$100 - $150

600-0071-020 LEL Methane, 20% (Balance Air), 34L Steel Cylinder by RAE Systems

Standard single-gas and multi-gas mixtures for monitor calibration

• Sizes range from 11 liters to 103 liters
• Convenient multi-gas mixtures
• Choose between demand-flow and constant-flow regulators

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

Part Number: GAPA1MC5EU

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

21004 Calibration Std - 1000μS Conductivity / 100ppbPTSA - 500mL Bottle by AquaPhoenix

PTSA (1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt) is used in cooling tower and reverse osmosis applications as a tracer for inhibitor concentration monitoring, known as fluorescence tracing.

Pyxis PTSA standards are manufactured under strict lab environment and quality control processes to ensure accuracy for calibration. It is ideal for checking and calibrating portable and/or inline PTSA fluorometers.

The innovative PTSA-1010 combines PTSA standard with conductivity standard that will calibrate both parameters with Pyxis SP-400 and SP-700 meters.

Shelf life is 6 months.

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

WD-00651-80 Traceable® pH Standard Buffer with Calibration, Blue, pH 10; 4 L by Oakton

Oakton pH buffers are compared against, and are traceable to, NIST Standard Reference Materials. Each bottle includes a NIST-traceable calibration report stating accuracy at 257°C to ±0.010 pH. Color-coded and colorless buffers are available in 500-mL, 1-L, or 4-L packaging sizes. Additional values and packaging sizes are available. Store at room temperature.

Certified Reference Materials (CRM) meet federal, state, and or local agencies' strictest mandates, and deliver exact calibration results for any pH meter. A2LA ISO/IEC 17025:2005 (1750.01) (Calibration Laboratory) and ISO Guide 34 (Certified Reference Material Producer) provide highest achievable levels of product production, documentation, and accuracy. Additional accreditations include ISO 31 (content) and ISO 35 (statistical analysis). ISO 9001 ensures that world-class product standards for Materials are always met.

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.

NIST-traceable reference materials include a calibration report from an ISO 17034 and ISO 17025 accredited laboratory

• Choose from clear or color-coded standards from common calibration points
• 4 L (128 fl.oz.) capacity
• Calibrate at pH 10
• Easily identify blue color-coded formula

PH60 Premium pH Tester by Apera

The Apera Instruments PH60 Tester is the new generation premium pH tester for all kinds of regular aqueous solution's testing, such as hydroponics, aquaculture, pools & spas, water treatment, cooling towers, etc. Features ACCURATE, QUICK & RELIABLE measurements. Besides the regular glass bulb probe, there are 3 other types of replaceable probes for your choice to meet your specific testing needs.

Up to 3 points (4.00, 7.00, 10.01) of Auto Calibration with auto buffer recognition and 0 to 50°C Auto Temperature Compensation (ATC), ±0.01 pH, 0.5°C accuracy with -2.00 to 16.00 pH measuring range, auto recognition and reminders of stable values improves consistency, saving you the trouble of guessing when to manually hold measurement (auto hold function available).

Equipped with a large clear LCD with 3 backlit color (blue for measuring mode, green for calibration mode, red for heads-up), it supports dual display of temp./pH value and indications of completed calibrations (where L/M/H indicate 3 points of calibrations) and stable readings (with a smiley face).

Unique High/Low Value Heads-Up function: the screen will turn red if measurement is higher/lower than a preset value, instantly reminding you of any results that need your attention.

Great value---Comes with a complete kit of premixed calibration solutions (4.00 and 7.00), soaking solutions (3M KCL), calibration bottles, AAA batteries, and a lanyard all in a portable carrying case.

Easy menu setting, customizing your tester's functions according to your needs. Smart self-diagnosis, warning of out-of-range measurement and incorrect calibrations. IP67 waterproof and dustproof, floating on water so you don't have to worry if it falls into water by accident. 2000 hours' continuous operation (without backlit) powered by AAA batteries (with low power warning and auto power off in 8 min if no operation).

The meter is CE certified and comes with a 2-YEAR Warranty (6 months for the probe). The company designs and manufactures scientific analytical instruments like meters and sensors for pH, conductivity, turbidity, and dissolved oxygen for over 25 years, and meets ISO 9001:2008 Standards.

• Easy Auto Calibration with buffer recognition; Auto Temp. Compensation (ATC) ensures accuracy in variant temperatures (0-50.0°C); Accuracy: ±0.01 pH, 0.5°C, Range: -2.00 to 16.00 pH
• 3 types of replaceable probes for your choice, aiming at pH measurements for different substances.
• AUTO recognition of stable values (optional Auto HOLD function available) improves consistency so you don t have to guess when to manually hold measurement
• LARGE CLEAR LCD with 3 backlit color (indicating 3 different modes), dual display of temp./pH, and REMINDERS of completed calibrations and stable readings
• COMPLETE KIT with READY-TO-USE calibration solutions, calibration bottles, storage solutions, AAA batteries, and a lanyard all in a premium portable carrying case

*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

Measuring Range: -60 to +400 °C