High impedance voltage to voltage converter amplifier with unity gain. Ideal for pH, ORP, ISE interface. Simply connect them between your electrode and your voltmeter, oscilloscope and or analog to digital converter interface (ADC).

High impedance pH checker tester, transducer board. Ideal for pH logger or meter reading accuracy evaluation. The OEM CHECKER-PH3 simulator board helps determine if the reading problem are related to the pH electrode, pH buffer or to the ph transducer/transmitter. It simulates pH in a mV value of standard calibration buffers 4, 7 or 10 pH units in 0.01 pH accuracy. The simulator operates on a stand 9 volt battery and has a optional BNC connector attached to the output signal.

The CHECKER-PH3 Calibration checker board simulates values for pH 4.00, pH 7.00 & pH 10.00, professionally with high accuracy. Where, the CHECKER-PH3E simulates values for pH 5.00, pH 7.00& pH 9.00

High impedance voltage to 4 to 20 mA converter transducer board. Ideal for pH, ORP, ISE interface to remote applications via 4 to 20 mA. Simply connect them between your electrode and your PLC, and or analog to digital converter interface (ADC).

The industrial pH, ORP or ISE to 4-20mA transmitter board is also available in a 1-5V and 2-10V output configuration. 

Aqua display with high impedance inputs. The industrial sequential computerized Temperature, pH, ORP aqua display and transmitter board. Ideal for displaying temperature pH, ORP and transmits the information wireless or with wires to remote applications such as PLC, Personal computer, data-loggers or water controllers.

The industrial sequential computerized Temperature, pH, ORP aqua display and transmitter board

pH, ORP, ISE Interface-Boards Transducers  (OEM). Ideal for industrial and field pH ORP and ISE measurements. Simply connect your electrodes, and the transducer's outputs to your PLC or measurement's device. Power the board and start reading. Where; Model A power of 12V or 24V Dc or AC and Model B power of custom voltgae supply by the user. i.e. 3.0V, 3.3V, 5.0V, 6.0V, 8.0V or 9.0V DC.

Model A              Model B

The pH, ORP or ISE transducer board is designed to perform pH, ORP or Ion Selective Electrode (ISE) unity-gain signal amplification and resistance matching.

This unique transducer is ideal for multi-channels (pH, ORP or ISE) readings via PLC, Analog to Digital Converter (ADC) devices etc.

ELECTRODER-GPH (Epoxy body) Side views

Our pH, ORP and ISE (electrodes, sensors, cups and probes) are light-weight and durable, suitable for a wide range of applications. We will customize them for you. Let us know the style you are looking for, and we will produce to your specifications. Most TC's available.

   Model A               Model B

The pH, ORP or ISE transducer board is designed to perform pH, ORP or Ion Selective Electrode (ISE) unity-gain signal amplification and resistance matching with additional temperature reading functions, for pH Temperature Compensation (TC).

   Model A                         Model B

The dual channel; pH, ORP or ISE transducer board is designed to perform 2 Channels pH, ORP and Ion Selective Electrode (ISE) unity-gain signal amplification and resistance matching with additional temperature reading functions, for pH reading Temperature Compensation (TC).

pH meter  interface converter board (OEM). Ideal for industrial and field pH measurements. Simply connect electrode. Adjust temperature (0-80C), reference voltage (at pH 7.00)  and slope (pH 4.00 and 10.01) and read the ph from the front mounted LCD display.

ELECTRODER-GPH (Epoxy body) Side views

Our pH, ORP and ISE (electrodes, sensors, cups and probes) are light-weight and durable, suitable for a wide range of applications. We will customize them for you. Let us know the style you are looking for, and we will produce to your specifications. Most TC's available.

Conductivity interface converter board. Ideal for conductivity cell K=1 with 10K-Ohms thermistor interface. Simply connect them between your electrode cell and your voltmeter, oscilloscope and or analog to digital converter interface (ADC). Many models to choose from. Power via external power or or 9V battery.

 OEM

Conductivity meter interface converter board (OEM) Ideal for industrial conductivity measurements. Simply connect cell K=1 with 10K Ohms thermistor (via mini din 6 connector). Adjust Zero and Calibration trimmers and read the amount of uS/cm from the front mounted LCD display.

ELECTRODER-AC2 (ABS body) Side views

Our conductivity cells (cup & electrodes) Are light-weight and durable, suitable for a wide range of applications. We will customize them for you. Let us know the style you are looking for, and we will produce to your specifications. K=0.1, 1 or 10, most TC's available.

