The PHH-128 indicator combines 5 meters into one easy-to-use wall mounting continuous monitor, featuring a large, duallevel, backlit LCD display. This meter can display the EC/TDS/CF (conductivity factor) of your solution together with the choice of either pH (probe sold separately), or oxidation-reduction potential (ORP) (probe sold separately) and temperature.
The precision pH monitor immediately detects changes in solution pH or ORP. The multi-parameter water quality monitor is a versatile instrument with a reliable multi-probe system which is easy to read, economical and can be used by technical or non-technical personnel.

The 6-in-1 PHH-126 meter was designed with a built-in rechargeable battery. The built-in battery can last approximately 3 years, with standard charging time of approximately 2 hours. The PHH-126 can measure 4 parameters including pH (probe sold separately), temperature, conductivity and TDS. This multi-parameter water quality monitor is a versatile instrument with reliable multi-probe system which is easy-to-use and easy-to-read. It features simultaneous measurements of pH probe (sold separately), temperature (°C or °F), conductivity (EC or CF) or TDS with a single push of a button. The PHH-126 is economical and designed for both nontechnical and technical personnel to use.Specifications Measure Range

An upgraded version of our PHH-126, the PHH-127 has been designed to bring you the most advanced and most functional water tester in the market today. The PHH-127 has a built-in rechargeable battery with wall plug charger with a standard charging time of approximately 2 hours. It can measure 5 parameters including, ORP (mV probe sold separately), pH (probe sold separately), conductivity (CF or EC), TDS (PPM) and temperature. The multi-parameter water quality monitor is a versatile instrument with a reliable multi-probe system which is easy to read, economical and can be used by technical or non-technical personnel.

The CDB31 is supplied in a compact case made of ABS and splash proof panels in polycarbonate, allowing them to be used at chemically aggressive environment. The case is ergonomically designed to allow a perfect angle for the user to operate the instrument. Designed with the latest in circuit technology, the CDB31 has low power consumption and fast response. The menus are self guiding and allow the user to choose preferences via a simple membrane keypad.

The DOB21 is a compact benchtop dissolved oxygen meter and a amperometric dissolved oxygen probe with automatic temperature compensation for field or laboratory applications. The unit measures dissolved oxygen in ppm or percent saturation and temperature in degrees Celsius. Programming is conveniently done via a three button keypad and stored in the non-volatile memory. The unit also includes an audible minimum and maximum alarm. The DOB21 kit is supplied with the dissolved oxygen probe, a cellmaintenance kit, BOD kit and operator’s manual all in a hard carrying case.

The CDB-387 is a microprocessor-based, benchtop conductivity, resistivity and TDS meter. The unit has a large LCD display and membrane keypad for easy operation. The meter features automatic temperature compensation, programmable temperature coefficient, recorder output and bi-directional RS-232C output. The CDB-387 measures 5 conductivity ranges, 2 resistivity ranges and 4 TDS ranges. The CDB-387 will automatically select the most suitable range to provide maximum resolution. The CDB-387 operates off ac power or a 9 V battery. The 9 V battery serves as a back-up to retain calibration data, even in the event of a power failure, and allows for portable field measurements. The unit is supplied with a glass dip-style conductivity cell with an integral temperature sensor, K = 1.0, calibration solutions and 9V ac adaptor.

The TRH444 is a compact turbidity analysis instrument designed for precision measurement of turbidity. The meter is equipped with an advanced microprocessor that results in long-term stability over a wide range of operational conditions. With its low level precision and accuracy, the TRH444 meets "GLP" standards for water and wastewater analysis. The TRH444 can be used to detect turbidity in three selectable ranges (0.01 to 10, 0.1 to 100 and 1 to 1000 NTU units) for turbidity. Other features on this all-in-one meter include automatic range selection, signal averaging, data logging up to 99 readings, RS232 interface port (for PC or printer connection) and language selection (English, Spanish or Portuguese). With it’s self guided programming menu the TRH444 is an ideal choice for regulatory monitoring, process water testing, and environmental water analysis in the field or laboratory.

