Calibration equipment standards aren't one-size-fits-all. The right choice depends on what you're measuring: pH, conductivity, microwave signals, or a specific Teledyne instrument. The four kits here range from a $61.49 pH tester to a $2,199 microwave calibration kit, so the decision starts with matching the standard to the job.
Quick Take
Among the four, the Professional pH Tester with Calibration Kit is the only pH-specific all-in-one option in this set, and its listed price is the lowest. The Olympus Conductivity Standard Calibration covers three conductivity values. The Teledyne 1860-1200-01 Calibration Kit matches a specific Teledyne model. The Maury Microwave 2.4 mm 7950 Calibration Kit is the specialized microwave option, sold used and as-is.
Listed Prices at a Glance
The bar below represents the relative listed price for each product.
| Product | Listed Price | Price Bar | Condition |
|---|---|---|---|
| Maury Microwave 2.4 mm 7950 Calibration Kit | USD 2,199.00 | Used | |
| Professional pH Tester with Calibration Kit | USD 61.49 | New | |
| Teledyne 1860-1200-01 Calibration Kit | USD 324.85 | New - Open box | |
| Olympus Conductivity Standard Calibration 30.45% 39.65% 59.06% Nondestructive | USD 332.00 | Used |
Decision Matrix
- Choose the Maury Microwave 2.4 mm 7950 Calibration Kit if your work centers on microwave measurements and you can manage an as-is, used unit.
- Choose the Professional pH Tester with Calibration Kit if you need a pH meter that comes with calibration solutions and automatic calibration.
- Choose the Teledyne 1860-1200-01 Calibration Kit if you have a Teledyne instrument that uses this model number and you're comfortable with an open-box item.
- Choose the Olympus Conductivity Standard Calibration if you need three known conductivity standards for nondestructive testing or material analysis.
Product Notes
Maury Microwave 2.4 mm 7950 Calibration Kit
This is a used 2.4 mm calibration kit for microwave test equipment. It is sold as-is, without a calibration certificate, and the male termination has been substituted with an Agilent 85138B. The upside is the specialized set: a 2.4 mm kit from Maury Microwave aimed at precise microwave calibration. The limitation is that the used, as-is condition and the substituted part mean you have to be able to assess the kit yourself before relying on it. If you work in microwave measurement and know your way around calibration hardware, this is the kit that matches that niche.
Professional pH Tester with Calibration Kit
The Professional pH Tester brings together the meter and calibration solutions in one set. The included solutions cover 4.00 and 7.00, and the features include automatic calibration, automatic temperature compensation, a moisture retention cap, a digital display, a protective cap with sponge, and three included LR44 batteries. For pH reading in fermentation or liquid testing, this gives you a complete starter setup. The trade-off is that it's only for pH; it won't help with conductivity, microwave, or other calibration tasks. The included calibration solution kit makes it a practical grab-and-go option for simple pH checks.
Teledyne 1860-1200-01 Calibration Kit
This is a Teledyne-branded calibration kit, model 1860-1200-01, in new open-box condition. The model number is the key: if your Teledyne instrument uses this reference, the kit is a direct match. New open-box condition is the main trade-off to weigh. The brand and model specificity are the strengths here, especially for a lab or shop that needs a spare calibration kit for Teledyne gear. If you don't have a Teledyne instrument, the model-specific nature is less relevant.
Olympus Conductivity Standard Calibration 30.45% 39.65% 59.06% Nondestructive
This used Olympus set includes three individual conductivity standards with values of 30.45, 39.65, and 59.06 %IACS/EW. Each standard has a calibration date of 10/03/2025. The product name indicates use in nondestructive testing and material analysis. The strength is having three known conductivity reference values in one unit, which is helpful for checking the accuracy of a conductivity meter. The used condition is the trade-off here; if previous handling matters to you, that's the factor to consider.
Final Recommendation by Use Case
For microwave calibration, the Maury Microwave 2.4 mm 7950 Calibration Kit is the only product in this set built for that signal range. For pH measurement, the Professional pH Tester with Calibration Kit includes the calibration solutions and automatic features you need. For Teledyne-specific calibration, the Teledyne 1860-1200-01 Calibration Kit is the model-matched option. For conductivity standards, the Olympus set provides three known reference values. Let the instrument you're calibrating be the deciding factor.
