$150 - $200, Apera Instruments

ORP60-Z Smart Pocket ORP TesterKit by Apera

• The next-generation water tester designed for seamless water test experience. Professional measurements for ORP and temperature now become easier than ever.
• Just connect the tester to your smartphone via Bluetooth in the ZenTest mobile App (Free download in iOS App Store/Google Play Store), the step-by-step smart guide will lead you to become a water test professional with just a few taps.
• Save and share your measurement and calibration data right on the palm of your hand via email. Data will never get lost thanks to the cloud-based data system.

PC60 Premium Multiparameter (pH/EC/TDS/Salinity) Pocket Tester by Apera

The Apera Instruments PC60 Multi-parameter Tester simply tests pH, EC, TDS, Salinity &Temperature in an ACCURATE, QUICK & RELIABLE manner for all kinds of regular aqueous solution such as hydroponics, aquaculture, pools & spas, tap/drinking water, water treatment, cooling towers, etc. The multi-parameter probe is replaceable.

Up to 3 points of Auto Calibration with auto buffer recognition and 0 to 50°C Auto Temperature Compensation (ATC), ±0.01 pH, ±1% F.S, 0.5°C accuracy with -2.00 to 16.00 pH & 0 to 20.00 mS/cm 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 2 backlit color (blue for measuring mode and green for calibration mode), 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).

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.

• Simultaneously tests pH/EC/TDS/Salinity/Temp. in a quick,accurate, and reliable manner
• EASY-TO-INSTALL Replaceable Multi-parameter Probe with EASY measuring mode switch
• Auto recognition of stable values (with optional AUTO HOLD function) improves consistency so you don't have to guess when to manually hold measurement
• LARGE CLEAR viewing angle screen with 2 backlit color (indicating 2 different modes), dual display of temp./pH/EC/TDS/Salinity, and indications 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 portable carrying case

PH60F-Z Smart Pocket Flat pH Tester Kit by Apera

The Apera ZenTest® PH60F-Z Smart Flat pH Pocket Tester is the next-generation water tester designed for seamless water test experience. Professional pH measurements for flat surface, small-volume liquid samples, and general water solutions now become easier than ever. ORP test is also available with an ORP probe (sold separately).

Just connect the tester to your smartphone via Bluetooth in the ZenTest mobile App (Free download in iOS App Store/Google Play Store), the step-by-step smart guide will lead you to become a water test professional with just a few taps.

Save and share your measurement and calibration data right on the palm of your hand via email. Data will never get lost thanks to the cloud-based data system.

PH60S-DE Spare Spear pH/Temp. Electrode (double-junction, gel inner solution) by Apera

The Apera Instruments PH60S-DE is the replacement probe for PH60S-Z pocket pH Tester, also compatible with PH60F-Z, PH60-Z, PC60-Z. This probe adopts Swiss sensor technology, featuring a spear glass membrane with a long life reference system, ideal for pH testing for cheese, meat, fruit, vegetables, bread, sushi-rice, solid growth medium, soil, and other solid/semi-solid samples. Also works well for common water solution testing.

• Replacement probe for PH60S-Z Smart Spear Pocket pH Tester, also compatible with PH60-Z, PH60F-Z, PC60-Z
• Spear glass membrane, designed for soft-solid sample testing such as cheese, fruit, veggies, sushi rice, meat, soil, etc
• Swiss sensor technology: Long-Life reference system with a polymer electrolyte
• Double junction without diaphragm