When you're working in pressure flow process measurement, the pressure calibrator you carry has to match the real pressures on your plant floor. A calibrator with too low a range leaves you stuck on high-pressure transmitters, while one with more range than you need can feel like overkill. Two used pressure calibrators-the Fluke 718 300G and the Crystal Engineering 30 Series-sit at different points on price and pressure range. Your choice comes down to how much pressure you actually service.
Quick verdict
If your calibration work lives near the lower end of the pressure scale, the Fluke 718 300G is the straightforward pick, with a Fluke hard case and fittings included. If you need headroom for higher pressure loops, the Crystal Engineering 30 Series offers a much broader range for less money.
At a glance
| Fluke 718 300G | Crystal Engineering 30 Series | |
|---|---|---|
| Price | USD 1,200.00 | USD 860.00 |
| Relative price | ||
| Pressure range | 300 Psi | 36/3000 PSI |
| Condition | Used | Used |
| Brand | Fluke | Crystal Engineering |
| Part No. | 718 | IS33-36 |
Where each product wins
Fluke 718 300G
- It's the direct pick when your process pressures stay at the lower end of the scale.
- It comes with a Fluke hard case and various fittings, so the calibrator is ready to use without sourcing extras.
- If you prefer a single-range pressure calibrator with a simple spec, the Fluke 718 300G makes that easy.
Crystal Engineering 30 Series
- It covers a much wider pressure band, so one calibrator can handle low-pressure instrumentation and higher-pressure systems.
- It offers more range in a single unit, which is a strong fit for a shop that services a variety of loop pressures.
- It's made in the United States, a detail that matters to some technicians.
Product notes
Fluke 718 300G Pressure Calibrator
The Fluke 718 300G is the unit to reach for when your pressure flow process measurement work stays near the lower end of the scale. This used meter works perfectly and has no owner markings, with only slight signs of use. The set includes the Fluke hard case and various fittings, so you can start calibrating without hunting down extras. That bundled hardware is a concrete advantage if you don't want to source a case separately. The limitation is the range ceiling: at 300 psi, it won't help you on higher-pressure transmitters. It also sits at the higher end of this two-unit price comparison, so you're paying for the complete package rather than extra headroom. For a tech who only touches loops below that 300 psi line, this calibrator offers a tidy, ready-to-carry solution.
Crystal Engineering 30 Series Pressure Calibrator 36-3000 Psi
The Crystal Engineering 30 Series is the range-first choice. Its 36-3000 psi span covers a much wider slice of process pressures, so one used unit can handle low-pressure instrumentation and high-pressure systems alike. It comes in at the lower end of the price comparison, making it a strong option for techs who move between different pressure classes. It's also manufactured in the United States, a useful detail if local build matters to you. The limitation is the lower bound: the 36 psi floor means it can't be used for calibrating instruments below that mark, such as some vacuum or very low pressure gauges. If your process loops stay above 36 psi and you need headroom up to 3000 psi, this calibrator gives you the most coverage for the money.
Final choice by use case
- For lower-pressure field service: The Fluke 718 300G is the easier choice because it includes the hard case and fittings, and its range matches loops that don't climb high.
- For mixed pressure work: The Crystal Engineering 30 Series is the better fit because its broader pressure band covers more ground, making it a flexible single-unit solution.
