The PRESTO® W91 Highly Dynamic Temperature Control Systems are amongst the most powerful units available. Their impressive power is harnessed by cutting-edge control technology. The W91 provides extraordinary heating, cooling, and pumping performance. But it also comes with the functions and features that make the new generation of PRESTO® so unique. Your advantages Extremely fast cool-down and heat-up times Wide working temperature range without changing the bath fluid Very fast compensation of exothermic and endothermic reactions Unsurpassed power and efficiency Heating capacity up to 36 kW Ambient temperature range +5 °C to +40 °C Space optimized design creates more room directly next to the units Integrated 5.7” industrial color touchscreen displays all essential information and enables simple fingertip control Extensive warning, protection, and monitoring functions with detailed self-explanatory messages ICC cascade control for extraordinary precision, temperature stability ±0.05 °C … ±0.2 °C Integrated programmer with real-time clock Filling level indicator and pump capacity displayed electronically Powerfol circulating pumps, electronically adjustable in stages or by setting the pressure value Interface for SD memory card Connections for USB, Ethernet, RS232, and Alarm output Optional analog connections, RS485, Profibus DP, Modbus