Engineered to benefit both the consumer and the heat network operator, Liberty Connect provides usage information for community heating, and payment options for any size of district or community scheme.

Liberty Connect 100 acts as a hub within the home, providing two-way communications with the heat service provider, including tamper detection.

Consumers benefit from a portable multi-function in-home display, Pipit 500, allowing them to monitor and control their energy consumption and costs.



  • Saving Money

    Pipit’s touchscreen display allows tenants to view their energy usage in real-time, and their consumption history for the previous twelve months.

    Budgeting becomes easier when tenants can see what they are spending. Our smart metering technology puts control and visibility in their hands, so they only pay for what they’ve used. No more estimated readings. No more unexpected bills.

    Saving energy

    Visibility of energy consumption means that tenants can make informed choices about their energy use. Reducing energy consumption in order to save money naturally has a positive effect on long-term energy waste. It’s an eco-step in the right direction.

    Saving Time

    We like to keep things simple, and our smart pre-payment energy solution combines simplicity with effectiveness. Topping up couldn’t be easier for tenants, with our range of pay-as-you-go offerings. They can top-up at a retail outlet, or from the comfort of their own home online, via text or over the phone. 

  • Key Feature

    • Suited for new-build or retrofit installation projects
    • Quick and easy to install and commission
    • Provides usage data and alerts
    • Puts tenants in control
    • Multiple ways to top up
    • In-house or outsourced operation
    • Configurable for prepayment or credit mode
    • Supports M-Bus and pulse output heat meters
    • No maintenance required
    • Certified security
    • Specification
    • Liberty Connect


      Dimensions  W x H x D

      155 mm x 145 mm x 46 mm


      0.55 kg (approx.)

      Sealing provision

      2 seals on the rear and 1 seal on the terminal block cover


      • 150-segment transflective (STN) LCD with backlight
      • 10 alphanumeric characters (9 mm high x 2.4 mm wide), with icons
      • Display visibility: 15° from all sides
      • Operating temperature: -25°C to +55 °C


      12 keys, silicone rubber


      Rated voltage

      230 V AC, + 30%, - 20%


      50 Hz ± 5%

      Relay input voltage

      12 V to 24V DC, 110 V to 230 V AC

      Maximum: 26 V DC/250 V AC

      Relay input/output current rating

      2 A maximum


      Wired M-Bus

      EN 13757-2 : Physical and link layer (Master)

      EN 13757-3: Application layer (Master)


      2002/95/EC Restriction of the use of hazardous substances


      2012/19/EU Waste Electrical and Electronic Equipment Directive

      Battery Directive

      2006/66/EC Regulates the manufacture and disposal of batteries in the European Union

      Pulse input


      4.5 V DC maximum


      Potential-free contact (open collector) – OB type

      Pulse width

      20 ms to 800 ms

      Electrical isolation

      3 kV

      Wired M-Bus (supports single slave)


      36 V DC


      20 mA

      Electrical Isolation

      3 kV


      Power source

      Mains supply

      Life expectancy

      10 years


      Operating temperature


      -25 °C to +55 °C


      Storage temperature


      -25°C to +70 °C


      Operating humidity

      Up to 95%, non-condensing

      Pipit in-home display

      Dimensions W x H x D

      115 mm x 80 mm x 40 mm


      0.2 kg (approx.)

      Power consumption

      < 0.6 W

      Display area

      76 mm x 40 mm

      Display resolution

      240 x 128 pixels


      Resistive type


      Acrylonitrile Butadiene Styrene (ABS)/Polycarbonate Flame Retardant (PCFR)



      Replaceable battery

      2 x AAA alkaline non-rechargeable batteries

      Memory size

      2 MB

      Operating temperature

      0 °C to +50°C

      Storage temperature

      -20 °C to +70 °C

      Relative humidity

      0 to 95% (non-condensing)

      Ingress protection


      Operating life

      Greater than 5 years