • Internal memory saves Max and Min measurements
  • Data hold function
  • Low battery indicator and auto shut off
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