$25 - $50

*Please note we can only ship RKI products to customers within the United States

*Please note we can only ship RKI products to customers within the United States

pH51 pH Waterproof Tester, Unit comes with 2 Points Manual Calibration by Milwaukee

The Milwaukee Waterproof pH51 Tester is one of our most accurate low cost, rugged and reliable pH testers in the market featuring the ability to easily replace the probe providing for years of carefree use. It's simple 2 point manual calibration is simple-to-use. Ideal for use in aquariums, hydroponics, horticulture, pools and many other applications.

The Milwaukee pH51 pH tester offers:

ACCURACY

The Waterproof pH51 tester is accurate to ±0.1 pH and is easy to read.

With easy 2 point manual calibration, this pH tester is quickly calibrated to an accuracy of much more expensive meters. Simple design and rugged, it brings great value for any application. Why guess at your readings using litmus paper when you can have guaranteed accurate, digital LCD results.

LONG LIFE

The tester comes with a replaceable pH probe with a double junction probe designed for longer life.

FAST RESPONSE

The probe is double junction allowing quick, accurate pH readings and respose times.

WATERPROOF CONSTRUCTION

No more worries about dropping your tester while measuring. The pH51 is waterproof to IP65.

LIGHT WEIGHT

At just 3.5 ounces, the pH51 is easy to handle at up to half the weight of other testers.

EASE-OF-USE

A large LCD screen makes reading results easy while calibrating or reading your measurement. This takes the takes the guess work out of litmus paper.

DESIGN FEATURES

• Fast easy to read results with large digital LCD readout.
• Extreme pH accuracy to ±0.1 pH with a pH range (0.0 pH to 14.0 pH).
• Lightweight and portable.
• Easy measurement: just place the probe in the sample, gently stir, wait for the stability indication to show a stable reading and then freeze the reading.
• Simple manual one or two-point calibration.
• Gel-filled, double junction pH electrode for low maintenance and high performance.
• Fully waterproof to IP65.
• Over 1500 hours of continuous battery life (batteries included).
• Replaceable pH electrode.

CARE AND USE

All pH sensors have a limited life and response time gets longer with age. Properly maintaining your pH pen tester will give you fast, accurate results for longer. So, be sure to order the Milwaukee pH Maitenance Kit code PH-Main at checkout time! This will be needed to help clean and condition the pH electrode before use!

Here are our top four tips.
1. Always store with the cap full of buffer or storage solution MA9015 not water.
2. Clean your Tester regularly by soaking in cleaning solution MA9016.
3. Calibrate after cleaning and/or storage before testing to adjust for changes in the pH sensor.
4. Gently stir the Tester in the sample for a faster result.

CU6750-Q Copper Sulfate Solution, 2% w/v, 1L by AquaPhoenix

• APHA for Nitrogen (Nitrate), 4500-E

Specifications

• Packaging Type: Poly
• Size: 1.00 L

*Please note we can only ship RKI products to customers within the United States

*Please note we can only ship RKI products to customers within the United States

*Please note we can only ship RKI products to customers within the United States

P250BR Non-Switchable Passive Oscilloscope Probe, 250MHz, x 10 with Readout, 1.2M Cable Length by Test Products International

Selecting the correct oscilloscope probe ensures accuracy and can improve the performance of your test instrument. TPI offers a wide range of high quality oscilloscope probes designed to meet the most demanding applications.

The IP series monolithic probes have switchable attenuation and are available in 60 and 250MHz. These probes are ideal for technicians that need a basic oscilloscope probe.

The slimline design P and SP series probes are available in fixed or switchable attenuation. These series of probes are perfect for the technician needing additional features such as replaceable cable and interchangeable probe tip. The compensation adjustment for these probes is located in the BNC to eliminate noise pickup.

TPI also offers three models of high voltage differential probes all with high common mode rejection, wide bandwidth, and fast rise times. Differential probes enable the viewing of signals not referenced to earth ground and provide better performance than a matched pair of single ended oscilloscope probes when measuring these types of signals.

Several important factors must be taken into account when selecting the proper probe.

• The probe should have sufficient bandwidth and rise time for the test instrument and application. Choose a probe with at least an equal bandwidth as the scope it will be used with. For best performance a probe with twice the bandwidth as the scope should be selected
• For oscilloscope probes, the input capacitance of your oscilloscope should be within the compensation range specification of the probe. In addition, if your oscilloscope has readout function, select a probe with this capability
• For differential probes, make sure the maximum differential voltage is adequate for your application and the common mode rejection specification meets the requirements of the tests being performed.

