Specification | | Specifications | ST730 | ST732 | ST733 | Measurement | Air Velocity:m/s, ft/mim, km/h, mile/h, knots Temperature:C and F | Air Velocity:m/s, ft/mim, km/h, mile/h, knots Air Flow: CMM, CFM Temperature:C and F | Air Velocity Range | 0.00~40.00 m/s, 0.1~7874.0 ft/min, 0.00~144.00 km/h, 0.00~89.50 mile/h, 0.00~77.75 knots | Air Velocity Resolution | 0.01 m/s, 0.1 ft/min, 0.01 km/h, 0.01 mile/h, 0.01 knots | Air Velocity Accuracy | ±(0.03 ms+3% of reading); ±(5.9 ft/min+3% of reading); ±(0.11 km/h+3% of reading); ±(0.07 mile/h+3% of reading); ±(0.06 knots+3% of reading) | IRT Temp. Range | -32~537.5C (-25.6~999.5F) | IRT Accuracy | -32~-20C (-25.6~-4F): ±3C (±5.4F), -20~100C (-4~212F): ±2C (±3.6F), 100~537.5C (212~999.5F): ±2% | D/S Ratio | 8:1 | 8:1 | 30:1 | Emissivity | 0.95 fixed | 0.95 fixed | 0.10~1.00 Adj. | Sample Time | Approx. 0.5 sec. | Operation Temperature | 0~50C (32~122F); 10~90% RH | Weight | 320 g (11.29 oz.) | 320 g (11.29 oz.) | 310 g (10.93 oz.) | Dimension | Main: 184 x 70 x 40 mm (7.24 x 2.76 x 1.57 inch) Telescope probe: approx. 1800 mm (70.87 inch) include wire rod | Accessories | Instruction manual, Carrying case, AC adapter, USB cable, CD (732/733) | | |