Pond Heating >> Digital Controllers

A very Popular Model is the Carel Digi-Stat , you will need to order the probe as well, this unit has a Digital Readout which is very Accurate.
The Carel TW thermostat simultaneously displays set point, differential and temperature on its backlit Liquid Crystal Display.

The Carel Digi-Stat allows you to select the set-point range within a minimum and a maximum value, the status of the output relay (ON/OFF) in the event of probe failure, the heating/cooling mode and the position of the differential as PRE or POST of the set point.

•  S90 TW: Electronic Thermostats for Wall Mounting.
• OPERATING RANGE - 40°C to 90ºC ( 40°F to 194ºF)
• DISPLAY - 3 digits with decimal point plus sign.
• ACCURACY - Better than 1ºC (2ºF)
• INPUT - Carel NTC probe.
• OUTPUT - SPDT relay 240Vac/5A, 24Vac/10A rse. Output for alarm signal.
• CONNECTIONS - Screw terminal block for cables up to 2,5mm
• MOUNTING - Wall-mounted.
• DIMENSIONS - Front panel 85mm x 87mm, depth 48mm (3.3" x 3.4" x 1.92").
• POWER SUPPLY - 220/240Vac, +10%, 50/60Hz power consumption: 3VA.
• OPERATING CONDITIONS - Operating temperature: 0 - 50ºC humidity: lower than 90%rH, non-condensing.
• STORAGE CONDITIONS - Temperature: - 10 - 70ºC humidity: lower than 90%rH, non-condensing.
• INDEX OF PROTECTION - IP20.

This unit over the years has proved that for boiler and pond heating control, there is no other thermostat device more reliable. Accuracy +-1°C. Digital readout. Can display in °F or °C.

Designed to give automatic temperature control for Koi ponds. Operating in the range of 5° to 30°C this highly accurate stat will hold the water temperature within ± 0.1°C. The unit is programmed with an automatic temperature gradient control which eliminates temperature shock for the fish when changing settings.

The unit can operate most boilers, motorized valves and electric heaters up to 3kw. A large clear display and single button setting make this a very user friendly thermostat. The unit also features a water level sensor option which cuts off the heat source at low water level and a remote alarm option to give warning of any faults.