Features

• Attenuation: Ratio of the output signal to the input signal. Attenuation should remain constant decreasing by 3dB only as the frequency increases to the maximum bandwidth.
• Bandwidth: The maximum -3dB frequency that can be expected.
• Cable Length: Length of the cable from the end of the probe to the end of the connector. It is important to use a probe with just enough cable length for your needs. Long cables increase the capacitance and propagation delay of the probe.
• Compensation Range: The range a probe can be compensated to match the input capacitance of the test equipment it is being used with.
• IEC 1010: Probes with the IEC 1010 category rating have been designed for safety.
• Input Impedance: The total resistance and capacitance as measured at the tip of the probe. This specification is used to define the loading effect of a probe. At frequencies under 1MHz the input resistance of the probe will have the most influence. At higher frequencies the input capacitance will have the most influence.
• Max Input Voltage: The maximum voltage the probe can be used at.
• Max Differential Voltage: The maximum differential voltage that can be measured by a differential probe
• Readout: Probes with this capability are compatible with readout function oscilloscopes that automatically detect and display the attenuation factor of the probe.
• Rise Time: The time required for the leading edge of a pulse to rise from 10% to 90% of its final value.
• CMRR: Common Mode Rejection Ratio. A measure of a differential probes ability to reject any signals common to both test points in a differential measurement

Applications

• Use TPI Probes with Bench Top, Portable, Analog, and Oscilloscopes
• Logic signal and waveform tests
• Measure voice / data signals
• Analyze power quality
• Test motor control circuits

Markets

• Electronic
• Communication
• Commercial
• Industrial

368 Close-Focus, Pocket Size Infrared Thermometer by Test Products International

Thoroughly testing and diagnosing high efficiency HVACR systems or large surface areas can be labor intensive and expensive. Using the appropriate non-contact thermometer can reduce man hours and help insure system performance more easily, accurately and affordably.

Features:

• Close focus 1/8" ~ 1.5"
• Data logging capability: 16,000 readings with sampling interval from 1 second upto 24 hours.
• Auto Resolution (0.1° / 1°)
• Selectable Fahrenheit of Centigrade temperature range: 7° to 248°F or -22° to 120°C
• Compact - Easily fits in your pocket
• Auto Data Hold: Point the unit at the surface to be measured then press and hold down the ON/SET button. Temperature will be displayed in less than 2 seconds and held on the display for 10 seconds.
• Min/Max functions displays the minimum or maximum temperature of 8 samplings in 0.5 seconds.
• AUTO sets the 368 into scan mode to continuously scan surface temperatures in real time. Automatically powers off after 60 minutes.
• NOTE: Close-focus IR thermometers should be held a distance .5 to 2 inches from surface to be measured to obtain an accurate reading (spot size 0.35")

HVACR

• Compressor heads Vents
• Leaks around cooler or freezer doors
• Leaks around windows
• Steam traps
• Registers

Food

• Surface temperatures
• Holding cabinets
• Serving temperatures
• Storage temperatures

Electrical

• Cables
• Circuit breakers
• Connections
• Machinery
• Motors & Transformers

*Please note we can only ship RKI products to customers within the United States

90225-39 Traceable® Triple-Display Digital Clock/Timer with Calibration by Digi-Sense

Triple-display clock/timer features three channels, a count up stopwatch, 500-lap memory, and a clock. All three channels can be operated simultaneously. Memories of all channels can be recalled together. Stopwatch counts up to 24 hours with 0.01-second resolution. Countdown range is 20 hours; countdown and clock functions have a 1-second resolution. Timer counts up to show time elapsed since the alarm.

Traceable® products are calibrated to NIST-traceable standards and ready to use as soon as you receive it. Each product goes through an intense vetting process before it can carry the Traceable name, and it includes NIST-traceable certification. This means that a 17025-accredited calibration test lab has confirmed that the product meets or exceeds all stated specifications, saving you both time and money by not having to calibrate separately.

NIST-traceable calibration also helps you meet quality standards and regulatory compliance for ISO, FDA, cGMP, VFC, CAP, CLIA and Joint Commission requirements.

• Accurate, reliable measurements with included NIST-traceable calibration
• Get timing faster-recall all channels' settings instantly
• Use as a countdown timer, count up stopwatch, or clock
• Count up to 24 hours, count down to 20 hours
• Displays time elapsed since alarm

Includes

NIST-traceable calibration certificate with data, magnetic clip, and one AAA battery.