G1/2 Thread Temperature Probe DS18B20 Digital Temperature Sensor for Solar Water Heater
| Digital Chip | 100% Original DALLAS |
| Power Supply | 3.0~5.5VDC |
| Temperature Range | -55℃~+125℃ |
| Probe Dimension | M8, M10, M12, G1/2 ",G1/4" NPT1/2, NPT1/4 ect |
| Cable Length | 0.5M, 1M, 2M etc. Customization available. |
| Accuracy | -10~+85℃, the accuracy is ±0.5℃ |
| Resolution Ratio | 9~12 bit |
| Probe Material | Stainless Steel |
| Cable Material | PVC,Silicone,PTFEetc,Customization available. |
| Connector | MOLEX,JST,DuPont,CJT,Utype etc.Customization available. |
| Connection Mode | Black: GND, Yellow: DATA, Red: VDD+ |
PRODUCT FEATURE
1.Digital Signal Output
One Wire interface requires only one port pin for communication and no external components, enabling simple integration of the digital temperature sensor.
2.High Accuracy
Operating temperature range: -55°C to +125°C (-67F to +257F) with ±0.5°C accuracy from -10°C to +85°C, ensuring precise readings for the digital temp sensor.
3.Data Line Power Supply
Can be powered from the data line with a power supply range of 3.0V to 5.5V, supporting stable operation of the temperature probe.
4.Fast Response
Thermometer resolution is programmable from 9 to 12 bits, delivering quick and accurate temperature measurements for the digital temperature sensor.
5.Various Probe Design
Stainless steel protection pipe diameter φ6, suitable for DN15~25, DN40~DN250 various media industrial pipes and compact equipment temperature measurement, with thread options M10X1, M12X1.5, G1/2", G1/8" to fit diverse installation needs of the temperature probe.
Send us the below details and we will be able to assist you based on your requirements.
1. Operation Temperature range
2. Application
3. Probe Dimension
4. Types of Probe
5. Cable Length
5. Cable Connector
6. Any other specific request

This product is widely used in boiler temperature measurement, room temperature measurement, agricultural greenhouse temperature measurement, clean room temperature measurement, freezer, granary, storage tank, telecommunications room, power room, cable trough temperature measurement control field. Bearing bush, cylinder block, spinning machine, air conditioning, and other small space industrial equipment test temperature control. Heating/refrigeration pipeline heat metering, central air conditioning and industrial temperature measurement control.
VOTESEN is headquartered in Xi’an, one of China’s top sensor industry hubs, and has been a leading sensor manufacturer since 2018. We specialize in developing and producing high-quality digital temperature sensors, pressure sensors, and environmental sensing instruments. Our products are widely used in industries such as industrial automation, automotive electronics, medical health, and environmental monitoring. VOTESEN maintains CE and RoHS certifications to guarantee product safety and reliability. Our extensive global customer base includes more than 150 countries, supported by comprehensive OEM/ODM capabilities and professional technical services. We strive to continuously innovate and optimize production technology to remain a preferred supplier worldwide.
Choose VOTESEN’s G1/2 Digital Temperature Sensor for reliable and precise temperature measurement in water heating systems. Contact us today to get expert support and competitive pricing tailored to your project needs.
Q: Where physically on the device does the temperature measurement take place?
A: The DS18B20 does not sense temperature directly through the package. For all package types, the DS18B20 senses temperature primarily through the GND pin. Ensuring a good thermal connection between the GND pin of the device and the heat source you wish to measure will provide the best results.
Q: Is there a way to extend the temperature range of the DS18B20?
A: No, there is not a way to increase the range it reads. The DS18B20 reads with an accuracy of ±0.5°C from -10°C to +85°C and ±2°C accuracy from -55°C to +125°C.
Q: Will a conformal coating affect the thermal response of the DS18B20?
A: A thin conformal coating will not affect the thermal response of the device.
Q: Using OneWireViewer, can more than one DS18B20 be logged?
A: Yes, every DS18B20 will have a file where you can store the data. Data will be received from one DS18B20 at a time.
Q: Can you power the DS18B20 from a 3V battery?
A: The DS18B20 can be powered from any source. Since batteries will dip in voltage, a nominal 3V battery may not always supply the minimum 3.0V the DS18B20 requires. We suggest a step-up voltage regulator is used to ensure the device is supplied within its rated voltage range of 3.0V to 5.5V.