Honeywell HumidIconTM Digital Humidity/Temperature Sensors HIH6100 Series 4.0 %RH Accuracy | 0.5 C Temperature Accuracy Datasheet Honeywell HumidIconTM Digital Humidity/Temperature Sensors Honeywell HumidIconTM Digital Humidity/Temperature Sensors, HIH6100 Series, are digital output-type relative humidity (RH) and temperature sensors combined in the same package. These sensors provide an accuracy level of 4.0 %RH and a temperature accuracy level of 0.5 C. * Industry-leading long-term stability * True temperature-compensated digital I2C or SPI output * Industry-leading Total Error Band * Energy efficiency * Industry-leading reliability * Lowest total cost solution * Ultra-small package size and options * Other accuracies available: 1.7 %RH (HIH9000 Series), 2.0 %RH (HIH8000 Series), 3.0 %RH (HIH7000 Series), and 4.5 %RH (HIH6000 Series) What makes our sensors better? HIH6131 INDUSTRY-LEADING TOTAL ERROR BAND (TEB) (5 %RH)* HIH6130 Honeywell specifies Total Error Band--the most comprehensive, clear, and meaningful measurement --that provides the sensor's true accuracy of 5 %RH over a compensated range of 5 C to 50 C [41 F to 122 F] and 10 %RH to 90 %RH. TEB includes all errors due to: * Humidity non-linearity * Humidity hysteresis * Humidity non-repeatability * Thermal effect on zero * Thermal effect on span HIH6120 * Thermal hysteresis HIH6121 Total Error Band Errors Humidity Non-Linearity + Humidity Hysteresis = Accuracy + Humidity Non-Repeatability + Thermal Effect on Zero + Thermal Effect on Span + Thermal Hysteresis 2 sensing.honeywell.com = Total Error Band Total Error Band should not be confused with "accuracy", which is actually a component of Total Error Band. Many competitors simply specify the accuracy of their device; however, the specification may exclude hysteresis and temperature effects, and may be calculated over a very narrow range, at only one point in the range, or at their absolute best accuracy level. It is then up to the customer to calibrate the device to make sure it has the accuracy needed for the life of the application. Honeywell's industry-leading Total Error Band provides the following benefits to the customer: * Eliminates individually testing and calibrating every sensor, which can increase their manufacturing time and process. * Supports system accuracy and warranty requirements. * Helps to optimize system uptime. * Provides excellent sensor interchangeability -- the customer can remove one sensor from the tape, then remove the next sensor from the tape, and there is no part-to-part variation in accuracy. For more information about Total Error Band, please see the related technical note, "Explanation of the Total Error Band Specification for Honeywell's Digital Humidity/ Temperature Sensors." INDUSTRY-LEADING LONG-TERM STABILITY (1.2 %RH OVER FIVE YEARS)* Competitive humidity sensors need to go through a 12 hour at 75 %RH rehydration process (which requires special equipment chambers) to correct reflow temperature offset. Honeywell's sensor also experiences an offset after reflow; however, it only requires a five hour rehydration under ambient conditions (>50 %RH). Honeywell's industry-leading long term stability provides the following benefits to the customer. Honeywell's industry-leading long-term stability provides the following benefits to the customer: * Minimizes system performance issues. * Helps support system uptime by eliminating the need to service or replace the sensor during its application life. * Eliminates need to regularly recalibrate the sensor in their application, which can be inconvenient and costly. TRUE, TEMPERATURE-COMPENSATED DIGITAL I2C OR SPI OUTPUT* This typically allows the customer to remove the components associated with signal conditioning from the PCB to free up space and reduce costs associated with those components (e.g., acquisition, inventory, assembly). True, temperature-compensated digital I2C or SPI output often eliminates problems that could occur from having multiple signal conditioning components across the PCB, as well as simplifies integration to the microprocessor, eliminating the need for customer-implemented, complex signal conditioning. *Competitive Differentiator sensing.honeywell.com 3 Features and Benefits INDUSTRY-LEADING RELIABILITY* HIH6130/6131 and HIH6120/6121 Series sensors use a laser trimmed, thermoset polymer capacitive sensing element. The element's multilayer construction provides resistance to most application hazards such as condensation, dust, dirt, oils, and common environmental chemicals, which helps provide industry-leading stability and reliability. 0 . 