Alarm function - display flashes if temperature exceeds temperature limit or sensor error (no noise). It contains two independent output relays that can be turned ON or OFF as temperature rises or lowers past a thermal threshold that you set.
eBay
DC 12V DC 24V AC 110V AC 220V Digital Temperature Controller ETC-974 Thermometer Refrigerator
Aliexpress UK
Output range: 10A relay. Refresh rate: 0.5s. Board size: 48 40mm. 1,The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
EMC2101 I2C PC fan controller temperature sensor temperature monitoring PC fan controller
Aliexpress UK
Relative Humidity: 20%~85% (No Condensate). Support alarm function when temperature exceeds temperature limit or when sensor error, ensuring safety. Support switch modes between cooling mode and heating mode.
eBay
5760W 60A 50A 40A 80A Built-In WIFI MPPT Solar Charge Controller Max 230VDC For 12V 24V 48V 60V 72V
Aliexpress UK
1PC Temperature Sensor. Temperature 0.1℃,other paragraph 1℃. High temperature protection:0-110℃. Size:48mm(length) x 29mm(width) x 32mm. Sound & Vision. Hole size:46 x 26.5mm.
eBay
EPever MPPT 50A 60A 80A 100A Solar Charge Controller 12V 24V 36V 48V for Max 200V PV 5415AN 6415AN
Aliexpress UK
Mode:DC 24V/DC 12V. Load Power: 120W (12V). LED display shows the results clearly. Accurate Temperature. Clear Data. Housing Color: White. Item Weight: 50g. This can be for any of the following reasons -.
eBay
SRNE BT-1 Bluetooth-Compatible Module 5V-12V for MPPT Controller ML Series Controllers IP67 Wireless
Aliexpress UK
Probe used stainless steel material, waterproof and does not rust easily. Output: 10A (Max). Mode:DC 24V/DC 12V. Load Power: 120W (12V). LED display shows the results clearly. Accurate Temperature. Clear Data.
eBay
12V LED Strip Controller Mini Dimmer RF Wireless Remote 11key DC 5V 12V 24V Controller for LED Strip
Aliexpress UK
Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Relay: 20A. Can select cooling or heating working mode.
eBay
12V 24V 48V Brushless underwater thruster + controller Thruster underwater thruster One set of
Aliexpress UK
2 mode:Cooling or heating.
eBay
40A MPPT Solar Charge Controller 12V 24V Battery Voltage Max Solar Panel 100V EPEVER Regulator With
Aliexpress UK