Keller LEO5 Digital Manometer (4bar)

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  • Measures pressure from 0 to 4bar and temperature from 0˚C to 50˚C
  • Large internal memory for 56,000 readings with timestamp and temperature
  • Stainless steel, IP66-rated enclosure with sealed glass front
(Ex. VAT) £655.00 (Inc. VAT) £786.00

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  • Description

    Keller LEO5 Digital Manometer (4bar)

    The Keller LEO5 Digital Manometer is a feature-rich, high precision industrial pressure gauge capable of measuring absolute pressure from 0 to 4bar and relative pressure from -1bar to 3bar via its G1/4” male pressure connection. Pressure readings are accurate to ±0.05% FS and precise to 1mbar. The manometer also has temperature measurement from 0˚C to 50˚C with ±1˚C accuracy.

    Temperature and pressure readings are displayed simultaneously on the Keller LEO5’s digital display, whilst an analogue output with a 4…20mA or 0…10V signal. Peak reading capture record the highest and lowest readings with a measurement frequency of 5kHz whilst standard mode has a 2Hz sampling rate. Min/max recording and a zero function are both available.

    The Keller LEO5 has a large internal memory with enough space for 56,000 readings with pressure, peak pressure, temperature and a timestamp. Data from the memory can be downloaded via the USB port and this also allows the user to recharge and configure the manometer from a PC.

    A stainless steel enclosure and environmentally sealed safety glass front panel make the Keller LEO5 suitable for use in difficult conditions. It has an IP66 waterproof rating. The accumulator rechargeable battery can operate for up to 1600 hours when fully charged.

    Keller part number: 303040.xxxx

    Key Features

    • Absolute pressure range: 0 to 4bar
    • Relative pressure range: -1 to 3bar
    • Pressure accuracy: ±0.05% FS
    • Pressure resolution: 1mbar
    • Temperature range: 0 to 50˚C
    • Temperature accuracy: ±1˚C
    • Analogue and digital outputs
    • Peak capture mode with 5kHz sampling rate
    • Memory for 56,000 readings
    • USB interface for download and configuration
    • Stainless steel, IP66-rated enclosure
      ECO2 LEO1 LEO2 LEO3 LEO5 LEO Record LEX1
    -1 to 3bar
    -1 to 30bar
    0 to 100bar
    0 to 300bar
    0 to 400bar
    0 to 700bar
    0 to 1000bar
    Accuracy ±0.5% FS ±0.1% FS ±0.1% FS ±0.1% FS ±0.05% FS ±0.1% ±0.05% FS
    (at smallest range)
    10mbar 1mbar 1mbar 1mbar 1mbar 1mbar 0.1mbar
    Temperature range 0˚C to 50˚C
    Temperature accuracy ±1˚C
    Intrinsically safe
    Peak mode
    Pressure connector 7/16" UNF G 1/4" 7/16" UNF G 1/4" G 1/4" G 1/4" G 1/4"
    Analogue output
    Internal memory
    Data port RS485 Binder USB RS485 Fischer RS485 Fischer
    Compatible with
    Keller-Bus protocol
  • Specification

    • Relative pressure range: -1 to 3bar
    • Absolute pressure range: 0 to 4bar
    • Pressure resolution: 1mbar
    • Overpressure: 8bar
    • LCD number of digits upper/lower: 5 (7 segments) / 5 (14 segments)
    • Accuracy: 0.05% FS (incl. linearity, repeatability, and hysteresis)
    • Total error band (0…50˚C): 0.1% FS (accuracy incl. temperature error)
    • Precision: Optional for ≥20bar: 0.025% FS or 0.01% FS
    • Storage temperature: -10˚C to 60˚C
    • Operating temperature: 0˚C to 50˚C
    • Data storage: >56,000 readings with timestamp
    • Long term stability: 1mbar or 0.05% FS for reference; 0.5mbar or 0.025% FS for absolute
    • Compensated temperature range: 0˚C to 50˚C
    • Temperature measurement accuracy: ±1˚C
    • Accumulator: Lithium-Ion 4.2V / 1.6 Ah
    • Accumulator run time: Standard mode, 1600 hours; peak mode, 160 hours
    • Accumulator charge cycles: >300 hours
    • Pressure connection: G ¼”
    • Interface / plug type: USB / mini USB
    • Dimensions: 76mm x 118mm x 42mm
    • Weight: 340g approx.
    • Protection: IP66 
  • Product Documents

    Product Attachments

    View FileKeller LEO5 Datasheet    Size: (549.6 KB)
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  • Delivery Information

    At we understand the importance of a reliable delivery service when shopping online. Especially when the goods are often essential to your working day. If your goods are required by a certain date please feel free to contact us for an honest and realistic indication whether this can be met. We aim to process all orders we receive within 1 to 3 working days, however from time to time we do have an increased demand for certain products or there might be delays from the manufacturer. In such cases delivery of your equipment may be subject to a minor delay.

    We use DPD/Interlink for all larger items and Royal Mail for smaller items and accessories. With DPD/Interlink you will receive a 1 hour delivery window on the day of delivery via e-mail/text and a notification 15 minutes before arrival so you will not have to wait around all day. You can even manage your booking online and re-arrange delivery for another date or arrange the goods to be left with a neighbour of your choice.

    We also offer delivery options for goods required urgently on certain products, all which are sent by DPD/Interlink.

    Our charges for UK deliveries:

    • FREE Delivery (on select products only): typically 3-5 working days*
    • Standard Delivery at £4.95: 2-3 working days
    • Next Working Day Delivery (on select products only) at £7.50
    • Pre-Noon Next Working Day Delivery (on select products only) at £9.50*
    • Pre-10.30am Next Working Day Delivery (on select products only) at £18.50*
    • Saturday Pre-Noon Delivery (on select products only) at £14.50*
    • Sunday Pre-Noon Delivery (on select products only) at £14.50*

    *UK mainland only

    NOTE! For next working day or Saturday/Sunday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only (this might exclude certain areas in the north of Scotland).

    Customers outside the UK: exports to many countries all over the world. Prices for shipping vary on location and weight/dimensions. Costs are calculated for certain countries at the checkout. If your country is not included in this list please e-mail with your name, address and the items you would like to order for an accurate shipping quote or go to for more information.

    For more information on delivery, please see our terms and conditions.