HanYoung
Taisee
Eurotherm
All Brands
- a
- b
- c
- d
- e
- f
- g
- h
- i
- j
- k
- l
- m
- n
- o
- p
- q
- r
- s
- t
- u
- v
- w
- x
- y
- z
- 3
- 7
Fast Track to a Quote
1/4
Certification | Testing
Factory Certified
Refund guarantee
24h refund guarantee
Secure Payment
PayPal Verified
Brand New
In Stock
Fotek Temperature Controller NT-21L
17 inquiries last 6 mos.
US $ 190 .38 / ea
Registered Members Enjoy Exclusive Discounts
Quantity
2
Payment Methods
Need a Same-Day Quote?
Send your PO or PDF list directly to our specialists now
Need help confirming model compatibility?
Get fast and efficient assistance from our experienced technical sales and customer service teams. No question is too small, and no problem is too big.
100% Original
Genuine OEM Parts
Fast Delivery
Shipped via FedEx / DHL / UPS
12-Month Warranty
Worry-Free Coverage
Secure Packaging
Safe & Reliable
5,000+ Global Suppliers
Trusted by Professionals
Professional Model-Matching System
Send us your model numbers or nameplate details.
We will match your request with our 5,000+ verified suppliers and issue a quotation.
Self-adaptive Fuzzy+PID Temperature Controller.
Why Global Buyers Choose O&Kmarts
O&Kmarts:
- Access to a wide range of SKUs across multiple brands and series
- One RFQ connects you to 5,000+ global supplier quotes
- Better availability for urgent and hard-to-find parts
- Faster global delivery via FedEx / DHL / UPS
- Easier access to rare and high-value models
- Flexible sourcing for individual parts or complete solutions
- Lower MOQs and more adaptable buying options
- Multi-brand procurement in one order
- OEM replacement and alternative model solutions available
- Fewer intermediaries, ensuring more competitive pricing
Why Global Buyers Choose O&Kmarts
Local Suppliers:
- Limited to fast-moving SKUs only
- Limited local market availability
- Inventory frequently fails to meet urgent demand
- Long replenishment cycles, often taking weeks
- Rarely stock high-value compressors (e.g. Copeland YHV119)
- Frequently require bundled purchases
- Rigid and difficult MOQ negotiations
- Limited brand selection
- Minimal or no customization capability
- Higher local distribution and markup costs
Top Questions from OKmarts Buyers
Q: How does OKmarts handle unexpected price fluctuations or tariff updates after an order is placed?
A: Once a Proforma Invoice is issued and payment is confirmed, your pricing is legally locked. OKmarts absorbs any subsequent raw material price spikes, supplier price adjustments, or sudden export tariff increases, guaranteeing that the price you pay at checkout is final.
Q: Can OKmarts assist in verifying technical compatibility before I place a high-value order?
A: Yes. Buyers can upload existing equipment nameplates, system schematics, or parameter requirements. Our applications engineers will cross-verify physical dimensions, electrical ratings, and communication protocols (e.g., Profinet, EtherCAT) before finalizing the order.
Q: What should I do if the specific part number is obsolete or discontinued by the manufacturer?
A: Our technical engineering team specializes in obsolescence management. If a part is lifecycle-discontinued, we utilize our cross-reference database to recommend exact drop-in replacements or functionally equivalent alternatives, ensuring minimal redesign for your machinery.
NT-21L
Fotek Temperature Controller NT-21L - fotek - temperature-controller
High Efficiency
Stable Performance
Long Service Life
Related Products
Q&A
The field is empty. Please enter some content before clicking Send
Q: Can I pre-order upcoming products?
A: Yes, for upcoming popular products, we often offer pre-order options. You can find pre-order information on the product page and follow the instructions to place a pre-order.
Q: How can I create an account?
A: To create an account, click on the "Sign Up" button on the top right corner of the website, and follow the instructions to provide the required information.
Q: What should I do if a product is lost or damaged during shipping?
A: We purchase shipping insurance for every order to ensure the safety of the products during transportation. If the products are lost or damaged, please contact our customer service team promptly. We will assist you in resolving the issue and provide appropriate compensation.
Customer reviews
5.0
Based on 5 reviews
5
5
4
0
3
0
2
0
1
0
Aug 17, 2025
Reba Waltersspeedy and hassle-free service. NT-21L is clutchHelpful?(1)(0)Jan 02, 2025
Juan LujanNot easy to find, but I'm glad I persisted. NT-21L is clutchHelpful?(0)(0)