Extech Instruments CTH10A User Manual

EXTECHINSTRUMENTS
2CTH10A‐en‐GB_V2.310/15
Introduction
ThankyouforselectingtheExtechModelCTH10ARadioControlledClockwithHygro‐
Thermometerdisplays.TheCTH10Aisareal‐timecalendarClock(12/24hour)thatalsodisplays
temperatureandrelativehumiditymeasurementstakenfromitsinternalenvironmentalsensors.
TheclockcanbesetmanuallyorautomaticallyusingtheRC‐WWVBtimesignal.TheCTH10A
includesanaudible/visibledailyalarmfunctionwith‘snooze’mode.
Thisdeviceisshippedfullytestedand calibratedand,withproperuse,willprovideyearsof
reliableservice.Pleasevisitourwebsite(www.extech.com)tocheckforthelatestversionofthis
UserGuide,ProductUpdates,ProductRegistration,
andCustomerSupport.

MeterDescription

A1:RC‐WWVBtimesignalIcon
A2:TimeDisplay
A3:Date
A4:DayofWeek
A5:IndoorHumidity
A6:IndoorTemperature
B1:‘Snooze’Button
B2:‘MODE/SET’Button
B3:‘+12/24’Button
B4:‘‐C/F
’Button
B5:‘RESET’Button
B6:‘ALON/OFF’Button
C1:WallMountHole
C2:Batterycompartment
C3:TiltStand

Extech Instruments CTH10A Specifications

Temperature Measurement

temperature measurement range	0~50°C (32~122°F)
storage temperature	‐20~60°C (‐4~140°F)
temperature resolution	0.1°C or °F
temperature accuracy ‐5°C to 0°C	±1.5°C (±3°F)
temperature accuracy 1°C to 30°C	±1°C (±2°F)
temperature accuracy 31°C to 50°C	±3°F (±1.5°C)

Humidity Measurement

r.h. measurement range	20~99% Relative Humidity
r.h. accuracy 20% to 40% RH	±8% RH (@25°C)
r.h. accuracy 41% to 70% RH	±6% RH (@25°C)
r.h. accuracy 71% to 90% RH	±8% RH (@25°C)

Power

power supply	Three (3) ‘C’ type batteries

Weight and Dimensions

dimensions	29 x 43 x 3.8 cm (11.4 x 17 x 1.5 in.)
weight	1.25 kg (2.75 lbs.)