The model PHI-359 benchtop analyzer provides both ion concentration and pH measurements. In the ion measuring mode, the PHI-359 displays measurements in direct concentration values, eliminating the need for evaluating mV values. In the ion concentration calibrating mode, the meter calculates the relationship between two standards and stores this in memory; this avoids the need to manually plot a calibration curve.

The Model PHB-357 microprocessor-based, benchtop meter brings very accurate pH and mV measurements to the laboratory. Useful design features include automatic buffer recognition, automatic calibration, recorder output for permanent recordkeeping, splashproof keypad to prevent damage from spills, display hold function and 9 V battery memory back-up. With 0.1 mV resolution, this versatile instrument can also perform ion selective measurements. It operates on either 115 Vac line power or a 9 V battery. Supplied with the PHB-357 meter is an epoxy-bodied general purpose pH electrode, a temperature probe and an ac power adaptor.

Pocket-sized ISE meter for measuring chlorine directly in parts per million. It can also be used to display sample temperature or test for pH and ORP. The unit includes 100 reagent tablets at almost half the price of similar Chlorine ISE reagents. Interchangeable flat surface sensor modules make this the most versatile pocket tester ever offered.

The CDH221and CDH222 are ideal for quality control, agricultural industry, water conditioning, beverage, fish hatcheries, laboratory, universities and many other Industrial applications. These microprocessor based digital meters are rugged, portable units which are able to recognize and compensate for electrode offset and slope. The CDH222 also features RS232 output. Overload indication and Data Hold are standard on both units. In addition the CDH222 offers °C or °F selectable, auto shutoff, and TDS measurement.

The CDH221and CDH222 are ideal for quality control, agricultural industry, water conditioning, beverage, fish hatcheries, laboratory, universities and many other Industrial applications. These microprocessor based digital meters are rugged, portable units which are able to recognize and compensate for electrode offset and slope. The CDH222 also features RS232 output. Overload indication and Data Hold are standard on both units. In addition the CDH222 offers °C or °F selectable, auto shutoff, and TDS measurement.

The CDCN442 toroidal conductivity system isdesigned for online monitoring of chemically aggressive process solutions, water applications that coat or foul traditional sensors, and plating bath operations in which high current densities are present. The sensor consists of 2 metallic ribbon coils that are fixed in place by the sensor jacket material. The drive coil is used to induce a current in the process solution. The second sensing coil is used to measure the current in the process solution; the magnitude of this current is proportional to the conductivity of the process solution. Toroidal sensors are available in polypropylene, and PEEK™ to ensure that sensor-wetted materials are chemically resistant to process chemicals. The sensor material is nonconductive, thereby isolating the sensor from electrical noise and ground loops that can influence the integrity of the measurement. This material also makes the sensor resistant to electrode coating, since most substances do not adhere to the sensor material. Sensors can be submersion mounted for easy installation in open tanks or pipe mounted in the optional 51 mm (2") tee fitting, which is keyed to the sensor for proper alignment. Tee fitting material is polypropylene. For larger pipe diameters, the sensor can be insertion mounted through a 11.2 NPT ball valve for easy retraction. The monitor comes with concentration/temperature tables for sodium hydroxide, potassium hydroxide, hydrochloric acid, nitric acid, and sulfuric acid. A configurable table allows the user to enter data points for a custom concentration curve. Typical applications include waste water treatment, power plants, thermo electric plants, pharmaceutical, photographic industries, soft drinks industries.

The OMEGA® CDH-SD1 is innovative and easy to operate. What sets the CDH-SD1 apart from other conductivity meters is that it incorporates a real-time SD card data logger. The CDH-SD1 measures conductivity, TDS (Total Dissolved Solids) or salt concentration using a carbon rod electrode for long life. Downloading data from the SD card into an Excel spreadsheet allows the user to do further data or graphical analysis without special software. The CDH-SD1 has a wide variety of applications from water conditioning, aquariums, beverage manufacturing and fish hatcheries to food processing, photography, paper and plating industries, educational and other laboratories.

