Main specifications:：

• -80℃ to +20℃ Dew Point
• 0 - 10000 ppm（PPMv or PPMw）
• Accuracy: ± 1 ℃
• Repeatability: ± 1%
• display parameters: DT, FP, PPMV / PPMW, Vol%, RH, VP, MH / SH, MC
• output: 0 / 4-20mA analog output
• 2 relay outputs (errors & Limits)
• Digital Interface: RS 232 (standard configuration)
• RS 485/Modbus（Optional）