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For the thermometer:

Installation size:

Operating Environment:

Ambient temperature range: -40 ℃ ~ 80 ℃ (can not be plunged, orelse this will cause condensation)
Ambient humidity range: 10% ~ 90% (no condensation)

The main function parameters:

Power voltage: DC 12V to 24V
Power consumption: 30mA (DC12V Power)
Temperature measurement display range: -55 ° C to +125 ° C / -67 ° F ~ +257 ° F
Display Resolution: 0.1 ° C
Measurement accuracy: 10 ℃ ~ 40 ℃: ± 0.2 ° C ; -10 ° C ~ + 85 ° C: ± 0.5 °
Measuring cycle: typical 3 times / sec or faster
Transmission distance: random matching DS18B20 (waterproof package) , maxmum is 300m.
show temp readings in either C or F
C/F selectable by pressing the switch S1, S1 is on the back of the meter, you will find it when you open the meter.
Note: "----" means probe failures (short circuit or open circuit)
sensor: supporting stainless steel waterproof package DS18B20

For the DS18B20 Sensor:

Length of Cable : 3m
Size of Stainless steel sheath: 6*50mm
Output leads: Brown(VCC), Blue (DATA), Black (GND)
Waterproof
For each lead, we use 30pcs tinning lines, which is different from other DS18B20 sensor wires, it is soft and has better oxidation resistance ability
flexibility resistance
better thermal conductivity
The DS18B20 we shoose is from DALLAS Semiconductor Corporation in the United States. It the first temperature sensor which support "bus line" interface, It has a miniaturized, low power consumption, high performance, anti-interference ability and easy to match microprocessor, etc., Compared thermocouple sensor, it can achieve high-precision temperature measurement

Package