Add a mono HMI with programming to your controller (Zelio requires a modbus serial or ethernet expansion module to).Mono HMI Screen + Programming$1,500.00PricePlease specify any special programming requirements? (optional)0/500Quantity*Add to CartPRODUCT INFOPLC Relay Extension Module includes custom programming. RETURN & REFUND POLICYNon Returnable! SHIPPING INFOPlease email to confirm shipping costs. PRODUCT INFO?All SR3 modules and extension modules sold include the programming of the module as per the customers requirements.