Product Description
The CWS19 wall-mounted temperature and humidity sensor uses a high-precision temperature and humidity integrated chip. Temperature is measured by the diode temperature-sensitive P-N junction, which has the characteristic that the forward depressurization changes with temperature under constant current. Humidity The humidity is measured by using a humidity-sensitive capacitor whose value changes with the humidity. The temperature and humidity compensate each other and are then amplified by an amplifier circuit into a standard digital or analog signal of relative humidity and temperature.



Product parameters
Basic parameter | |
---|---|
Measuring medium | Gas (compatible with contact materials) |
Temperature range | -40 ~ 0 ~ 125℃ |
Humidity range | 0-100%RH(relative humidity) |
Overall weight | ≈160g with display, ≈138g without display |
Response frequency | ≤2Hz |
Stability performance | ±1%RHFS/ year, ±0.2℃/ year |
Class of protection | IP65 |
Response speed | Temperature response time, 15s without filter, 55s with filter; Humidity response time, 15s without filter, 35s with filter (temperature at 10℃ per step, humidity at 10%RH per step, gas flow rate of 0.1m/s) |
Output power supply | |
Output signal | 4 to 20mA, RS485, 0 to 10VDC |
Power supply range | 12 to 24VDC, 24VDC |
Maximum power | |
4 to 20mA | No display ≤0.05Us(W), no display ≤0.06Us(W) |
RS485 | No display ≤0.015Us(W), no display ≤0.025Us(W) |
0 to 10VDC | No display ≤0.015Us(W), no display ≤0.025Us(W) |
Load characteristic | |
Voltage mode | 100 k Ω or higher |
Current mode | 200 or less Ω |
Environmental condition | |
Ambient temperature | -40 ~ 85℃ |
Ambient humidity | 0% ~ 95%RH(no condensation, no condensation) |
Electrical protection | |
Short circuit protection | permanent |
Inverse pole protection | No damage, but no work |
Insulation resistance | ≥100MΩ, 500VDC |
Insulation strength | 500VAC |
Output restriction | |
4 to 20mA | The minimum output is 4mA and the maximum output is 20mA |
RS485 | The minimum output is 0 and the maximum output is 1650/1000 |
0 to 10VDC | The minimum output is 0.001VDC and the maximum output is 10VDC |
Overall material | |
Main casing | ABS Engineering Plastics (contact with tested media) |
filter | Polyethylene (density 50μm) (contact with tested medium) |
Cable locking head | Nylon (lock wire diameter 4 ~ 6mm) (contact with the measured medium) |
reveal | LCD LCD display with backlight |
Sealing element | Nitrile butadiene rubber |
Mechanical stability | |
Vibration resistance | 5g(20… 2000Hz) comply with IEC60068-2-6 standard |
Impact resistance | 500g/1ms complies with IEC60068-2-27 standard |
Product Display

Appearance patent design: face, strength, not to be underestimated
Design patent: Patent No. ZL202030508001.3 Patent No. ZL202030511326.7
Slide structure patent: convenient installation and maintenance
Utility model patent: Patent number ZL201821819335.6
Elastic fastener: make the shell and fastener more firm
New probe patent design: polyethylene material, dustproof, anti-corrosion, breathable
Utility model patent: Patent number ZL202121872081.6
Dip adjustment: eight temperature ranges, can be adjusted by itself
LCD display with backlight, dark environment easy to observe
A number of qualification certification: star instrument quality, trustworthy

Measurement range and accuracy: the temperature measurement range is -40 ~ 0 ~ 125℃, the accuracy can reach ±0.5℃; The humidity measurement range is 0% RH to 100% RH, with high accuracy
Stability and compensation: good long-term stability, the use of full range temperature compensation technology to reduce the impact of ambient temperature on the measurement results
Flexible installation: wall-mounted installation or rail installation, suitable for a variety of indoor environments
Good protection performance: It has a high level of anti-dust protection and can work stably in a dusty environment
Display function Optional: there are two models with and without display, and the one with display is equipped with LCD LCD screen, which is convenient for on-site data viewing

CWS19 wall-mounted temperature and humidity sensors are widely used in industrial, agricultural, medical, HVAC and other fields, such as petroleum, chemical, metallurgy, water conservancy, Marine, hydraulic pneumatic and other industries of production workshops, warehouses, computer rooms, agricultural planting and breeding environment, hospital wards, clean rooms, and air conditioning system outlet, return air outlet and other locations.
Size & Interface

Application Cases
Star Sensor Manufacturing Co., LTD., the main products involved in the pressure transmitter, liquid level transmitter, temperature transmitter temperature and humidity transmitter, differential pressure transmitter, soil moisture transmitter, 3051 transmitter and related instrumentation accessories under the star brand products have obtained a number of patent certificates issued by the state, Such as CE certification, IS9001 certification SGS certification, TUV SUD certification, explosion-proof certification and so on. Sensors are used in a wide range of industries Hydraulic system, industrial equipment, refrigeration equipment, intelligent iot, exhaust gas and exhaust gas, indoor and outdoor environment monitoring, soil moisture regulation, chemical and petrochemical, oil and natural gas, torque measurement, engineering machinery, HVAC, water and wastewater, airtight monitoring, industrial gas, planting and breeding, food and beverage industry, pharmaceutical and biotechnology, pulp and concrete, settlement monitoring, etc Yes.



Company Introduction
Star Sensor is a manufacturing high-tech enterprise integrating research and development, production and sales, and has been engaged in the research and development, design and production of various transmitters and related instruments for many years. Xingyi with high quality products, intimate and perfect after-sales, strive to provide users with sensing measurement solutions! The main products are pressure series, liquid level series, temperature series, temperature and humidity series, differential pressure series, soil moisture series, torque series, wireless series and transmitter related accessories.



Service
- Manufacturer: Star sensor has a number of industry production equipment, modern production process. Xingyi's own research and development system, from order to production to optimize the production quality and speed of each link,
- Imported components: satellite sensor selection of high-quality components, imported Germany Hersman plug, long-term stability; Imported silicon wafer, high precision; Imported integrated chip, anti-interference, good stability.
- R&d team: Satellite sensor has a number of sensing technology R&D personnel, committed to product optimization and new product development from beginning to end. A variety of products have obtained a variety of patent certification.
- Product traceability: Each transmitter manufactured by Xingyi has a separate industrial QR code number, and each transmitter sold can trace its parameters and customized content, which is convenient for after-sales and re-customization.
- After-sales service: The satellite sensor has a perfect after-sales testing department, and the installation and use problems encountered in the field use of the product can be well answered by technicians.