Global one-stop procurement platform for industrial spare parts.
support01@okmarts.com service@okmarts.com hydraulic@okmarts.com
Okmarts.com Online Store, Refrigeration Compressor Price, O&Kmarts Logo
Max 200 characters
Display the website inEN
EN
translate to EN
EN
translate to ES
ES
translate to العربية
العربية
All
JUMO
JUMO
  • Transmitter
    Transmitter
  • Conductivity Meter
    Conductivity Meter
  • Temperature Controller
    Temperature Controller
  • Switch
    Switch
YSI
YSI
  • Conductivity Meter
    Conductivity Meter
Y-DKK
Y-DKK
  • Conductivity Meter
    Conductivity Meter
WTW
WTW
  • Conductivity Meter
    Conductivity Meter
  • Turbidity Meter
    Turbidity Meter
TOADKK
TOADKK
  • Conductivity Meter
    Conductivity Meter
TES
TES
  • Conductivity Meter
    Conductivity Meter
  • Carbon Dioxide Detector
    Carbon Dioxide Detector
  • Hot-Wire Anemometer
    Hot-Wire Anemometer
All Brands
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
      Top Picks
      • HACH Conductivity Meter HQ440D
      1/1
      HACH Conductivity Meter HQ440D
      $ 4,909 .62

      ✔ In Stock (Can ship in 5-7 days)

      Quantity
      MOQ : 1
      Payment Methods
      T/T pay VISA pay mastercard pay Diners Club pay Discover pay JCB pay American Express pay Stripe pay PayPal pay Google pay Apple pay Link pay venmo pay
      • Online Support 24/7

      • 12 Months Warranty for New Products

      • 30 Days Money Back Guarantee

      • Specifications
      • Q&A
      • Reviews
      HQ440D Laboratory Dual Input, Multi-Parameter Meter - pH, Conductivity, Optical Dissolved Oxygen, ORP, and ISE

      Ask questions

      (0/1,200)

      Max 1200 characters

      • Q: Do I need to pay for shipping when returning a product?

        A: According to our return policy, if the return is due to product quality issues or our mistake, we will cover the return shipping fee. If it's for other reasons, the return shipping fee may be borne by you. Please refer to our return policy for specific details.

      • Q: How can I check the stock status of a product?

        A: On the product details page, you can check the stock status of the item. If a product is temporarily out of stock, we will restock it as soon as possible or provide a pre-order option.

      • Q: How can I find out about product recalls or safety alerts?

        A: We prioritize the safety of our customers and comply with product recall and safety alert notifications. You can stay informed about product recalls by regularly checking our website's safety alert section or subscribing to relevant product safety authorities' notifications.

      View More
      Question has been sent successfully

      Reviews

      • N

        Neal Hoover

        Nov 07, 2025

        HACH Conductivity Meter HQ440D
        The ultimate shopping experience.
        Helpful
        Unhelpful
      • D

        Donald Hughes

        Aug 10, 2025

        HACH Conductivity Meter HQ440D
        Found it
        Helpful
        Unhelpful
      • J

        Jayson Nordquist

        Sep 19, 2024

        HACH Conductivity Meter HQ440D
        I'm a big fan of their quick service, I'll be calling them again today!
        Helpful
        Unhelpful
      • D

        Darrell Herdman

        Sep 17, 2024

        HACH Conductivity Meter HQ440D
        I found it without any trouble!
        Helpful
        Unhelpful
      • A

        Anonymous user

        Nov 25, 2022

        HACH Conductivity Meter HQ440D
        All was ok! No problems whatsoever.
        Helpful
        Unhelpful

      HACH Conductivity Meter HQ440D

      $ 4,909 .62
      Click here to view shipping costs.

