
Ultra-Low-Power Digital Pressure Gauge
Overview
Product Overview
The APSL323 Digital Pressure Gauge is an intelligent pressure measuring instrument developed and produced in accordance with national regulations. It consists mainly of a pressure sensor and a signal-processing circuit.
The gauge offers corrosion resistance, shock resistance, vibration resistance, low temperature drift and high stability. It is powered by a large-capacity, high-performance lithium battery (available in rechargeable and non-rechargeable versions). Featuring refined, attractive appearance and simple operation,
it adopts a low-power circuit, enabling (2–3) years of online use on a single charge.
Technical Parameters
(1) Pressure range: (-0.1 ~ 250) MPa.
(2) Pressure units: kPa, MPa, psi, bar, kgf/cm2, mH2O, mmHg, atm.
(3) Communication: RS232 (optional).
(4) Accuracy class: 0.2, 0.5.
(5) Display: 4-digit or 5-digit digital display.
(6) Cut-off current: <20μA.
(7) Power supply: 3.6V high-performance rechargeable lithium battery, usable for 2 to 3 years per charge.
(8) Storage temperature: (-45 ~ 120)℃.
(9) Process connection: M20*1.5 (external thread); special threads can be customized.
(10) Gauge dimension: φ80mm, overall length 150mm.
Working Environment
(1) Temperature: (-10 ~ 60)℃.
(2) Humidity: ≤85%RH.
(3) Reference calibration environment: (20±2)℃.
(4) Humidity compensation range: (0 ~ 50).
Specifications
- Pressure range
- (-0.1 ~ 250) MPa
- Accuracy
- Class 0.2 / 0.5
- Pressure units
- kPa, MPa, psi, bar, kgf/cm², mH₂O, mmHg, atm
- Display
- 4- or 5-digit numeric display
- Communication
- RS232 (optional)
- Power output
- 3.6 V Li rechargeable battery, 2-3 years per charge; off-current <20 μA
- Storage temperature
- -45 ~ 120 °C
- Process connection
- M20×1.5 (male); custom threads on request
- Dimensions
- Head φ80 mm, total length 150 mm



