W1209 Blue LED Digital Temperature Controller Board Micro Thermostat Electronic Temp Control 12V DC Sensor Module Switch with One-channel Relay and Waterproof

These are popular temperature controllers with waterproof probes, which can define your temperature setpoint and the relay is opened/closed when the threshold is crossed. High precision temperature controller, temperature control switch, miniature temperature control board, probe. Multiple modes to choose.  

Features:
Digital display intelligent temperature controller XH-W1209.
Blue LED shows numbers more clearly. 
High precision temperature controller, temperature control switch, miniature temperature control board, probe.
Resolution is 0.1℃ when temperature is -9.9~99.9 ℃, other temperature segment is 1℃.
Widely used in the hatching area, equipment case, air conditioning system, temperature control protection and other fields.
Lightweight, small size and easy to use.

Specifications:
LED color: blue
Temperature range: -50-110℃
Temperature control mode: ON / OFF 
Resolution at -9.9 to 99.9℃: 0.1℃
Resolution at all other temperatures: 1℃
Control accuracy: 0.1℃ 
Hysteresis accuracy: 0.1℃
Refresh rate: 0.5 seconds 
High temperature protection: 0-110℃
Supply voltage: DC 12V
Static current: ≤35mA, attract current ≤65mA
Measurement input: NTC (10K 0.5%) waterproof sensor
Operating temperature: -10 ~ 60℃ 
Operating humidity: 20% -85%
Item size: 4.85 * 4.01 * 1.58cm / 1.91 * 1.58 * 0.62in
Item weight: 19.3g / 0.68oz
Package weight: 22g / 0.78oz
Package size: 5.5 * 5 * 2.5cm / 2.17 * 1.97 * 0.98in

How to use:
Connect the power supply and the load, you can supply to the controller. 
It displayed as a measured temperature. 
Press the "SET" button, the display flashes the temperature; 
Press " + or - " to set the desired temperature (long press " + or - " to quickly increase or decrease);
After setting press SET to confirm return; 
The controller automatically performs the relay by setting off! 

Lights, LED status descriptions: 
Indicator: "Off" The relay is switched off, "Always" indicate the relay is closed. 
LED: Shows "LL" is the sensor open, showing "HH" is out of range, the thermostat will be forced to close the relay, the display, as high temperature protection.

Function Setting Table: 
​long press "SET" to enter into setting
 

Code number	Code	Set range	Factory setting
P0	Cooling / Heating	C/H	C
P1	Hysteresis Setting	0.1-15	2
P2	Highest Setting Limit	110	110
P3	Lowest setting Limit	-50	-50
P4	Temperature Correction	-7-7℃	0
P5	Delay Start Time	0-10 Minute	0
P6	Key Tone Switch	0-110	Off

When the Thermostat is power off, long press "- or +", you can restore the factory settings 

Package list:
1 * W1209 Digital Temperature Controller Board