Frequency generator tester checker board is designed to generate the following frequencies: 1Hz, 10Hz, 100Hz, or 10Hz, 100Hz, 1KHz. However, give us a call if you'd like your interface board to be modified for other frequencies.

CHECKER-FQ3X: 1, 10 and 100Hz or 10, 100 and 1000Hz frequency checker, tester, simulator

Frequency to voltage converter board (tachometer) Ideal for converting motor PRM to voltage. For building flow meter (liquid and air.)  Simply connect it between your frequency generator, pulse source i.e. hall effect, light pulse -- and your voltmeter, oscilloscope and/or analog to digital converter interface (ADC).

With terminal blocks

Voltage/Current to voltage converter scaling board. Ideal for converting sensor voltage range to another range to fit your controller, PLC or micro-controller needs. Simply connect it between your sensor-- and your controller, PLC and it will linearly scale it. Precise calibration with simple SPAN and ZERO adjustments.

Signal "Manual-Off-Automatic"  interface board with unique per channel outputs: signal/override voltage and switch status. Ideally for remote actuator or dumper adjustment. Allows the engineer to checkout and manual override of actuators, dumpers and linkage operation to the controller. Additionally, provides temporary override or cut the signal if the controller malfunctions.

Up to 4 Signals Buffer/Splitter  interface board with unique buffered input/inputs to multiple outputs (splitter) selectable jumpers.

Slotted Infra Red (IR) Detector Interface Board Transducer is the simple non-contact solution for detecting/checking pin location. Ideal for zero positioning and motor RPM measurements.

Reflective Infra Red (IR) Line Detector Interface Board Transducer is the simple non-contact solution for detecting/checking liquid level in a clear pipe.

"Air-in-line' interface board is the simple non-contact solution for detecting/checking air bobbles in a clear pipe. The board also includes analog switch interface that eliminates the bouncing problem of your switch... no more false switch readings from your I/O pins.

This unique OEM non-contact fluid interface board is design to detect air bobble in blood, plasma and intravenous fluids or any other applications that require feedback and verification of the presence of liquid and/or air bobble in the liquid flowing throw clear tubing of 0.25” OD or less.

IR sensor Front and Side (with clear pipe) views

Current simulator tester 4-20mA. Ideal for test driving actuators and remote sensing, or source milliamps.

The CHECKER-MA3X, 24V AC or DC operated electronic 4-20 mA SIMULATOR board that provides a accurate quick and easy simulated output of 4mA, 12mA and 20mA for use in checking testing and calibrating instruments with 4-20mA current input. Also, it is the ideal device to set up indicating ranges on panel meters and controllers. Calibrate recorders, digital indicators, stroke valves or any other instruments that get their input from a 4 to 20 mA loop. Easily set three value to within 0.01 mA via front mounted rotary switch

The CHECKER-MA3X provide industrial long distance carry voltage 12-20VDc with three preset current 4mA, 12mA and 20 mA allows one to test your transducer for HVAC (Heating, Ventilation and Air Conditioning), Electro-hydraulic and Servo Electronics; Actuator, Dampers, Bleed Pilot Valve, Globe valves, Butterfly valves and Plug valves.  This board offers effective, state-of-the-art, reliable linear current setting and testing of HVAC 4-20 mA dampers and valves. 

CHECKER-MA3X: 4-20mA Current tester, simulator: Off, 4mA, 12mA or 20mA output, up to 4 miles!

Voltage to current transducer.  Convert 0/4.8 to 24V or 0/2 to 10V or 0/1 to5V DC (many voltage configurations are available) to 0/4-20mA. ideal for driving actuators and remote sensing.

4-20 mA voltage to current Transducer for HVAC (Heating, Ventilation and Air Conditioning), Electro-hydraulic and Servo Electronics; Actuator, Dampers, Bleed Pilot Valve, Globe valves, Butterfly valves and Plug valves.  This board offers effective, state-of-the-art, reliable linear control of HVAC 4-20 mA dampers and valves. 

        Model A with 6 pins

Model B with 5 terminal block

Convert 1-5V, 2-10V or 4.8-24V DC to Current 4-20mA

Model C with 6 terminal block

Convert 66mV-1.2V, 400mV-2V, 1-5V, 2-10V or 4.8-24V DC to Current 4-20mA

Industrial Voltage signals (0-5V, 0-10V or 0-24V DC) to Current (4-20mA) converter  interface board with both Zero and Span adjustments.

