On the basis of the electroelastic perturbation model, which includes electrical perturbation items, a doubly rotated cut area of langasite (LGS) defined by the Euler angles φ, from 137° to 160°, and ψ, from 18° to 25°, is proposed as a design for pressure sensors because it has good temperature stability (TCD < 10 ppm), high electromechanical coupling coefficients (k2 > 0.4%) and relatively high pressure sensitivity (6–8 × 10–12/(Pa · (R/h)2). Differential surface acoustic wave resonators made of LGS (0°, 150° and 22°) have been fabricated and tested. The measured fractional frequency changes among the differential resonators vs pressure from 0 to 0.6 MPa verify that the experimental relative sensitivity is 3.7 × 10–10 fractional frequency change per Pa, which is in agreement with the calculated prediction. The temperature dependence is within 2.5 kHz/℃ in the range from 20℃ to 100℃.