      ✔ In Stock (Can ship in 5-7 days)

      Quantity
      MOQ : 1
      Payment Methods
      T/T pay VISA pay mastercard pay Diners Club pay Discover pay JCB pay American Express pay Stripe pay PayPal pay Google pay Apple pay Link pay venmo pay
      • Online Support 24/7

      • 12 Months Warranty for New Products

      • 30 Days Money Back Guarantee

      People who bought this item also viewed

      New In stock for sale, Shimax Temperature Controller MAC5C-MSF-EN

      Shimax Temperature Controller MAC5C-MSF-EN

      US$320.46
      New In stock for sale, Toky Digital Display Controller Three-phase electric DW9LFDC30BA

      Toky Digital Display Controller Three-phase electric DW9LFDC30BA

      US$1892.00

      Customers frequently viewed

      New In stock for sale, IWAYA DENKI Water Pump 25CJT0752

      IWAYA DENKI Water Pump 25CJT0752

      US$2307.69
      New In stock for sale, Panasonic Servo Motor MHMF022L1V2M

      Panasonic Servo Motor MHMF022L1V2M

      US$653.85
      New In stock for sale, Honeywell Solenoid Valve VE4025B1045

      Honeywell Solenoid Valve VE4025B1045

      US$334.62
      New In stock for sale, ROTEN Mechanical Seal 8E5K-22-X

      ROTEN Mechanical Seal 8E5K-22-X

      US$384.62
      New In stock for sale, SANDSUN Overload Pump VA08H-760

      SANDSUN Overload Pump VA08H-760

      US$1568.40
      New In stock for sale, GS Battery 6-QW-60(450)-(55D23L-KR)

      GS Battery 6-QW-60(450)-(55D23L-KR)

      US$646.15
      New In stock for sale, Rechi Compressor 44R273A

      Rechi Compressor 44R273A

      US$341.00
      New In stock for sale, Bosch Rexroth Linear Guideway Runner Block R165381920

      Bosch Rexroth Linear Guideway Runner Block R165381920

      US$107.69
      New In stock for sale, MINDMAN Air Cylinder MCQV2-11-40-200

      MINDMAN Air Cylinder MCQV2-11-40-200

      US$88.46
      New In stock for sale, Mitsubishi Compressor YB645WTG

      Mitsubishi Compressor YB645WTG

      US$549.00
      New In stock for sale, PMI Linear Guideway MSA25R1690-40/30N

      PMI Linear Guideway MSA25R1690-40/30N

      US$200.00
      New In stock for sale, Copeland Compressor ZP15K6E-PFV-800

      Copeland Compressor ZP15K6E-PFV-800

      Contact Us
      New In stock for sale, AirTAC Air Cylinder MAJ40X110-30S

      AirTAC Air Cylinder MAJ40X110-30S

      US$38.46
      New In stock for sale, Shihlin VFD Frequency Converter SC3-023-3.7K

      Shihlin VFD Frequency Converter SC3-023-3.7K

      US$430.46
      New In stock for sale, CPC Linear Guideway MRU2MN

      CPC Linear Guideway MRU2MN

      US$42.85
      New In stock for sale, SMC Solenoid Valve SV1300-5FUD

      SMC Solenoid Valve SV1300-5FUD

      US$150.94
      New In stock for sale, KEYA Vane Pump VDP-SF-40D

      KEYA Vane Pump VDP-SF-40D

      US$261.54
      New In stock for sale, Copeland Compressor ZPT970KCE-TWE-600

      Copeland Compressor ZPT970KCE-TWE-600

      Contact Us
      New In stock for sale, Kuebler Encoder 8.5000.5352.0500

      Kuebler Encoder 8.5000.5352.0500

      Contact Us
      New In stock for sale, XINJE Servo Drive DS5E-43P0-PTA-H

      XINJE Servo Drive DS5E-43P0-PTA-H

      US$652.34

      Recent related posts

      Theoretical basis for appearance design of natural gas compressor

      09/03/2020

      Theoretical basis for appearance design of natural gas compressor

      The modern design system is an open system, especially in terms of shape, color, and materials. Ergonomics, also known as ergonomics or ergonomics, originated in Europe and the United States

      New refrigerant R450A is used for performance study of ejector refrigeration cycle

      08/02/2020

      New refrigerant R450A is used for performance study of ejector refrigeration cycle

      The new refrigerant R450A is a substitute for R134a, which is environmentally friendly and reliable. There are still few studies on it.

      Simple estimation and measurement of indoor and outdoor wind pressure difference in fresh air system

      08/05/2020

      Simple estimation and measurement of indoor and outdoor wind pressure difference in fresh air system

      At present, most of the fresh air systems we use follow the design philosophy of large air volume and slight positive pressure, but many people are also confused about this. How to detect the pressure in the room on site?

