Brand new and high quality. Temperature range: -9-99 deg Accuracy: 1 deg Control accuracy: 1 deg Setting Range: -9-99 deg Refresh rate: 0.5S. Input Power: DC 9V-15V or DC 16V-30V you choose via drop down menu Output: relay 220V 10A - 12V / 24V 10A. Environmental requirements: -10-60 deg Humidity: 20% -85%. Temperature sensor: NTC(3950-10k 1%) wire length 520mm Size: 7.8cm x 5.1cm x 3cm . Ideal for use as a flow controller on a wetback / radiator system where the hot water valve to your radiators wont come on till cylinder at say 75 deg then stays on until eventually the water temp drops to say 55 thus enabling the cylinder to stay hot enough for domestic use.

Operating Instructions 1, High temperature start. Set the starting temp value> stop temp value. When the detected temp = start temp, the relay is closed, refrigeration equipment work. When the detected temp = stop temp, the relay off, refrigeration equipment stops working. For example: Set the starting temp to 30 , stop temperature is 25 . When the detected temp = 30 , the relay is closed, the start Indicator (red) lights. When the detected temp value = 25 , the relay off, stop Indicator (green) light. 2, cold start: start temp set value. When the detected temp = start temperature relay is closed, the heating device operates. When the detected temp = stop temperature, the relay off, the heating device is stopped. For example: Set the starting temp is 25 , stop temperature is 30 . When the detected temp value = 25 , the relay is closed, the start Indicator (red) lights. When the detected temp = 30 , the relay off, stop Indicator (green) light. 3, Set to start when the temp value = stop temperature value, the relay off.