Extech 407445 Heavy Duty Hygro-Thermometer with PC Link features: Remote sensor, dual display of RH and Temperature plus PC interface; Rugged design for field use; Built-in RS-232 PC serial interface; Large LCD displays humidity and temperature simultaneously, etc.
Extech 407445-NIST- NIST Calibration Certificate –Heavy Duty Hygro-Thermometer with PC Link features: Remote sensor, dual display of RH and Temperature plus PC interface; Rugged design for field use; Built-in RS-232 PC serial interface; Large LCD displays humidity and temperature simultaneously, etc.
Extech 44550 Pocket Digital Thermometer and Hygrometer features: Built-in sensors provide simultaneous readings of Relative Humidity and Temperature; Humidity: 20 to 90%RH (±5%RH), Temp: 14 to 122°F or -10 to 50°C, Accuracy: ±5%RH; ±2°F, ±1°C; Max/Min with "Clear" function.
Extech 445580 Humidity Temperature Pen features: Compact, Digital Hygro-Thermometer, ideal for field use; Simultaneous display of Temperature (°C/°F) and Relative Humidity; Max/Min and Data Hold; Built-in self calibration utility, etc.
