====== Temperature sensor ====== **External temperature sensor** {{ hiq_hardware:es-iq.png?nolink|}} | Model number: ^ ES-IQ | * ES-IQ external temperature sensor can be connected to HIQ system through supported IEX modules: All thermostats and FC-1-IQ. * Suitable for all temperature measurements in a range from -55°C to 125°C (Like outside temperature, boiler temperature...). * Sensor enable precise temperature measurement.