Why do dew point readings fluctuate?

Common causes include: Contamination on the probe surface Inaccurate temperature measurement Unstable power supply or wiring Probe aging, requiring recalibration

Why does the response time slow down?

Possible reasons include clogged filters, overly thick protective sleeves, excessively long sampling tubes, or slower water absorption/desorption of the probe material. Cleaning, shortening the sampling path, or replacing the probe with a faster model can improve response time.

Wall-Mount Dew-Point Temp Humidity Transmitter RS485 IP65 Extended Probe for High-Temperature Site Monitoring

Name: Wall-Mount Dew-Point Temp Humidity Transmitter RS485 IP65 Extended Probe for High-Temperature Site Monitoring
Brand: Shandong Renke Control Technology Co., Ltd.
SKU: 2191213562

Shandong, ChinaShandong Renke Control Technology Co., Ltd.

US$25.00-32.00

1 Piece

Product profile

Customization

Available

Installation Type

Wall-Mounted Type

Output Signal Type

RS485

Model NO.

RS-DEW-N01-2-*-T

Production Process

Integration

Measuring Medium

Dew Point Temperature and Humidity

IP Rating

IP65

Certification

Customized

DC Power Supply

DC 10-30V

Dew Point Temperature Range

-30℃~100℃

Dew Point Temperature Display Resolution

0.1℃

Temperature Display Resolution

0.1℃

Humidity Display Resolution

0.1%Rh

Transport Package

Box

Trademark

Renke

Origin

Shandong, China

Production Capacity

1000 Pieces/Month

Key features

IP65 Weatherproof Design: Wall-mounted housing with IP65 rating for rain and snow protection.

RS485 Communication: Industrial-grade microprocessor with dedicated RS-485 circuitry for stable data transmission.

Wide Power Supply Range: Supports DC 10-30V input for flexible installation environments.

CE and RoHS Certified: Complies with international safety and environmental standards.

Customizable Specifications: Offers customizable DC power, temperature range, and display resolutions.

Company profile

OEM ServicesProduct CertificationPatents AwardedR&D Capabilities

Shandong Renke Control Technology Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤6.16h

AI-Powered supplier vetting

SummarySHANDONG RENKE CONTROL TECHNOLOGY CO., LTD. is identified as a Jinan-based trading company operating in manufacturing-related industries, including integrated circuits and environmental monitoring instruments. The supplier reports ISO9001:2015, RoHS, CE, and FCC certifications. It provides extensive customization and ODM services, has introduced new products within the past year, and reports OEM service for well-known brands. Production-related information includes sensor productivity of 400,000 pieces and five quality inspectors, although finished-product inspection has instructions but no written records. The supplier lacks inventory, overseas warehouses, overseas agents or branches, and a valid manufacturing-capacity contract with affiliated subcontractors. Financial records are referenced for 2022–2024, but no monetary figures or detailed financial indicators are provided. Customer evidence is limited to one associated buyer name and does not establish the scope or quality of completed projects.

CertificationsThe supplier reports an ISO9001:2015 certificate and product certifications including RoHS, CE, and FCC. These certifications explicitly support quality-management and product-compliance capability.

After-Sales capabilityThe supplier reports no inventory capability, no overseas warehouse, no overseas showroom, and no overseas agents or branches. It also reports serving zero countries overseas, so the provided evidence does not demonstrate strong after-sales coverage, particularly internationally.

R&D capabilityThe supplier reports new products within the past year, provides ODM services, and offers customization from samples, designs, and full specifications. However, it reports no available SDK, so innovation capability is supported in product development and design services but not across all technical-development resources.

Production capacityThe supplier reports sensor productivity of 400,000 pieces, five quality inspectors, and production equipment including an MST mounter and auto-soldering and soldering capabilities. Nevertheless, it has no valid manufacturing-capacity contract with affiliated subcontractors, and its inspection and supplier-assessment procedures lack written records, limiting assurance of production control.

Customization capabilityBoth reported design-service fields list customization from samples, designs, full customization, minor customization, and flexible customization. The supplier also reports ODM capability, providing explicit evidence of broad customization support.

Product Q&A

Q:Why measure dew point?

Industrial compressed air and gas systems can be directly damaged due to water contamination or subsequent freezing and expansion of water. The presence of water vapor in the air or gas can also affect process or product quality. It is common practice to remove water contamination through filters and drying systems, but due to the dew point (and potential destructive condensation) varying with pressure changes, the risk of damage to the entire factory can also differ.

Q:How to measure dew point?

Dew point is typically measured using a dew point sensor or hygrometer. There are several methods to measure dew point, including: Chilled Mirror Hygrometer, Capacitive Hygrometer, Resistive Hygrometer, Infrared (IR) Hygrometer, Psychrometric Charts, Electronic Sensors.

Q:What is dew point sensor?

Dew point sensor is a specialized instrument used to measure the dew point temperature in a gas or air mixture.

Q:How does the dew point sensor work?

Working principle of dew point sensor: When the ambient temperature falls below the dew point, water vapor in the air condenses into liquid. Conversely, when the ambient temperature is above the dew point, the air contains saturated water vapor and forms dewdrops. In an environment with a relative humidity of 100%, the water vapor content in the air is directly proportional to the humidity of the ambient air.

Q:What is the difference between humidity sensor and dew point sensor?

Dew point is an absolute measurement, while humidity is a percentage. Therefore, dew point is considered a more accurate method of measuring air humidity and comfort. Additionally, humidity depends on air temperature, while dew point does not.