Keller LEO2 Digital Pressure Gauge
Starting at $287.00

Some models in stock. View available part numbers.

Need Help? Call a Calibration Engineer 1-800-884-4967

We're open 8:00am to 5:30pm ET


  • 0.2% FS accuracy for Total Error Band (0 to 50°C)
    • 0.1% FS accuracy @ room temp (doesn't include zero stability)
  • Range 1: -1 to 3 bar: 1 mbar resolution, 10 bar overpressure
  • Range 2: -1 to 30 bar: 10 mbar resolution, 60 bar overpressure
  • Range 3: 0 to 300 bar: 100 mbar resolution, 400 bar overpressure
  • Range 4: 0 to 700 bar: 200 mbar resolution, 700 bar overpressure
  • 0 to 50°C compensated temperature range
  • 7/16in to 20 UNF pressure connection
    • Choice of G1/4 or 1/4 NPT adapter
  • IP 65 protection, CEI 529

The Keller LEO2 is a compact, micro-processor controlled, highly accurate and versatile digital pressure indicator. The piezoresistive pressure transducer at the heart of the the Keller LEO2 retains high levels of accuracy and repeatability under a wide range of pressure and temperature situations. The LEO2 calculates the pressure to an accuracy of 0.1% over the temperature range of 0 to 50°C.

The Keller LEO2 measures pressure twice per second. A two line display indicates the current pressure as well as the MAX or MIN pressure since the last reset. All functions of the LEO2 are accessed through two operating keys which allow users to select pressure units and MAX and MIN values.

The LEO2 has 7/16" UNF male thread and is delivered complete with an O-ring seal swivel fitting which allows LEO2 to be rotated through 360°. Only minimal tightness is needed to seal up to 300 bar. The process pressure connection is G 1/4" male.

The LEO2 is also available as a standard or intrinsically safe version, 94/9/CE (ATEX 100a). Classification: EX II G EEx ia IIC T6 or T5. The EEx ia version of LEO2 incorporates an additional protection switch. Functions, ranges and accuracy are identical to the standard version.


Keller Protective Rubber Boot
Keller Protective Rubber Boot for ECO1, LEO2 and LEO Record Pressure Gauges


Keller 309030.0003 Carrying Case
Soft carrying case (fanny pack) for digital pressure gauges
Call for pricing


Please consider these optional accessories.

Keller K-114B USB Converter
Interface converter with binder socket 680 / 5-pin, software CD and USB connection cable
Part Number Price Available
Show Configuration
Base Price
Pressure Range
-1 to 30 bar
Intrinsically Safe Option
Process Connection
$287.00 5
Show Configuration
Base Price
Pressure Range
-1 to 3 bar (+$26.00)
Intrinsically Safe Option
Process Connection
$313.00 4

Interested in Other Part Numbers?

Other part numbers are available to order but are not currently in stock. Current availability for non-stock parts is "Usually ships in 3-5 weeks. Call for expedite options". Click here to select options