General Tools CMM880 Thermo Hygrometer Digital is a Fast Response Thermo-Hygrometer. General Tools CMM880 Thermo Hygrometer Digital has a microprocessor based design. Formerly Mannix Instrument CMM880.
Temperature
Humidity
Large digital display
F-C switch
Min-Max memory
Reset function
Low battery indication
Data hold
Auto power off (20 minutes)
Specifications:
General Tools CMM880 Thermo Hygrometer Digital
Design
Microprocessor based
Temperature range
-4 to 122 Degrees F ( -20 to 50 Degrees C)
Humidity range
0 to 100 percent RH
Temperature accuracy
+/-1.8 Degrees F (+/-1 Degrees C)
Humidity accuracy
+/-5 percent RH
Response time
60 to 80 seconds
Power source
2 "AA" batteries
Dimensions
6.7" x 1.85" x 0.5"
Supplied With
Batteries and Protective cap with pocket clip
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
