EST-100 Smart Thermostat for Electric Storage Water Heaters

EST-100 Smart Thermostat for Electric Storage Water Heaters

  • Reliable mechanical bipolar safety cut-out
  • Anti-Legionella function
  • Freeze protection function
  • Increased accuracy due to electronic temperature measurement
  • Smart function: advanced software for heating optimization, reduces energy consumption up to 15%
  • Functional temperature controlled by software
  • ErP and Ecodesign compliant solution
  • Remote control via Android and iOS mobile apps
  • LCD display and digital control with user-friendly interface
  • 5 water heater operating modes: Manual, Eco, Smart, Timer, Travel


EST-100 smart thermostat solution consists of 2 elements, connected by a quick faston connection cable.
The first element is the electromechanical thermostat, which controls the heater and collects data about water temperature.
The second element is electronics with LCD TFT display 1.44'', 4 buttons, user interface, and Wi-Fi module. Collected data from the first element is being processed in the second one.
Mobile applications, as part of EST-100 solution, provide complete product functionality.

Additional information



Thermostat type

Single-phase stem / rod electronic thermostat

Rated Current / Voltage

16A / 230V ~

Safety cut-out

Bipolar with bimetallic disc

Functional cut-off


Safety reset


Max functional temperature / Accuracy

75°C / ± 2°C

Bimetallic disc reaction temperature

65 ± 3°C, 70 ± 3°C

Temperature selection range

From 15°C to Max

Thermal hysteresis


Standard stem length


Electrical connection

Quick faston connection 6.3×1.0 mm


TFT LCD 1.44”

Display panel IP Class


Operation Settings

With HMI and mobile APP

Wi-Fi protocol

IEEE 802.11 b/g/n


Conformity CE
IEC 60730-2-9 2015 + A1:2018
IEC 60730-1:2013 + A1:2015



Technical Data Sheet for EST-100 Smart Thermostat for Electric Storage Water Heaters

EST-100 Smart Thermostat / 65

EST-100 Smart Thermostat / 70

EST Product Family