A versatile gauge for most wellbore operations

The Reservoir Group Shortline Piezo Memory Gauge is the shortest available in its class and is ideal for applications where longer gauges are difficult to use.

At only 7.83" long and with a 1.25" diameter, the Slimline is compact, robust and ideal for short rig-up wireline and gauge carrier applications. Using a single detachable ‘C’ size Battery Pack, it is capable of recording data for up to a year, helping our clients to perform longer downhole surveys.


  • At only 7.83" long, it is the shortest ‘C’ size battery powered gauge available anywhere
  • Fits into standard downhole carriers
  • Unique electronics assembly is less susceptible to vibration
  • Large 2,000,000 data set memory
  • Long lasting ‘C’ and ‘CC’ size Battery Packs can provide uninterrupted data for up to a year or more
  • Easy to use and can run multiple jobs without re-programming


  • Gradient surveys
  • Pressure build-up or draw-down tests
  • Production monitoring and artificial lift control
  • Production optimisation
  • Reservoir evaluation, well testing and DST
  • Slickline operations
  • Static, flowing and build-up surveys
  • Temperature logging
  • Multiple well surveys without re-programming


Maximum external pressure Must not exceed sensor range or 25 ksi Max
Sensor range 8 options from 0.75 ksi to 25 ksi *(Note)
Sensor type Piezo-resistive
Accuracy ( >100 psi) <± 0.050% FSO
Accuracy typical
± 0.030% FSO
Long-term stability
0.1% FSO
Drift < 3 psi per year
0.0003% FSO
Maximum temperature
Must not exceed range or 177°C Max
Range 4 options from 100°C to 177°C
± 0.6°C
± 0.2°C
0.0001% FSO
Battery type
C or CC Lithium
Operating voltage
3.2 to 3.9 V
Battery life **
193 days or more than 1 Year ***
Sampling interval 1/100s, 1/10s, ≥ 1s
2,000,000 records
Record contents
Time, pressure, temperature, battery voltage
Materials Inconel 718
Standard or H2S