Ocean Controls Limited
                                                                                                           
Verified Supplier
24 Years
Since 2002
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STN621 24V Digital Thermostat 2 Heat 1 Cool NTC Relay HVAC Control 120x98x28mm

Price Negotiable
Price: Negotiable
MOQ: 1 piece
Delivery Time: 7-50 work days
Brand: OCSTAT
Product Description
Product Overview

The STN621 is a 24V non-programmable room thermostat featuring an LCD screen, designed for HVAC system heating and cooling applications. This energy-efficient thermostat delivers stable performance with straightforward operation.

Key Features
  • 2 Heat / 1 Cool operation modes
  • Heat Pump compatible
  • Non-programmable design
  • Battery or 24V power options
  • Electric or Gas configurable
  • Separate B & O terminals
Technical Specifications
Dimensions120 x 98 x 28 mm
ProgrammabilityNon-programmable
Output TypeRelay output
Accuracy±1℃ (at 20℃)
Power SourceDC 2 x AAA 1.5V Alkaline batteries
Mounting TypeWall mounted
Temperature Range32℉-99℉ (1℃-40℃)
Control Temperature Range44℉-90℉ (7°C-32°C)
Product Images
STN621 24V Digital Thermostat front view and display STN621 thermostat installed in residential HVAC application STN621 thermostat technical specifications and wiring diagram
Competitive Advantages
  • We beat any official quote - competitive pricing guarantee
  • CE certified and 100% tested for quality assurance
  • Personalized customer service and lasting relationships
  • Highest quality goods with comprehensive after-sales support
  • Optimized buying experience tailored to your needs
  • Patented product design for unique market positioning
Trade Information

Trade Terms: FOB, CIF, EXW

Payment Methods: T/T, L/C, Western Union, PayPal, Money Gram

Delivery Time: 7-45 work days based on material inventory and production process

Shipping Methods: By sea, by air, and by express delivery

Warranty: 1 year comprehensive coverage

Manufacturing Services
  • Specialized thermostat design and manufacturing expertise
  • Dedicated R&D team for custom design requirements
  • Sample shipment within 7 work days
  • Small quantities and mixed bulk orders accepted
  • Prompt response and efficient product solutions
  • OEM/ODM services available per customer specifications
  • One-year warranty on all products with responsive support

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Ocean Controls Limited
Location Unit C,9/F Winning House,No.72-74 Wing Lok Street, Sheung Wan,Hongkong
Contact Person Coco Pan

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