Specifications

-1-
Definition of basic parameters in this specification (unit ℃)
§The temperature of the temperature sensing head in the box…… T ;
§User - set temperature ……………………………………………………Ts ;
§Compensation temperature …………………………………………………Tb ;
§Display temperature ……………………………………………… Td =T+Tb ;
§Boot temperature ……………………………………………………Tk =Ts+1 ;
§Shutdown temperature ………………………………………………Tt =Ts-1 .
1. Product basic features
1.1 Single-chip control ;
1.2 key operation ;
1.3 Thermistor senses temperature ;
1.4 Power on / off function ;
1.5 temperature compensation ;
1.6 Three-speed battery protection ;
1.7 Digital tube screen display ;
1.8 Bluetooth reservation ;
2. Technical parameter requirements
2.1 Rated voltage: DC12V/24V ;
2.2 Temperature setting range : -20 ℃ ~+10 ℃ ;
2.3 Power-off memory function: the working state ( on-off state, working mode ) before
power-off , needs to be automatically restored after the next power-on;
2.4 The normal working temperature of the circuit board: -10 ℃ ~+60 ℃ ; Storage
temperature: -40 ℃ ~+80 ℃ ;
2.5 Anti-positive and negative pole reverse connection function: The whole machine will
not work if the positive and negative poles are reversed, and components cannot be
damaged, etc.;
2.6 Standby current : ≤ 35mA ;
3. Hardware configuration
3.1 display board 1 piece
 1 A digital tube display;
 4 a tact switch button;
 Sheet: FR-4 , double-sided;
 Buzzer: none
 USB Output: 5V/2.1A ;
 Lighting interface : 12V/24V ;
3.2 Lighting lamp : DC12~24V power supply ;
3.3 Temperature Sensor 1 indivual
 R25 ℃ =10K±1% , B(25/50)=3435K±1% .
3.4 load configuration
 compressor 1 ( customer - prepared ) ;
 compressor module 1 ( customers bring their own ) ;
 fan 1 ( customer - prepared ) ;