I've got a couple of good quality analog 0-300 psi IP gauges but would like to get an accurate digital model as ONE reference tool.
There are a lot of cheap Chinese digital gauges on the market, but with tools I like to buy good quality... and just cry once!
I've narrowed it down to the following US Manufacturers (+ rubber boot where available)
Dwyer Instruments 0-300 PSI, DPGA-10 (+/- 1%)
Series DPGAB & DPGWB | 0.5% Digital Pressure Gage is easy to use unit at prices comparable to mechanical gages. This product comes with a protective rubber boot to protect against short drops and rough handling. | Dwyer Instruments
SSI MGA-300-A-9V-R (+/- 1%)
https://www.ssi-sensors.com/perch/resources/documents/ps-an5mga-9v-product-overview.pdf
SSI MG-5-A-9V-R (+/- 0.25%)
https://www.ssi-sensors.com/perch/resources/documents/ps-an4-mg-9v-product-overview.pdf
Ashcroft DG2551N1NAM02L300#- (+/- 0.5%)
2074 Digital Pressure Gauge .25% accuracy
Seems most manufacturers recommend an IP target of say 135psi +/- 5psi (which is +/- 3.7%)
The exception appears to be Poseidon, which apparently MUST be set accurately to the manufacturer's specifications for reliable performance.
My question is how accurate does a SCUBA IP gauge really need to be?
Prices are reasonable at the +/- 1% accuracy level but really take off for +/- 0.25% accuracy.
Any other suggestions gratefully received
There are a lot of cheap Chinese digital gauges on the market, but with tools I like to buy good quality... and just cry once!
I've narrowed it down to the following US Manufacturers (+ rubber boot where available)
Dwyer Instruments 0-300 PSI, DPGA-10 (+/- 1%)
Series DPGAB & DPGWB | 0.5% Digital Pressure Gage is easy to use unit at prices comparable to mechanical gages. This product comes with a protective rubber boot to protect against short drops and rough handling. | Dwyer Instruments
SSI MGA-300-A-9V-R (+/- 1%)
https://www.ssi-sensors.com/perch/resources/documents/ps-an5mga-9v-product-overview.pdf
SSI MG-5-A-9V-R (+/- 0.25%)
https://www.ssi-sensors.com/perch/resources/documents/ps-an4-mg-9v-product-overview.pdf
Ashcroft DG2551N1NAM02L300#- (+/- 0.5%)
2074 Digital Pressure Gauge .25% accuracy
Seems most manufacturers recommend an IP target of say 135psi +/- 5psi (which is +/- 3.7%)
The exception appears to be Poseidon, which apparently MUST be set accurately to the manufacturer's specifications for reliable performance.
My question is how accurate does a SCUBA IP gauge really need to be?
Prices are reasonable at the +/- 1% accuracy level but really take off for +/- 0.25% accuracy.
Any other suggestions gratefully received