Thermometers, hygrometers, barometers COMMETER

Instruments are designed for direct measurement of temperature, relative humidity and atmospheric pressure.

Advantages:

included calibration certificate from the manufacturer
dual line LCD display with special symbols
adjustable dual alarm with audio indication for each channel
memory of minimum and maximum values
function Hold - manual storing of actual values for later displaying

COMMON TECHNICAL PARAMETERS
Operating temperature range:	-10 to +60°C
Temperature sensor:	RTD Ni1000/6180ppm
Accuracy of temperature measurement with built-in sensor:	±0.4°C
Accuracy of temperature input without probes - C3631 instrument:	±0.2°C from -50 to +100°C, ±0.2% from reading from 100 to 250°C
Accuracy of air humidity measurement:	±2.5%RH from 5 to 95% at 23°C, resolution 0.1%
Accuracy of dew-point reading:	±0.5°C from 30 to 95%RH
Accuracy of air-pressure measurement:	±2hPa at 23°C, resolution 0.1hPa
Power:	battery 9V
Battery life:	4 months typically (barometers 2 months typically)
Warranty:	two years


Type	Measuring range	Manual in pdf format
C3120 - AIR THERMOMETER-HYGROMETER - simultaneous reading of temperature and relative humidity, dew-point temperature reading selectable, built-in sensors.	temperature -10 to +60° relative humidity 5 to 95%
C3121 - AIR THERMOMETER-HYGROMETER - simultaneous reading of temperature and relative humidity, dew-point temperature reading selectable, external temperature-humidity probe with 1meter cable. Cable lengths 2 and 4 meters available optionally. Probe diameter is 18mm, length 135mm.	temperature -30 to +105°C* relative humidity 0 to 100%
C3631 - AIR THERMOMETER-HYGROMETER - simultaneous reading of temperature and air relative humidity, dew-point temperature reading selectable, built-in sensors. A Cinch connector for connection of an external RTD Ni1000/6180ppm temperature probe. Surface, pointed-tip, insertion and other probes with Cinch connector are available. Indication of temperature difference of external probe and dew-point temperature.	air temperature -10 to 60° probe temperature -50 to 250° relative humidity 5 až 95%
C3633 - AIR THERMOMETER-HYGROMETER - simultaneous reading of temperature and air relative humidity, dew-point temperature reading selectable, built-in sensors. Surface temperature probe with attaching magnets on the instrument bottom. Indication of temperature difference of surface probe and dew-point temperature. Adjustable audio and optical alarm for indication of the temperature difference for application of surface coatings.	air temperature -10 to 60° surface temperature -10 to 60° relative humidity 5 to 95%
C4130 - THERMO-HYGRO-BAROMETER - simultaneous reading of temperature and air relative humidity, dew-point temperature and air pressure reading selectable, built-in sensors, air pressure trend reading for last 3 hours.	temperature -10 to 60° relative humidity 5 to 95% atmospheric pressure 800-1100hPa
C4141 - AIR THERMO-HYGRO-BAROMETER with external air temperature-humidity probe on a 1 meter cable. Cable lengths 2 and 4 meters available optionally. Probe diameter is 18mm, length 135mm. Built-in indoor temperature and air pressure sensors. Dew-point temperature reading, air pressure trend reading for last 3 hours.	external temperature -30 to +105* internal temperature -10 to +60°C relative humidity 0 to 100% atmospheric pressure 800-1100hPa

Included accessories

Calibration certificate from the manufacturer - Comet, plastic leather bag, battery 9V, Instruments are equipped with connector for external ac/dc adapter.

OPTIONAL ACCESSORIES
	A1515	adapter 230V-50Hz/12Vdc. 9V battery should be replaced with NiCd accumulator 9V.
	A3400	NiCd accumulator 9V
	F1000	sensor cover from sintered bronze for thermo-hygrometers C3121, C4141, filtering ability 0.025mm
	PP4	flat circular flange - for mounting of external probe of thermohygrometers C3121, C4141
	PP90	right-angled stain-less steel flange for mounting of external probe of thermohygrometers C3121, C4141
		accessory for calibration and adjustment of humidity by the user