DOCN601 Series Dissolved Oxygen analyzers/controllers are a rugged and dependable industrial grade microprocessor-based instruments that is extremely easy to use.
Its large, bright LED digital display is clearly visible even in direct sunlight. It’s speedy calibration and simple operator interface makes this analyzer/controller a favorite with instrumentation departments in a wide variety of demanding industrial and municipal applications. Frequently used functions are accessed through an intuitive step-through menu which is printed directly on the front panel for ease of navigation. By pressing the MENU key the operator scrolls through the menu, illuminating an LED beside the selected item and displaying the stored value. Arrow keys are used to change the value. Seldom used or set-once adjustments, such as password activation are located on DIP switches on the back of the swing-out front panel.

The OMEGA® DOH-SD1 is innovative and easy to operate. What sets the DOH-SD1 apart from other dissolved oxygen meters is that it incorporates a real-time SD card data logger. The DOH-SD1 measures dissolved oxygen and has adjustments for altitude and salt. Download data from the SD card into an Excel spreadsheet. This allows the user to do further data or graphical analysis without special software. The DOH-SD1 has a wide variety of applications from water conditioning, aquariums, and fish hatcheries to food processing, educational and other laboratories.

The CDCN-91 series dual channel conductivity/resistivity controller is a two-channel input device equipped with three scalable 4 to 20 mA outputs and four programmable relays. A selector switch activates two open collector outputs in place of two of the relays for extraordinary output versatility. Dual input and advanced control capability, including percent rejection, difference and ratio calculations, together with the CDCE-91 series conductivity sensors listed below, form the perfect measurement and control system for water treatment applications and more. Two versions are available: one accepts AC line-voltage, the other low voltage DC for power. The four-button keypad arrangement with intuitive software design is user-friendly, and the NEMA-4X/IP65 integrity of the front panel can be extended to the entire enclosure by using the optional rear cover kit.

Pocket-sized, digital conductivity meter offers a variety of measuring ranges in one model. Ideal for quick field checks of water-based solutions, the CDH-7X combines the measuring sensor and meter in one compact, pocket-size package. It measures ranges of 0 to 199 µS/cm, 0.0 to 1.99 mS/cm, 0.0 to 19.9 mS/cm, 0 to 199 ppm, 0.0 to 1.99 ppt and 0.0 to 19.9 ppt, with ATC 0 to 70°C (32 to 158°F).

The portable pH meter, PHH222 provides you with affordable, convenient solutions for basic pH or mV measurements. The OMEGA® PHH222 portable pH meter is easy to operate. Sensors are sold seperately.

The CDH45 is designed for low-concentration salinity measurement. Applications include water monitoring, seawater-prepared food solutions, breeding ponds, aquariums, and holding tanks.

The PHH-37 is a portable pH/mV and temperature meter with an easy-to-read digital display. Its temperature compensation feature enables it to read solutions at various temperatures. Temperature compensation can be adjusted manually, or it may occur automatically when the temperature sensor is immersed in a solution.

The FTB8000HW Series meters use the multi-jet principle, which has been an internationally accepted standard for many years. This type of meter is known for its wide range, simplicity, and accuracy in lowquality water. The impeller is centered in a ring of jets, with inlet jets on one level and outlet jets on another. A gear train drives the register totalizer dials. For pulse output, one of the dials is replaced by a gear, which turns a magnet that is detected by an encapsulated sensor threaded into the outside of the lens. Pulse rate is determined by the gear and the dial on which the gear is placed. Changing the pulse rate requires no special tools and can be done in the field.
Mechanically, all FTB8000HW meters are the same. The difference between the -PR, -PT, and standard models is in the sensor. -PR model meters use a solid state, longlasting Hall-effect sensor, which requires power. -PT model meters use a 2-wire reed switch. They provide a dry-contact closure and do not require power. Basic FTB8000HW meters totalize only and do not have an output. Never install water meters above or over areas where leakage would cause damage.

The CDH-37 portable conductivity meter provides excellent cost-effective performance in a field unit that measures ionized materials in solution. Housed in a rugged, high density polyethylene protective case, the CDH-37 includes a break-resistant probe with an internal thermistor for automatic temperature compensation. The unit features 5 conductivity ranges from 0-2 µmho/cm to 0-20,000 µmho/cm, to cover most water applications. To ensure versatility, the CDH-37 operates on 8 AA batteries and comes complete with probe and standard solutions.