Control Signal (Proportional) 4-20 mA. Voltage to current Transducer for HVAC (Heating, Ventilation and Air Conditioning), Electro-hydraulic and Servo Electronics; Actuator, Dampers, Bleed Pilot Valve, Globe valves, Butterfly valves and Plug valves.  The boards offers effective, state-of-the-art, reliable linear control of HVAC 4-20 mA dampers and valves.

     Model A                             Model B

Convert 0-5V, 0-10V or 0-24V DC to Current 4-20mA

Industrial Current (4-20mA) to Voltage converter  interface board with unique dual output ranges selection via selectable jumpers.

Input industrial standards current: 4-20mA or 1-5mA or 10-50mA or 20-100mA

Outputs industrial standards voltages:

Model A, 0 to 10V, 0 to -10V, 10 to -10V, -10 to 10V, -5V to 5V, 5V to -5V

Model B, 0 to 5V, 0 to -5V, 5 to -5V, -5 to 5V, -2.5V to -2.5V, 2.5V to -2.5V, 0 to 10V, 0 to -10V...

Convert 4-20mA to Voltage 0-5V, 0-10V, +/-2.5V, +/-5V, +/-10V...

Solenoid and Relay Power-on Delay Interface Boards. Delay motor pump or actuator power on operation.

Relay power on delay module

Solenoid power on delay module

Multi-Channel Isolation Interface Boards. Isolate your relay, pump or actuator from the PLC, controller or microprocessor. Two version are available: Detect high voltage (i.e. 150V) or low voltage signals (i.e. 5V).

1 channel Hi/Low isolation board

 2 channels Hi/Low isolation board

3 channels Hi/Low isolation board

4 channels Hi/Low isolation board

Multi-Channel Isolation Interface Boards. 24V AC or DC input self powered. Isolate your relay, pump or actuator from the PLC, controller or microprocessor.

2 channels isolation board

4 channels isolation board

6 channels isolation board

8 channels isolation board

Relay board. Switch relay directly from your PLC, micro-controller or other electronic board. Choose from signal, dual, quad or pilot relay board.

Quad relay board with opto isolated input signals. Switch relay directly from your PLC, micro-controller or other electronic board. Choose from medium (10A) or High (30) rated opto isolated relays boards.

Medium current (10A relays) opto-isolated signal quad relay board

Model A                                         Model B

High current (30A relays) opto-isolated signal quad relay board

Self Power quad relay board.

Adjustable voltage relay board controller. Turn your relay on at certain voltage (0-30V, 0-10V or 0-5) or certain current (4-20mA) and keep it "on" until you reach certain tolerance (trip - out) cut-out voltage. the best choice for your HVAC needs.

Adjustable Voltage or Current Settings Relay Board Controller with Delay. Turn your relay on (cut-in) after pre-set delay at specific pre-set voltage or current, turn it off (cut-out) at certain pre-set voltage or current. The best choice for your HVAC Field-Pump, Solar-panel, Battery-charges and Auto-generator needs.

Adjustable Voltage or Current Settings 40A-Relay Board Controller with Delay. Turn 40A rated relay on (cut-in) after pre-set delay at specific pre-set voltage or current, turn it off (cut-out) at certain pre-set voltage or current. The best choice for your HVAC Field-Pump, Solar-panel, Battery-charges and Auto-generator needs.

Adjustable Voltage or Current Settings Relay Board Controller with dual Delay-cycle. Turn your relay on (cut-in) after pre-set delay at specific pre-set voltage or current, turn it off (cut-out) at certain pre-set voltage or current. While on, the relay will continue to cycle; set on and off at pre-set timers. The best choice for fish feeder, fish farms and hydroponic applications.

Adjustable Water Sensitive Relay Board Controller. Build your own industrial 24V DC water leaks and/or humidity detections, to control shut-off valve or alarm. The best choice for your HVAC needs.

Three Relay Switching based on one Input Signal Controller board. Build your own industrial HVAC related functions control board.

Model A                                    Model B

   low current relays                     High current Relays

Isolation AC Power Supply Board. Perfect isolate transformers board,110/220AC to 24VAC, CT 2 * 12VAC, or any other voltages. AC voltage source to all your HVAC, PLC, and interface boards and transducer power needs.

