Solar collector control electronics 12V temperature switch heat difference control electronics and DS18B20 detection sensor

Temperature difference controller

Input voltage: 5V 12V or 24V, the design can be selected along with the price
Maximum switchable current: 5A
Adjustable temperatures: between -40 +125°
Size: 6x3x2 cm

DS18B20 Temperature Sensor Sensor

Temperature tolerance -50 to +125° C
Measuring range -50°C - +125°C
Cable length: 1 meter, can be extended or longer can be purchased
Head diameter 6 mm, length 50 mm
Protection: IP65

Setup

K1: Press and hold for 2 seconds to function setting or exit function setting; Short press to set upper and lower limit or delay time
P- 1 - In P-4 mode: press the K1 button until the display flashes.
Use the K2, K3 buttons to set the first T1 threshold temperature, then press the K1 button,then the display flashes again. 
Use K2, K3 to set the second threshold temperature T2, then press K1.
In P-5 mode: press the K1 button until the display flashes.
< span style="color: #000000;">Use K2, K3 to set the first T1 threshold temperature, then press K1,then the display will flash again. Set the delay time with buttons K2, K3.
K1 button: radio button
K2 button: plus
K3 button: minus

Package Contents:

1 x YYW-1 5V / 12V / 24V DS18B20 Temperature Sensor Switch Module
1 x sensor cable

Solar collector control electronics

It can be operated with 5, 12 or 24V power supply, its output is a relay, which e.g. it can switch on a pump or electric heating or cooling.
Adjustable temperature range: between -40 +125°.
Adjustable delay (hysteresis), i.e. e.g. switches off at 60°, but does not switch back on until it decreases e.g. to 55°. This avoids continuous switching on and off.
This can also be set in cooling mode, i.e. the relay closes until the room cools down, e.g. to 24°, but does not retract again until e.g. 25°.
DC-: negative input of the power supply
DC +: positive input of the power supply
NC: The relay is closed
NO: The relay is open
COM: Relay common point

Feature description:

P-1: Heating control: If the measured temperature is lower than T1, the relay short close, open above T2

P-2: Cooling control: If the measured temperature is higher than T2, the relay short close iflower than T1 then open

P-3: Constant temperature control: If the measured temperature is between T1 and T2, the closes relay,otherwise open

P-4: Constant temperature control: If the measured temperature is between T1 and T2 , the relay open, otherwise closed

P-5: Setting the delay time