Relative Humidity - Temperature - Carbon Dioxide Datalogger Kit, e-mail : k222555777@ yahoo.com, HP 081298520353

Features & Applications : This handy Datalogger Kit allows you to measure RH, temperature and CO2 to ensure optimal air quality. Ideal for both residential and commercial applications, the datalogger kit can help prevent poor air conditions that affect both your health and a structure or room. The kit can also calculate and display cfm/ person ventilation rate, enabling precise identification of ventilation related moisture buildup, combustion buildup and more. Features : Dual beam absorption infrared Display : LCD Sample method : diffusion or flow through ( 50 – 100 ml/ min) Power supply : 4 AA batteries ( not included) or 6V DC from external AC/ DC adapter ( included) Includes graphing software & computer cable to record findings Applications : Commercial Residential Procedure for using the Hobo datalogger : Connect the 7001 to channel 3 or 4 Connect the datalogger to the computer Start the Hobo Boxcar software Click on the ' Launch' button to connect to the datalogger When the Launch screen appears, click on the ' Enable/ Disable Channels' button Select the appropriate channel ( 3 or 4) that the 7001 is connected to On the pull down menu next to the appropriate channel, select ' Voltage ( Cable 2.5 Stereo) ' Click on the ' Apply' button Spec Summary : Temperature ( internal sensor) Range : -4 to + 158° F ( -20 to + 70° C) Range for internal sensor when used outside of case : -40 to + 248° F ( -40 to + 120° C) Accuracy : ± 1.27° F ( ± 0.7° C) at + 70° F Resolution : 0.7° F ( 0.4° C) at + 70° F Response time still in air : 15 min. typical with sensor inside case; 1 min. typical with sensor outside case Relative humidity ( user-replaceable RH sensor) Range : 25 to 95% RH at + 80° F for intervals of > 10 seconds, non-condensing and non-fogging Accuracy : ± 5% Response time : 10 min. typical in air Sensor operating environment : + 41 to + 122° F ( + 5 to + 50° C) non-condensing and non-fogging Power : External input accepts the following sensors: Wide range of temp sensors ( TMCx-Hx series) Split-core CTs for AC current ( 5 Models) 4-20 mA input cable ( CABLE-4-20mA) 0-2.5 V DC input cable ( Cable-2.5-Stereo) Input range : 0 to + 2.5 Volts DC Resolution : 10 mV ( 8-bit) External 2.5 Volt input 2.5 mm jack: external input ground, input, switched 2.5 Volt output; external input ground connection is not the same as PC interface connection ground and should not be connected to any external ground Accuracy : ± 10 mV ± 1% of reading Out power : + 2.5 Volts DC at 2 mA, active only during measurements Performance CO2 Channel Measurement Range : 0-4, 000 PPM voltage output 0-10, 000 PPM display Resolution : ± 1 ppm Accuracy : ± 50 ppm or ± 5% of reading ( up to 1.5% or 15, 000 ppm) , whichever is greater Warm-Up Time :