      Knowledge summary of air compressor lubricants

      08/26/2020

      Knowledge summary of air compressor lubricants

      Air engine oil is what we usually call air compressor lubricating oil. Next, we mainly introduce the relevant knowledge of air compressor oil.

      What is a Programmable Logic Controller?

      12/26/2022

      What is a Programmable Logic Controller?

      The programmable logic controller (PLC) is a digital operation electronic system specially designed for application in industrial environment.

      The advantages and disadvantages of screw refrigeration compressor

      01/07/2021

      The advantages and disadvantages of screw refrigeration compressor

      The advantages and disadvantages of screw refrigeration compressor Compared with piston refrigeration compressors, screw refrigeration compressors have obvious advantages and disadvantages.

      Which air conditioners are used by Hitachi compressors

      06/28/2020

      Which air conditioners are used by Hitachi compressors

      Hitachi compressor technology is mature, good quality, reliable performance, is the first compressor used by Gree, Midea, Chigo, Haier and other air-conditioning manufacturers. okmarts.com is an authorized dealer of Hitachi compressors, with complete specifications and sufficient supply, which can meet your purchasing needs at any time.

      What Does a Bad AC Compressor Sound Like?

      06/08/2023

      What Does a Bad AC Compressor Sound Like?

      Your air conditioning (AC) system is designed to keep you cool and comfortable during the hot summer months.

      Leading refrigeration compressor manufacturer  company operating worldwide

      06/14/2020

      Leading refrigeration compressor manufacturer company operating worldwide

      Leading refrigeration compressor manufacturer company operating worldwide Emerson GMCC Huayi Compressor Yellowstone Dongbei Randa

      Copeland compressor structural characteristics and introduction

      07/17/2020

      Copeland compressor structural characteristics and introduction

      Copeland compressor structural characteristics The semi-hermetic refrigeration compressor is a high-quality, high-performance product produced by Shenyang Gulun Refrigerator Co., Ltd., a Sino-US joint venture, using advanced technology and equipment. The air-cooled condenser is a company that uses secondary flanging fins. High-quality and efficient copper tube aluminum fin heat exchanger produced by the pipe process.

      • Welcome to O&Kmarts

        Is there anything we can help?

        Email us
      • Feedback

      Join in

      Join in to enjoy exclusive discounts and give you greater discounts

      See More About O&Kmarts Member
      Sign up now

      Common Problem

      Payment Methods
      Shipping Guide
      Sales and Refund Policy
      FAQs

      About O&Kmarts

      About Us
      Membership

      Website Terms

      Privacy Policy
      Terms Of Use
      Bidding Agreement
      Review Rules

      Customer Service

      support01@okmarts.com
      service@okmarts.com
      hydraulic@okmarts.com
      +86-28-84166335
      GMT+08:00 Mon-Fri, 9:00 AM-7:00 PM
      Customer Feedback

      POPULAR PRODUCTS :

      25CJT0752 MHMF022L1V2M VE4025B1045 8E5K-22-X VA08H-760 ad0812mb a76gl AHV60FCLT Delta BFB0712VHD Delta PFB1224UHEC8X e50s8 8000 3 t 24 Eaton Vickers KSDG4V-3-92L-40-M-U1-H7-11 Ebmpapst A6D800-AD01-01 Ebmpapst NRV118/3000-3612-030210 CN30170 FESTO VUVB-S-M32C-AZD-QX-1T1L fuji contactor sc 0 GMCC PH440G2CS-4KUS1 HONEYWELL V4ABFW16-150-112 Moog Servo Valve D682Z4862G Nidec U40X-Z7 NN29YCAMT PMD2406PTV1-A sgdv 2r8a11b yaskawa SUN CKCV-XCN Tecumseh AWA5532EGH VICKERS DG3VP-3-102A-VM-UH-10N

      Disclaimer: All brand names, model or type numbers or marks listed on the website are owned by their respective manufacturers. These terms are used for identification purposes only and are not intended to indicate affiliation with OEM companies. Product pictures shown on the website are for illustrative purposes only and the actual item may vary in design, specification, etc. Confirm at the time of purchase if you are unsure.

      © eCommerce. 2017-2026. All Rights Reserved
      © eCommerce. 2017-2026. All Rights Reserved
      Press and drag the mouse to start taking a screenshot