Side View

Top View

Diode Bridge. Full  bridge (diode rectifier), Low and High current configurations, for both positive output (+V), and/or positives and negative (+/-V) outputs utilizing center trace (CT) transformer.  Yes "cage" type Terminal block by Molex Inc for easy connection. Perfect to convert AC voltage source to DC, both +/-V and +V reference to Com (ground)

Model A                          Model B

High current (up to 3A)        Low current (up to 1A)

Industrial power supply board. Positive regulative 24 Volts DC and +/- 15 Volts DC

   Model A                 Model B

   Model A                 Model B

Custom and Adjustable Power supply Module. 1.25V to 24V Voltage regulator board, the perfect voltage source to all your HVAC, stand alone sensors and 4 to 20mA transmitters needs. Replace any 78XX regulators.

Dual outputs power supply Board. DC-adjustable (Adj.) reference voltage and rail voltage.

Battery voltage source - simulators both for 9V and 12V. Stop paying for batteries again and again...

Adjustable regulated output voltage power supply module. The board can regulated output voltage up to twenty-four volt DC (1.25-24VDC). With higher current option (right). This unique power supply board is perfect voltage source to all your HVAC controls ad interface boards power needs. OEM, Also available with on board heat-sink (many heat-sink configuration are available).

Available with many heat sink configuration

Available with many heat sink and isolated power transformer configurations

Adjustable regulated dual output voltage power supply module, with both positive and negative adjustable regulated outputs voltage (1.25 to 24VDC & -1.25 to -24VDC). With higher current option (right).

Up to 4 adjustable output voltage power supply module via push button switch. Each output voltage is separately selectable and adjusts between 1.5V to 24V DC. Additionally, each selectable output voltage has its own bright LED output indication. This unique power supply board is perfect voltage source to all your Lab testing needs.

Power over Ethernet (PoE), for wireless and remote applications.

PoE Injector                         OEM Remote side, tap power supply

Thermometers and temperature measurement related board and sensors.

High accuracy temperature interface board, utilizing Industrial standard temperature sensor (transducer) AD590. Convert remote temperature to quantified temperature measurement represented by corresponding voltage value. Choose from degrees C or F output (Model A & B)

Use Steinhart-Hart equation to convert any thermistor resistance into quantified temperature measurement with high accuracy.

SENSER-GTM10K (SS-316 body) Side views

Our temperature (panels electrodes, sensors, cups and probes) are light-weight and durable, suitable for a wide range of applications. We will customize them for you. Let us know the style you are looking for, and we will produce to your specifications. Most connectors and temperature compensations (TC's) are available.

Use Steinhart-Hart equation to convert 10K Ohms NTP curve 3 thermistor resistance into quantified temperature measurement with high accuracy. Automatically present the readings on a bright two digit seven segments display.

Choose from degrees C or F output. Optional with or without decimal point. Ideal for inline temperature measurements.

Use industrial standard temperature sensor measurements, temperature to voltage transducer (LM34 or LM35) and automatically displays it on a bright two digit seven segments display.

Choose from degrees C or F output. Optional with or without decimal point. Ideal for room monitoring temperature measurements.

Voltage measurement related board and sensors.

High accuracy 2 seven segments display voltage interface board, utilizing industrial standard resistors-network voltage-divider to read and convert voltage readings. Displays the voltage on a bright two digit seven segments display. This unique board is ideal for battery monitoring. It is simultaneously powered of and  reads the same battery, or battery networks (self power display).

Electric automotive related board and sensors.

The boards combination are designed to perform automotive switch and sensors signaling to LED signal conversion.

Operational Amplifier interface board. Simply chain them together and build your application, prototype or product. Save time and money. 

Operational Amplifiers OP-Amps are the most used analog active circuit component. While Op-Amps are widely available from different manufacturers, and are fairly inexpensive, selection of the right Op-Amp for the job is still important. Use our Op-Amp boards as a building block (black box) to build your applications. Let us build them with your favorite components and set your desired gain.

Display related board and meter. Use our interface board and display to construct your own meter:

pH-meter (pH, ppm), ORP-meter (uV, mV, V, ppm), ISE-meter (uV, mV, V, ppm)

Conductivity meter (uS, mS, S, ppm), TDS-meter (ppm), Humidity meter  (%RH)

Temperature meter  (F, C, K), Tachometer (RPM), Flow-meter (RPM), Voltmeter (uV, mV, V, ppm), Battery monitoring meter (Batt icon), Automatic temperature compensation (ATC), Dissolve Oxygen (DO)-meter, Ohm-meter, High impedance voltmeter (uV, mV, V), Light-meter, Location indicator meter (1-99), and more.

