| Product Range | 
               
              
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                    | PRESSURE INSTRUMENTS | 
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                    | TEMPERATURE INSTRUMENTS | 
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                    | LEVEL INSTRUMENTS | 
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                    | FLOW INSTRUMENTS | 
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                    | HUMIDITY INSTRUMENTS | 
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                | CLEANROOM INSTRUMENT | 
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                    | HVAC / BMS SENSORS | 
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                    | AIR QUALITY SENSOR | 
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                    | WATER QUALITY SENSOR | 
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                                      | VAV BOXES | 
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                                      | BTU METER | 
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                                      | VALVES | 
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                    | INDICATORS & CONTROLLERS | 
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                    | DATALOGGER | 
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                    | EL420-Current Loop USB Datalogger | 
                   
                  
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                    | HDD302-Humidity and Temperature USB Datalogger | 
                   
                  
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                     | TD1-Economical Temperature Datalogger  | 
                   
                  
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                   | 35T-Digital Paperless Recorder | 
                   
                  
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                     | CRD-Chartless Recorder Cum Datalogger CRD | 
                   
                  
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                    | PSC3-Multiple Channel Process Scanner | 
                   
                  
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                    | D128-Anemometer Datalogger | 
                   
                  
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                    | D129-Sound Level Data Logger | 
                   
                  
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                    | D130-Light Intensity / Lux Datalogger | 
                   
                  
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                    | D131-Temperature/Humidity and Air Pressure Datalogger | 
                   
                  
                  
                   
                   
                
                  
                   
                   
                 
                  
                   
                   
                  
                  
                   
                   
                  
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                    | PORTABLE INSTRUMENTS | 
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                    | ACCESSORIES | 
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                   | ONLINE CATALOGUE  | 
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                    | CATALOGUE REQUEST | 
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                | D131 : RH / Temperature / Pressure | 
               
              
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                                  Model | 
                                  : D131 | 
                                   
                                
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                                  Parameters | 
                                  : RH / Temperature / Pressure | 
                                   
                                
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                                  Display | 
                                  : NIL | 
                                   
                                
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                                  Samples | 
                                  : 10,000 for each Parameter | 
                                   
                                
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                                  Connection | 
                                  : USB | 
                                   
                                
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                                  Accuracy | 
                                  : ± 3.5% RH / ± 1°C / 3 mbar | 
                                   
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                              | Features & Benefits  | 
                             
                            
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                                  Alarm setup and indication | 
                                   
                                
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                                  Recording and low battery indication | 
                                   
                                
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                                   Manual and automatic start mode | 
                                   
                                
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                                  USB port for data traffic and power supply | 
                                   
                                
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                                  Status indication via Red/Yellow LED and Green LED | 
                                 
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                              | Description | 
                             
                            
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                                  You can monitor temperature and humidity values efficiently and convenienctly 
for long time periods by using the Datalogger. 
 
The readings are saved in the logger and simply read out by your PC with USB 
interface. | 
                                 
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                              | Specifications | 
                             
                            
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                                  Data Memory | 
                                  : 10,000 | 
                                   
                                
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                                  Sampling rate | 
                                  : 1min to18 hours | 
                                   
                                
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                                  Data output | 
                                  : USB | 
                                   
                                
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                                  Temperature: | 
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                                  Range  | 
                                  : -40 to 70o/-40 to 158° | 
                                   
                                
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                                  Resolution | 
                                  : 0.1°/0.1o | 
                                   
                                
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                                  Range  | 
                                  : -40 to 70o/-40 to 158° | 
                                   
                                
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                                  Accuracy | 
                                  : 40 to 70o/104 to 158o, ±2o/3.6o; 0 to 40o/ 32 to 104o, | 
                                   
                                
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                                  : ±1o/1.8o; -40 to 0o/-40 to 32o, ±2o/3.6o | 
                                   
                                
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                                  Humidity: | 
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                                  Resolution | 
                                  : 0.1°/0.1o | 
                                   
                                
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                                  Range  | 
                                  : -40 to 70o/-40 to 158° | 
                                   
                                
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                                  Resolution | 
                                  : 0 to 20 and 80 to 100%, ±5%; 20 to 40 and 60 to 80% | 
                                   
                                
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                                    ±3.5%; 40 to 60%, ±3.5% | 
                                   
                                
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                                  Air Pressure: | 
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                                  Range | 
                                  :  950-1050hPa | 
                                   
                                
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                                  Resolution  | 
                                  : 0.1hPa  | 
                                   
                                
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                                  Accuracy | 
                                  : ±0.25%FSO(25o) | 
                                   
                                
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                                  Repeatability
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                                  : ±0.2%(Max±0.3%FSO) | 
                                   
                                
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                                  Linearity/Hysteresis | 
                                  : ±0.24%FSO | 
                                   
                                
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                                  Temperature coefficient | 
                                    ±0.1%FS | 
                                   
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