Wireless 2.4GHz Weekly Digital Programmable Thermostat Model MK-725

The MK-725 is a simple-to-use, highly versatile wireless digital weekly chronothermostat. Suitable for temperature control of devices with a two-wire activation contact (wall-mounted boilers, diesel burners, etc.), it consists of a remote control unit powered by batteries, which can be placed anywhere inside the home, and a power unit to be connected to the boiler. The wireless connectivity at 4.33 MHz between the control unit and the power unit ensures highly stable command transmission. The MK-725 combines practical functionality with an elegant square-shaped design, in white with smooth-touch surfaces. It features a large display at the top with blue backlighting and a rotary selector for programming located at the lower front. It is also equipped with a thermal sensor in the centre of the bottom edge and a rear mounting bracket with comb contacts, installable with cables in surface or flush-mounted trunking, screw terminals, and a double fixing hole for wall plugs with XY adjustment, applicable for both the control unit and the power unit.

Specifications and functions:

• Daily and weekly programming with automatic operation according to the schedule

• Daily division into 6 time slots

• Hourly programming selection in 15-minute increments

• Two additional fixed preset programmes (day and night, and working week and weekend)

• Manual operation

• Settable temperatures in 0.5-degree increments for each time slot

• Wireless communication at 4.33 MHz

• Wireless connection loss indication via reverse feedback

• Off mode

• Holiday function

• Comfort and energy-saving functions

• Frost/over-temperature protection

• Temperature calibration

• Start hysteresis adjustment

• Command lock

• Programming deactivation

• Adjustment of frost/excess temperature levels

• Adjustment of min/max programmable temperature levels

• Descaling function to prevent limescale formation in pipes

• Factory programme reset

• Wireless coverage effective up to approximately 15 metres in the presence of ceilings/floors and partition walls

Technical Data:

• Operating temperature: 1° C ~ 70° C

• Display accuracy: ± 0.5° C

• Temperature sensor: NTC probe (10k) 1%

• Power supply: 2 x 1.5 V AA batteries (not included)

• Output: clean contact relay

• Contact capacity: 10 A/220 V (RF electric heating)

• Temperature setting range: 5° C ~ 35° C (default setting)

• Temperature selection range: 1° C ~ 70° C

• Installation: wall-mounted control unit

• Control module:

- Dimensions (WxHxD): 130.02 x 90.11 x 27.40 mm

- Weight: 188 g

- Power supply: 2 x 1.5 V AA batteries (not included)

Power unit

• Receiver:

- Dimensions (WxHxD): 85.96 x 28.84 x 85.81 mm

- Weight: 112 g

- Power supply: 220V AC single-phase 50 Hz