Adopts a high-quality pressure sensor, high-accuracy ADC, and low-power MCU. Indoor temperature and pressure measurement digital manometer with wide range, high resolution, and high measurement accuracy. Multifunctional design includes temperature/pressure measurement, data storage, low-battery indicator, data hold, max/min value mode, and differential (DIF) mode. Supports 12 selectable pressure units: mmHg, inHg, ftH₂O, cmH₂O, inH₂O, Pa, kPa, mbar, bar, psi, kg/cm², and oz/in². Features a clear digital LCD display. Enables real-time single-channel pressure measurement and dual-channel differential pressure detection. Ideal for HVAC system diagnostics, gas pressure measurement, calibration, and general pressure system troubleshooting. Name: Digital Manometer Display: LCD Battery: 1 × 6F22 (9 V, 250 mAh) — battery not included Pressure measurement range: ±2.999 psi Accuracy: ±0.3% FSO at 25°C Data storage capacity: 100 readings Maximum pressure: 20 kPa Pressure units: Selectable Low-battery warning: Activates at 6.8 V Auto power-off: After 15 minutes of inactivity Operating temperature: 0–50°C (32–122°F) Storage temperature: −10–60°C (14–140°F) Unit dimensions: 159 × 76 × 32 mm (6.26 × 2.99 × 1.26 in) Carrying bag dimensions: 180 × 110 × 30 mm (7.09 × 4.33 × 1.18 in) Unit weight: 260 g (9.17 oz) Color: Black + orange Material: ABS Package contents: 1 × Digital Manometer 2 × Pressure tubes 1 × Adapter 1 × User manual 1 × Carrying bag Note: Colors may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.