Best Apera Instruments in 2026

Reported values are accurate to +/- 0.01 pH at 25 °C and are traceable to NIST Standard Reference Materials (SRMs).

Produced in an ISO 9001:2015 certified facility using high-purity reagents, deionized water and certified analytical balances in a temperature controlled environment.

color-coded for quick identification.

Swiss spear sensor with Long-life reference system (Replaceable), made for cheese, sushi rice, meat, fruit, milk, yogurt, sauce, and other solid/semi-solid's pH measurement (also works great for general water solutions)

Easy auto. calibration with auto. temperature compensation (ATC)

Unique high/low value alarm function, instantly reminding you of any results that need your attention with a red backlight

NOTE: A few drops of water are added to the electrode cap before the product leaves the factory. This is to maintain the sensitivity of the electrode. Therefore, when you use it for the first time, it is normal to find water droplets in the electrode cap

Accuracy: 0.01 pH; range: -2.00 to 16.00 pH, 32 to 122˚F (0 to 50˚C); Auto. Power-Off: 8 minutes without operation

Easy 1-3 points auto. calibration, recognizes 5 types of solutions (1.68, 4.00, 7.00, 10.01, 12.46); Auto Temp. Compensation (ATC) ensures accuracy in various temperatures (32-122˚F)

Reported values are accurate to +/- 0.01 pH at 25 °C and are traceable to NIST Standard Reference Materials (SRMs).

Produced in an ISO 9001:2015 certified facility using high-purity reagents, deionized water and certified analytical balances in a temperature controlled environment.

color-coded for quick identification.

An economical choice of a reliable and durable magnetic stirrer

Ideal for home brew yeast starters

Small, yet powerful stirring ability with a Max. 3000ml stirring capacity

APERA's unique Replaceable Platinum Black sensor ensures high accuracy and consistency in a wide-range conductivity measurement

EASY Auto. Calibration with auto buffer recognition; Auto Temp. Compensation (ATC) ensures accuracy in variant temperatures (0-50. 0˚C)

LARGE LCD with 3 backlit color (indicating 3 different modes), DUAL Display of temp. /EC, and indications of completed calibrations and stable readings

APERA's unique BPB (Brush-resistant Platinum Black) probe ensures high accuracy and consistency in a wide-range conductivity measurement

EASY Auto Calibration with auto buffer recognition; Auto Temp. Compensation (ATC) ensures accuracy in variant temperatures (0-50.0˚C)

LARGE CLEAR LCD with DUAL Display of temp./ppt, and REMINDERS of completed calibrations and stable readings

Infrared sensor — ISO7207 compliant cephalometric method (90°)

Intuitive operation system on a large TFT screen— measure and calibrate at ease

U. S EPA certified, non-toxic polymer standard solutions with 1-year shelf life, easy-to-use

Spear glass pH probe

Made for soft solid pH testing such as cheese, meat, sushi rice, etc

Swiss sensor technology: long life reference system with new type of polymer electrolyte

Quick and easy 1 to 3 points Auto. Calibration with calibration guide (auto. recognizes 5 types of pH standards)

The quality 201T-F pH/temperature combination electrode ensures stable & accurate measurements of regular water solutions for scientific research and quality control

GlP data management (500 groups of data storage) with usb data output

Quick and easy 1 to 4 points auto. Calibration with calibration guide and reminder

The quality 2301T-F conductivity/temp. Combination electrode ensures stable & accurate measurements of regular water solutions for scientific research and quality control

GLP data management (500 groups of data storage) with usb data output

The high quality bpb conductivity electrode generates accurate EC readings in a wide measuring range (0 to 200 MS/cm)

IP57 waterproof and dustproof, ideal for use in harsh environments

The large Clear LCD displays EC/temperature simultaneously along with icons of Stable readings and Finished calibrations

Comes with an all-in-one pH/temp. electrode, measuring pH and temperature in a quick and accurate manner

1-3 points of Auto. pH calibration with self-diagnosis

Large LCD displays pH/temperature simultaneously along with indicators of stable readings and successful calibrations

Comes with an all-in-one ATC pH electrode, measuring pH in a quick and reliable manner

The high quality platinum black conductivity electrode generates accurate EC readings in a wide measuring range (0 to 200 mS/cm)

Quick and easy multi-points Auto calibration with calibration guide and self-diagnosis

Takes quick and accurate measurements of EC, TDS, salinity, and resistivity simultaneously in a wide measurement range (0 to 200 mS/cm)

GLP data management (500 Groups of data storage) with USB data export

Quick and easy 1 to 4 points Auto calibration with calibration reminder function (standard calibration solutions included)

ACCURATE MEASUREMENT: Accuracy: 0. 01 pH, Range: -2. 00-19. 99 pH, ATC, Auto Calibration with buffer recognition. Adopts advanced digital filtering technology, improving response time and accuracy

Data Processing: GLP standard data management, 500 data sets of storage, manual/auto timing storage, RS232 data output

RELIABLE Structure Design: Large LCD with blue backlit, Meets IP54 waterproof and dustproof

Equipped with 2301T-s platinum black ATC conductivity electrode measuring conductivity and temperature simultaneously

Advanced Auto calibration mode with calibration guide and self-diagnosis

Advanced digital processing technology helps generate quick and stable conductivity readings

Patented 3-in-1 fluoride ion probe - no need for stirring or added reagents, directly measuring the ion concentration of fluoride in a quick and simple manner

Stable potential, fast response rate, convenient use; 2-point auto. calibration for fluoride

Comes with an ATC pH electrode, testing fluoride, pH & temperature altogether with high accuracy

Take lab-grade measurements for conductivity/TDS/salinity in a quick and easy manner

Auto/manual data logging with GLP data management (500 sets of data storage) and USB data output

Automatic multi-point calibration with due calibration reminder, and last calibration date check

Reported values are accurate to +/- 0.01 pH at 25 °C and are traceable to NIST Standard Reference Materials (SRMs).

Produced in an ISO 9001:2015 certified facility using high-purity reagents, deionized water and certified analytical balances in a temperature controlled environment.

color-coded for quick identification.

Reported values are accurate to +/- 0.01 pH at 25 °C and are traceable to NIST Standard Reference Materials (SRMs).

Produced in an ISO 9001:2015 certified facility using high-purity reagents, deionized water and certified analytical balances in a temperature controlled environment.

color-coded for quick identification.

Color Coded for Easy Identification

Individually Bagged 250 mL (8.4 fl oz) Poly Bottles

Lot Numbered and Expiration Dated

The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab

Calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe

Bluelab Calibration and conductivity standard solutions... a must in every grower's toolbox.

Meters and solutions from Hydrofarm.

Backed by 100% manufacturer's warranty.

Bluelab 4.0 250 ML Calibration Solution

Color Coded for Easy Identification

Individually Bagged 1 Quart (32 oz) Poly Bottles

Lot Numbered and Expiration Dated

1L bottle of pH 2 buffer solution

Chemical for general purpose lab and educational use

Used for maintaining a pH of 2

Product 1: with lab quality glass probe;

Product 1: This hydroponics tester has ATC that provides consistent reading regardless of any fluctuations in temperature;

Product 1: Double junction electrode has a longer lifespan compared to standard probes due to less contamination and is more accurate and reliable than comparable pens, test strips, drops, and more