Hot Wire, Probe Type Hot Wire, Includes NIST Certificate, Minimum Temperature Measured 0 Degrees F, Minimum Velocity Measured 0 fpm, Maximum Temperature Measured 200 Degrees F, Maximum Velocity Measured 9,999 fpm, Compatible with Grainger Part Number 3ATR6, Compatible with Manufacturer Model Number 7565, 7575, 9555, 9565, TA460, TA465, Temperature Accuracy +/ 0.5 Degrees , Air Velocity Accuracy +/-3 Percent