Facebook Pixel
Sign-Up Bonus
Get 500 Reward Points instantly when you join.
Redeem Instantly
50 points = $1 off at checkout.
Earn as You Shop
$1 spent = 1 point every time you order.
Member Perks
Unlock exclusive member-only savings and offers.

Register and Earn 500 Reward Points
Toggle Nav
Search
Toggle Nav
Join Our Loyalty Program
main product photo

MAMAC Systems VA-921-VDC-8 Humidity Sensor

Rating:
5 5 9
9  Reviews Add Your Review
Special Price $177.83 Regular Price $204.50
In stock
SKU
VA-921-VDC-8

An essential part of HVAC systems that is integrated to detect humidity levels precisely is the MAMAC Systems VA-921-VDC-8 Humidity Sensor.. With its sensitive components and creative design, this sensor—which is installed within air handling units or temperature control systems—operates by sensing the amount of moisture in the air.The sensor detects variations in humidity and converts them into electrical signals, which are then transmitted to the HVAC system's control unit for further processing. The VA-921-VDC-8 guarantees precise and dependable humidity monitoring and management since it is specifically designed to interface with varied DC voltage inputs. HVAC systems can maintain ideal humidity levels thanks to their steady performance, which is essential for guaranteeing occupant comfort, halting the formation of mildew, and protecting delicate equipment.

Add to Wish List
HVAC Controls & Electrical, Control & Sensing Devices
Manufacturer:
https://www.partshnc.com/media/catalog/product/v/a/va-921-vdc-8.jpg
Monitoring moisture conditions in the surrounding air, this humidity sensor provides humidity-related information to connected equipment controls. It functions as an environmental sensing component in designated equipment applications where humidity measurement is required. The sensor supplies measured humidity information that can be considered by the control system during equipment operation.

Sensor Operation:
Changes in surrounding air moisture are detected through the sensor’s humidity measurement function. Variations in humidity conditions are captured and represented as humidity-related information for the connected application, allowing the monitored environmental condition to be incorporated into the equipment’s control process.

Control System Feedback:
Humidity information from the sensor is provided as an input to connected equipment controls. This input gives the control system access to monitored moisture conditions when making humidity-based operational decisions and responding to the environmental conditions identified by the sensor.

Replacement Guidelines:
Replacement of the MAMAC Systems VA-921-VDC-8 Humidity Sensor is necessary when visible damage, deterioration, wear, or other physical conditions affect the sensor's intended humidity-sensing role. Inspect the humidity sensor and related connection areas for conditions that could affect proper sensing within the equipment. Replace the component when it can no longer maintain its intended sensing operation within the equipment assembly.

Common Signs of Wear:

  • Incorrect humidity readings.
  • Inconsistent humidity monitoring.
  • Equipment operation that does not correspond with expected humidity conditions.
  • Visible damage to the sensor.

Equipment Compatibility:
MAMAC Systems VA-921-VDC-8 Humidity Sensor is intended for designated equipment applications where humidity measurement or monitoring is required. Application depends on the equipment and connected control-system requirements, so the equipment identification and applicable manufacturer documentation should be compared before selecting this component.

Technical Specifications:
Brand: MAMAC Systems
Part Number: VA-921-VDC-8
Product Type: Humidity Sensor

Reviews 9
Write Your Own Review
You're reviewing:MAMAC Systems VA-921-VDC-8 Humidity Sensor
Your Rating
Product Questions (7)
Customer Questions
What maintenance is required for the MAMAC Systems VA-921-VDC-8 Humidity Sensor?

Inspect the humidity sensor periodically for dust buildup and physical damage to ensure accurate readings. Verify wiring connections remain secure and free from corrosion. Clean the sensing element gently per manufacturer guidelines to maintain performance. Replace the sensor if readings become inconsistent or calibration cannot be maintained.

What are common issues with the MAMAC Systems VA-921-VDC-8 Humidity Sensor?

  • Inaccurate or fluctuating humidity readings.
  • Loose or corroded electrical connections.
  • Intermittent sensor operation.
  • Physical damage to the sensing element.

How does the VA-921-VDC-8 detect changes in humidity?

It detects changes in moisture within the surrounding air and provides humidity-related information to the connected equipment controls.

What role does a humidity sensor play in an equipment control system?

It provides environmental information that connected controls can use when managing humidity-related operating decisions.

When can humidity information influence equipment operation?

Humidity information can influence connected controls when the equipment uses moisture conditions as part of its operating decisions.

What signs can indicate that a humidity sensor is providing unreliable readings?

Incorrect readings, inconsistent monitoring, unexpected humidity-related operation, or visible sensor damage can indicate that the sensor is not providing reliable information.

How can the correct humidity sensor application be verified before replacement?

Verify the equipment identification and connected control-system requirements to help ensure that the humidity sensor matches the intended application.

Installation Steps

Step1: Turn off power to the HVAC or control system before beginning.

Step2: Locate the existing sensor or designated mount point and remove the old unit if present.

Step3: Mount the new humidity sensor securely and connect wiring to matching terminals.

Step4: Restore power and verify the sensor reads humidity accurately in the system.