The model CDH-280 conductivity meter is a basic, simple-to-operate instrument with four user-selectable ranges. It features automatic temperature compensation, a fixed 2%/°C temperature coefficient and a rugged splashproof enclosure. The CDH-280-KIT is a complete kit including a glass conductivity cell with an integral temperature sensor and cell constant of 1.0. The meter measures from a low range of 0 - 199.9 µS/cm up to 0 - 199.9 mS/cm. Both dip and flow cells with cell constants from 0.1 - 10 are compatible with the CDH-280. These sensors are available with glass, epoxy or polymer bodies.

The CDH-287 is a portable, multi-ranging conductivity meter with unsurpassed accuracy and reliability in the field. It also measures resistivity, total dissolved solids and practical salinity, making the CDH-287 the most versatile meter on the market. It comes with a glass, dip-style conductivity probe with an integral temperature sensor and cell constant of 1.0. This microprocessor-based conductivity meter features auto-ranging, programmable temperature coefficient and error diagnostics. Simply pressing the keypad switches from conductivity to TDS, resistivity or salinity units. A concentration mode allows operators to choose their own concentration units and create a specific calibration curve, by measuring up to four concentration standards and inputting the values. To increase range accuracy, cells are also available with constants of K=0.1 and K=10. Dip cells and flow cells are available in both glass and epoxy body styles.

The DOH-247-KIT is comprised of a compact splashproof dissolved oxygen meter and a polargraphic dissolved oxygen probe with automatic temperature compensation for field or laboratory applications. The unit measures dissolved oxygen in ppm and percent saturation, temperature in degrees Celsius and uncalibrated raw signals in µA. The µA signal allows one to monitor the condition of the probe membrane. This can help determine if the membrane has been clogged and needs to be replaced. The DOH-247 is microprocessor based allowing quick changes from mode to mode by simply pressing the keypad. In addition, the unit has a recorder output of ±200 mV corresponding to the mode of operation. The DOH-247 Kit is supplied with the dissolved oxygen probe, 2 replacement membranes, electrolyte fill solution, and a hard carrying case.

OMEGA’sPHH-253-KIT is ideal for quick and accurate measurement of pH and mV either in the field or in the laboratory. Supplied as a compact and portable kit, the PHH-253-KIT is perfect for transporting to on-site locations while keeping the equipment organized and ready for future use. The meter provides ±0.02 pH accuracy of measurement with 0.01 pH and 1 mV resolution. pH calibration is manual using one or two points. The kit comes complete with meter, epoxy-bodied general purpose pH electrode, temperature probe, carrying case and user’s manual.

The PHH-103 is a portable, microprocessor-based temperature meter. Its rugged, splashproof housing makes it ideal for field applications. On its large, 2-line LCD, the PHH-103 can display pH/mV and temperature readings simultaneously. Up to 5 buffer values can be stored in memory, allowing for fast, accurate calibration. Calibration (1-point, 2-point, etc.) is user adjustable. The display will indicate the percentage of slope (“PTS”) to show the status of the electrode after slope calibration. The PHH-103 also features a low-battery indicator and will automatically shut off after 10 minutes of non-use. Easy mounting is accomplished with the large magnet on the back of the meter or by mounting hole on top of the meter. A suction cup mounting hook is supplied with the meter.

The PHH-257-KIT is designed for field and laboratory measurement of pH. Supplied as a complete kit, the PHH-257-KIT is perfect for transporting to remote locations, keeping the equipment organized and ready for future measurements. Standard features include automatic buffer recognition and calibration, diagnostic error code display to indicate defective electrodes or incorrect buffer solution. The meter has a very precise 0.1 mV resolution, ideal for ion selective measurements. The PHH-257-KIT comes complete with meter, epoxy-bodied general purpose pH electrode, temperature probe, carrying case and user’s manual.

