Keystone Instruments

Keystone Instruments Keystone Instruments Corporation is the authorized distributor and service center for Testo measuring device

31/05/2026

Every drop of cooking oil counts. To maintain the perfect taste and quality of fried foods, regular oil changes are crucial. But how do you know when to change the oil without incurring unnecessary costs?

Introducing the newly upgrade testo 270 cooking oil tester with Bluetooth and seamless app connection to your smartphone via testo smart app, your documentation is now paperless, HACCP-compliant and absolutely secure.

The perfect solution for F&B practitioners. With just a simple measurement, you can accurately determine the quality of the cooking oil and know precisely when to change it. This will save you both oil and money, while ensuring that your fried food consistently delivers a delicious and perfect flavor.

Don't compromise on the quality of your fried food. Get your hands on the testo 270 Bluetooth cooking oil tester and ensure that every drop of your cooking oil is precious.

Visit our website https://keystone-instruments.com/.../testo-270-cooking.../ or call us at (02) 8831-5056/ (02) 8831-7606/ 0917-822-4194 or email us at [email protected]

Essential in pharmaceutical and laboratory environments: When it comes to complete quality assurance and compliance, The...
31/05/2026

Essential in pharmaceutical and laboratory environments: When it comes to complete quality assurance and compliance, The new esto 162 wifi data loggers series are the perfect solution. They are: 100% reliable. 100% convenient. And 100% efficiency-boosting. 🔒 💯

How does that work? With the clever interaction of smart online data loggers, testo Saveris Cloud and testo Smart App. Monitoring, documentation and alarms are all automated. Achieving compliance has never been easier! 💡

Check out the functions here!👇🏼
https://keystone-instruments.com/the-new-testo-16x.../

For inquiry, you may message us on facebook or call us at (02) 8831-5056/ (02) 8831-7606/ 0917-822-4194 or email us at [email protected]

30/05/2026

With the new testo 174 mini data loggers with Bluetooth and the testo Smart App, storage temperature and humidity are digitally recorded without gaps👀, transmitted error-free ✅ and documented in a traceable manner 📲

– HACCP-compliant and absolutely food-safe. 🔒

Check out the smart features now!

For inquiry, call us at (02) 8831-5056/ (02) 8831-7606/ 0917-822-4194 or email us at [email protected]

The testo 420 balometer is ideal for larger air supplies and returns and enables fast and precise testing and balancing ...
30/05/2026

The testo 420 balometer is ideal for larger air supplies and returns and enables fast and precise testing and balancing of indoor environmental systems. It provides reliable data with precise calculations of the overall volume flow in HVAC systems. Equipped with Bluetooth all data can be saved on your smart device, and reports generated using the free testo app and sent via messaging apps.

✅ Lightweight. Quick set-up. Only 2.9kg
✅ Work efficiently with the testo 420 app
✅ Highest measurement accuracy even in turbulence
✅ Minimizes measurement errors
✅ Create and send reports directly on site
✅ Fits different outlet sizes perfectly

For inquiry, call us at (02) 8831-5056/ (02) 8831-7606/ 0917-822-4194 or email us at [email protected]

measurement made easy! 🔝The compact testo 340 flue gas measuring instrument combines mobility, precise technology and ...
09/05/2026

measurement made easy! 🔝
The compact testo 340 flue gas measuring instrument combines mobility, precise technology and easy handling.

Whether for international service assignments or for control measurements on combustion and power generation systems – with the testo 340 you are reliably and safely mobile.

🟠 Compact design:
Combines professional technology with practical handling

🟠 Also for high gas concentrations:
Unrestricted measurements thanks to extended measuring range

🟠 Selectable sensors:
Tailored to your requirements

▶️ Discover the perfect companion for your service work!

For inquiry, you may message us on facebook or call us at (02) 8831-5056/ (02) 8831-7606/ 0917-822-4194 or email us at [email protected]

Say goodbye to complicated processes! Opt for the ideal solution ⬇️testo 350 flue gas analyzer – built for top-level ind...
06/05/2026

Say goodbye to complicated processes!
Opt for the ideal solution ⬇️

testo 350 flue gas analyzer – built for top-level industrial emissions measurement:

✅ Precise measurements
✅ Easy handling
✅ Robust construction

Find out about the wide range of measurement and analysis tasks and the options for complex data acquisition and analysis.

You too can achieve the optimum.
Contact us for a personalized consultation!

For inquiry, call us at (02) 8831-5056/ (02) 8831-7606/ 0917-822-4194 or email us at [email protected]

Food safety doesn’t need to be a source of stress when you depend on technology that offers reliable support. 💡Testo’s m...
23/04/2026

Food safety doesn’t need to be a source of stress when you depend on technology that offers reliable support. 💡

Testo’s measuring instruments give you confidence in your daily routine and help you carry out processes faster and more efficiently.

👉 Discover tools that can truly take the pressure off.

For inquiry, you may message us on facebook or call us at (02) 8831-5056/ (02) 8831-7606/ 0917-822-4194 or email us at [email protected]

16/04/2026

Quick. Precise. Effortless outlet measurements.
With the testo 440, HVAC pros measure volume flow at air outlets with ease – guided menus and versatile probes ensure accurate results in no time.

👉 Simplify your airflow checks today.

For inquiry, you may message us on facebook or call us at (02)
8831-5056/ (02) 8831-7606/ 0917-822-4194 or email us at [email protected]

31/03/2026

One instrument. All IAQ parameters.

The testo 400 is the universal solution for climate and IAQ experts – precise measurements, smart assistants, and complete documentation on site.

👉 Discover your perfect partner for every IAQ job.

For inquiry, you may message us on facebook or call us at (02) 8831-5056/ (02) 8831-7606/ 0917-822-4194 or email us at [email protected]

Address

2130 Leveriza Street
Pasay City
1304

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm
Saturday 8am - 12pm

Telephone

+63288315056

Website

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