High level: 0.1oz/yr(<4g/yr) Midium level:0.25 oz/yr(<7g/yr) Low level: 0.5 oz/yr(<14g/yr) Respone time: Less than 1s Warm-Up time:30s; automatic calibration Autimatic indicaton of 1 hour run time in low battery Operating temperature range: 0℃~50℃ at 75%RH Operates continuously 8 hours; auo OFF after10 minutes of inactivity Approvals: SAE-J2913,SAE-J1627,SAE-J2791;CE(pending);EN-14624 Power: LI-3000mA/h