Starting at $877.00
  • Usually ships in 3-4 weeks



  • Ranges from -1 to 1000 bar
  • Dual LCD display
  • ±0.05% FS standard accuracy (Optional .025% and .01%, for ranges ≥20 Bar)
  • 0 to 50°C compensated temperature range
  • RS485 communications
  • G 1/4" pressure connection
  • IP65 protection
  • Intrinsically Safe version available


The Keller LEX1 Digital Pressure Gauge is a highly accurate, microprocessor controlled digital pressure gauge. With an optional accuracy of up to ±0.01% over ranges from -1 to 1000 bar, the LEX1 is suitable for nearly any application. Temperature compensation ensures accuracy in all conditions.

The LEX1 Gauge is easy to set up. Two buttons perform set-up and all functions. A dual LCD display indicates current pressure as well as MIN/MAX value. RS485 communications allow the LEX1 to interface with a computer.

The battery-powered LEX1 is a robust instrument with an IP65 rating and optional Ex II 2 G EEx ia IIC T4 classification making it suitable for a wide range of locations and environments. An intrinsically safe version of the LEX1 incorporates an additional protection switch is available for hazardous locations.