AJMRTC XH-W1301 LED Digital Thermostat Module, 12V Intelligent Temperature Controller Switch with Waterproof 10K NTC Probe, Heating & Cooling Dual Mode, Hysteresis Adjustable for Incubator, Aquarium

AJMRTC W1301 digital thermostat is a microcomputer temperature control board powered by DC/AC 12V. It reads temperature through the matched waterproof NTC 10K probe and controls the built-in relay to turn loads on or off according to your preset threshold. You can easily switch between heating and cooling modes and set the hysteresis gap to avoid rapid relay cycling caused by tiny temperature fluctuations. The LED screen refreshes data every 0.5 seconds, delivering a measurement accuracy of 0.1°C. It supports temperature calibration, delay startup and buzzer on/off configuration. All parameters are stored automatically when power cuts off, so you do not need to reset manually. The PCB supports panel mounting with reserved fixing holes. It is widely used for egg incubators, aquariums, hydroponic greenhouses, fermentation tanks, refrigeration cabinets and DIY constant temperature systems. Please note the relay maximum load is 10A; use an external contactor for high-power heating or cooling equipment. Follow the wiring diagram strictly to avoid short circuit and electric shock hazards.

Specifications

Brand: AJMRTC

Model: XH-W1301

Working Voltage: DC / AC 12V

Display: 3-Digit Red LED

Sensor: Waterproof NTC 10K Probe

Temperature Range: -50°C ~ 110°C

Resolution: 0.1°C (-9.9~99.9°C), 1°C for other ranges

Relay Rated Current: 10A

Adjustable Hysteresis: 0.5°C ~ 15°C

Function: Heating / Cooling Mode, Power-off Memory, Buzzer Alarm, Temperature Calibration

Refresh Rate: 0.5s

Board Size: 78mm × 51mm

Application: Incubator, Aquarium, Greenhouse, Fermentation, Constant Temperature DIY