Do 135T3 Digital Sauna Temperature Controller, White A compact, wallmounted controller designed for external control of sauna water heaters and steam generators. The Do 135T3 provides reliable temperature and time control for SAB, SAD, HV series 327KW sauna water heaters. Key benefits Precise temperature control: Set and maintain sauna temperature across a wide range from 35 to 110 C for consistent heat management. Programmable runtime: Select operating periods from 1 to 12 hours to match session lengths and schedules. Multifunction control: Operate the sauna water heater on and off, control lighting, and manage other connected functions from a single panel. Spacesaving installation: Compact wallmounted design keeps the control unit accessible while minimizing footprint. Durable construction: ABS housing offers good toughness and wear resistance for long service life. Clear digital display: Separate control box with digital panel lets you view settings and make adjustments easily. Main features Model: Do 135T3 Applicable equipment: External control sauna furnace, wet steam engine, steam generator; compatible with SAB, SAD, HV series 327KW sauna water heaters Material: ABS housing Installation: Wall mount Working time range: 112 hours Temperature control range: 35110 C Weight: Approx. 370403 g (13.114.2 oz) Functions: Heater on/off control, light control, timer settings, digital monitoring Practical use scenarios Hotel or spa sauna rooms: Schedule operating times and temperatures to coordinate guest use and facility routines. Home sauna setup: Integrate with an external sauna furnace to set preferred temperature and session length for consistent home use. Fitness center steam rooms: Control heater cycles and lighting to match class schedules and reduce manual intervention. Packing list 1 x Controller Note Designed for use with compatible sauna water heaters and steam generators. The controller is delivered as a compact, wallmounted unit with a separate digital control box for easy monitoring and adjustment.