Resistive Humidity or Water Sensors board.

Resistive Liquid Level Sensors board.

Industrial standard EUSB. Choose from a variety of Interface boards and/or  kits:  

Measuring and logging pH, ORP and ISE has never been easier, Shown above mounted to our combo-pH-Temperature electrode.

Choose from our large variety of EUSB kits/boards (blue buttons below)

Multi-channels 12-bits ADC (A/D), both single ended and differential. EEPROM, I2C, I/Os... Measure pH with ATC or ISE or ORP... data acquisition... Measure voltage, temperature... Control timers, counters and more-- directly from your PC via EID-EUSB connection kits. 

Yep, Basic FREE SOFTWARE. Simple to use. Control EUSB-kits directly from your personal computer (PC) via windows** environment. Our philosophy is that "NO KID or SCIENTIST WILL BE LEFT BEHIND!"

Too many features to list. Log to file, and simultaneously open it from Excel **, to generate graph or report... or just share the logged file and read it via the web from anywhere.

OEM software is available. Let your customer control the world directly from their PC (Dr. Ron Erlich).

** Windows and Excel are trade marks of Microsoft Corp.

Attention developer, BASIC/C/C++ sample code and DLL is available-- (YES FREE!) write your own  GUI for your USB application.

EUSB OEM USB INTERFACE BOARDS and KITS

Choose from our variety of our Enhance USB line of EUSB boards (buttons below):

1. USB - I/Os LEDs electronic kits via EUSB:

3 I/O Via USB                      6 I/O Via USB                       9 I/O Via USB

6 In. + 32 Out. Via USB      6 In. + 24 Out. Via USB     9 In. + 16 Out. Via USB

2. USB - EEPROM kit via EUSB:

Control I2C E-EPROM Via USB

3. USB - ICs kits via EUSB:

 MAX1236 4/2 Channels SE/DIFF 12-Bits Analog to Digital Converter (ADC) Via USB

4. USB - Bus protocols kits via EUSB:

I2C  Via USB                      SPI Via USB

5. USB - Analog to digital converter (ADC) kits, both single ended and differential via EUSB:

    1-Channel SE ADC Via USB     2-Channels SE ADC Via USB   4-Channels SE ADC Via USB

    1-Channel Diff. ADC Via USB   2-Channels Diff. ADC Via USB

6. USB kits - Measure pH via EUSB:

    ISE, ORP, or pH with Temperatures Compensation (TC) reading Via USB

7. USB - Hi Impedance interface (pH, ORP & ISE) kits via EUSB:

8. USB - Timers & Counters kits via EUSB:

  3-Timers Via USB               3-Counters Via USB

9. USB - Temperature (IC and Thermistors) kits via EUSB:

  1-IC Temperature Via USB   4-IC-Temperatures Via USB

    4-Thermistors Temperatures Via USB

10. USB - Displays (1-4 lines 8-40 CHR) kits via EUSB:

    LCD Via USB

11. Monitor e-mail and/or room temperature and/or any sensor you deem appropriate via your USB port:

4 Email Alert via EUSB (PC USB port)

                       Model A       Model B With temperature Reading

View if you got new email, while your father or Mother is on the computer.

 Educational kit for the all family.

Yes, free software...

12. Free Enhance EID's USB (EUSB) kit line software, Code DLL, and software sample for our EUSB kits.

DIN rail mounting clips (kit) Designed for mounting enclosures to DIN rails

DIN Clip shown on the left mounted to our EID-1591ATBU blue polycarbonate (chemicals resistance type material) enclosure and clipped to a panel mounted standard 35mm DIN rail. 

Our DIN Clip is mounted via two screws per clip.

Shown above mounted on our OEM pH/ORP/ISE high-impedance input transducer 

Cable/Cord/Wire-Glen Black nylon (kit) designed for, liquid-tight cord-grip (wires grip). Used where cable is entering or leaving an enclosure

• Accepts a wide range of cable diameters due to large opening and highly flexible strain relief elements, together with a TPE sealing ring

• The strain relief elements tighten in a circular sequence on the sealing ring to give outstanding strain relief without twisting or damaging the cable

• Suitable for NEMA type 4 applications - Protection to IP68

• UL94-V2 flammability rating

• UL, CSA & VDE listed

ALL ABOVE OEM INTERFACE BOARD ARE PROUDLY DESIGNED, FABRICATED and MADE IN THE U.S.A.