The CDH-720 and TDS-720 Series water-resistant conductivity/TDS meters are OMEGA’s reply to requests of accurate, low maintenance process monitoring equipment at affordable costs. Four different models are available to cover all applications. Each meter is supplied with a direct 2 pin probe and 2 meter (6.6') cable with a 1 /2 " thread for flow-thru mounting. The probe has a temperature sensor that will automatically compensate against temperature changes from 5 to 50°C (41 to 122°F) with a ß of 2% per degree. In the measurement mode, a red LED will warn the user in the event the reading is outside of the alarm interval. A front trimmer allows manual calibration at 1 point. The electrical circuitry is tightly sealed inside the water-resistant enclosure. In addition, thanks to the molded hook, the CDH-720 and TDS-720 Series be easily and quickly installed anywhere. The specially designed casing is stable and will not roll off a table. The 12 VDC power supply makes it ideal for continuous monitoring over extended periods of time.

The CDH-5020 Series, PHH-5000 Series, and TDH-5031 are easy to use. The units feature a telescoping electrode which extends to 80 mm. The kits are supplied with a carrying case, battery, calibration solution, and complete instructions. The ORP-5041 does not come with screw driver and calibration solution. No adjustment potentiometer on the ORP-5041.

The CDH-720 and TDS-720 Series water-resistant conductivity/TDS meters are OMEGA’s reply to requests of accurate, low maintenance process monitoring equipment at affordable costs. Four different models are available to cover all applications. Each meter is supplied with a direct 2 pin probe and 2 meter (6.6') cable with a 1 /2 " thread for flow-thru mounting. The probe has a temperature sensor that will automatically compensate against temperature changes from 5 to 50°C (41 to 122°F) with a ß of 2% per degree. In the measurement mode, a red LED will warn the user in the event the reading is outside of the alarm interval. A front trimmer allows manual calibration at 1 point. The electrical circuitry is tightly sealed inside the water-resistant enclosure. In addition, thanks to the molded hook, the CDH-720 and TDS-720 Series be easily and quickly installed anywhere. The specially designed casing is stable and will not roll off a table. The 12 VDC power supply makes it ideal for continuous monitoring over extended periods of time.

With its built-in microprocessor, the PHB-600R precisely measures pH and mV in water solutions. This makes it suitable for laboratory, industrial, and manufacturing applications.

For versatility in the field or the laboratory, the PHH-60BMS/TDS and PHH80BMS/TDS feature the ability to make pH, conductivity and total dissolved solids measurements in one handheld instrument. The PHH-60B measures pH from 0 to 14 and conductivity from 0 to 19,990 ìmhos or ppm, and the PHH-80B extends the conductivity measuring range to 199,900 ìmhos or ppm. Recessed switches control all functions, and an easy access panel contains adjustments for pH calibration and slope, zero and span for conductivity. Features include automatic temperature compensation (ATC), detachable electrodes and integral benchtop stand.

The OMEGA® PHH-SD1 is innovative and easy to operate. What sets the PHH-SD1 apart from other pH/ORP meters is that it incorporates a real-time SD card data logger. The PHH-SD1 measures pH or mV (ORP) using standard electrodes with BNC connectors. Download data from the SD card directly into an Excel spreadsheet. This allows the user to do further data or graphical analysis without special software. The PHH-SD1 has a wide variety of applications from water conditioning, aquariums, beverage manufacturing and fish hatcheries to food processing, photography, paper and plating industries, educational and other laboratories.

A new look, rugged ABS casing with sturdy knobs, and a reference chart for pH and temperature on the front panel make PHB-209 an ideal meter for all users. The keypad has membrane keys for changing the mode and knobs for slope and offset calibration. The pH offset and slope are manually adjustable in order to display the calibration concept and the electrode characteristics to the students. Measurements can be performed for pH with manual temperature compensation as well as for REDOX (Reduction Oxidation Potential). The selected temperature is displayed to ensure better accuracy. The LCD displays the temperature comprehensively while manually compensating for its effects. Practicality, simplicity and comprehensive operating procedures in addition to an affordable price make this meter one of the most popular, basic pH meters available today. A rugged double-junction refillable pH electrode and 12VDC power supply are also included in the attractive pricing.