4 H %R ACY UR ACC Offers customers the lowest total cost solution. LOWEST TOTAL COST SOLUTION* Honeywell's HumidIcon HIH6100 Series offers customers the lowest total cost solution due to the sensor's industry-leading Total Error Band and its being a combined humidity/temperature sensor. One sensor does the work of two! COMBINED HUMIDITY AND TEMPERATURE SENSOR The humidity and temperature sensors are co-located in the same package. This allows the RH measurement to be temperature compensated and provides a second, standalone temperature sensor output. This allows the user to purchase one sensor instead of two. ENERGY EFFICIENT* * Low supply voltage: Can operate down to 2.3 Vdc, which allows use in low energy and wireless-compatible applications to enhance energy savings and prolong system battery life. * Low power consumption: The sensor goes into sleep mode when not taking a measurement within the application, consuming only 1 A of power versus 650 A in full operation in a battery operated system. Sleep mode helps maximize battery life, reduces power supply size, and reduces the application's overall weight. *Competitive Differentiator 4 sensing.honeywell.com Features and Benefits HIGH RESOLUTION High 14-bit humidity sensor resolution and 14-bit temperature sensor resolution within the application help the user's system detect the smallest relative humidity or temperature change. Free up PCB space. Reduce costs. TRUE, TEMPERATURE-COMPENSATED DIGITAL I2C OR SPI OUTPUT* Typically allows the customer to remove the components associated with signal conditioning from the PCB to free up space and reduce costs associated with those components (e.g., acquisition, inventory, assembly). Often eliminates problems that could occur from having multiple signal conditioning components across the PCB. Simplifies integration to the microprocessor, eliminating the need for customer-implemented, complex signal conditioning. Choose options to best fit the application. ULTRA-SMALL PACKAGE SIZE SOIC-8 SMD (Surface Mount Device) and SIP 4 Pin packages are ultra small, including the condensation-resistant versions with hydrophobic filter on-board (HIH6121 and HIH6131). Allows for flexibility of use within the application, occupies less space on the PCB, and typically simplifies placement on crowded PCBs or in small devices. FILTER Available with hydrophobic filter and condensation-resistance, allowing for use in many condensing environments, or without hydrophobic filter, non-condensing. TAPE AND REEL Cost-effective tape-and-reel packaging allows for use in high volume, automated pick-and-place manufacturing, eliminating lead misalignment to the PCB and helping the customer to reduce manufacturing costs. WIDE OPERATING TEMPERATURE RANGE -25 C to 85 C [-13 F to 185 F] allows for use in many applications. OPTIONAL ONE OR TWO %RH LEVEL ALARM OUTPUTS A feature of the HIH6130 and HIH6131, this provides the ability to monitor whether the RH level has exceeded or fallen below predetermined and critical levels within the application. MULTI-FUNCTION ASIC Delivers flexibility within the application by lowering or eliminating the risk and cost of OEM calibration. ROHS AND WEEE COMPLIANT, HALOGEN FREE *Competitive Differentiator sensing.honeywell.com 5 Potential Applications HVAC/R May be used to provide precision RH and temperature measurement in air conditioning/air movement systems, enthalpy sensing, thermostats, humidifiers/ dehumidifiers, and humidistats to maintain occupant comfort and ideal storage humidity/temperature while achieving low energy consumption, supporting system accuracy and warranty requirements, maximizing system uptime, and improving overall system quality. RESPIRATORY THERAPY May be used to provide precision RH and temperature measurement in sleep apnea machines and ventilators, enhancing patient comfort, safety and treatment effectiveness with warm and humidified air. INCUBATORS/MICROENVIRONMENTS May be used to provide optimal temperature and RH levels to support critical processes and experiments, enhancing process efficiency with desired climate conditions. AIR COMPRESSORS May be used to provide precision RH measurement in compressed air lines, allowing the system to remove any condensation; dry compressed air is critical for customer process control measurement. WEATHER STATIONS May be used to provide precision RH and temperature measurement in ground-based and airborne weather stations, allowing real time and highly accurate monitoring/ reporting of actual weather conditions. TELECOM CABINETS May be used to provide precision RH and temperature measurement in the telecom cabinet HVAC system; maintaining proper temperature and humidity levels in the cabinet provides maximum system uptime and performance. GRAIN DRYING SYSTEMS May be used in cable-mounted grain drying management systems to measure the moisture content and temperature level inside the grain silos to help the grains remain dry. 6 sensing.honeywell.com Honeywell HumidIconTM Digital Humidity/Temperature Sensors Table 1. Environmental Specifications Characteristic Condition Min. Typ. Max. Unit Operating temperature range - -25 [-13] - 85[185] C [F] Storage temperature range - -40 [-40] - 85[185] C [F] Storage humidity - 30 - 50 %RH IPC/EIA/JEDEC J-STD-020D apply heat for 4 s max. for manual soldering - - - - 260 [500] 350 [662] C [F] MIL-STD 883H, Method 3015.7 - - 4 kV - - - 100 mA MIL-STD 202G, Method 213D, Test Condition C, half-sine, 6 ms 3 perpendicular axis, 3 shock pulses per axis - - 100 g MIL-STD 202G, Method 204D, Test Condition D, 10 Hz to 2000 Hz - - 20 g Soldering temperature: automated manual ESD Latch-up immunity Shock Vibration Light sensitivity exposed to 50 lumens yellow light; exhibited no change in output Table 2. Humidity Performance Specifications Characteristic Supply voltage variation Condition Min. Typ. Max. Unit 2.3 Vdc to 5.5 Vdc - 0.1 0.5 %RH Compensated humidity range - 10 - 90 %RH Compensated temp. range1 - 5 [41] - 50 [122] C [F] Resolution 14 bit ADC resolution - - 0.04 %RH Accuracy2 - - - 4 %RH 1 - - - 5 %RH Response time airflow minimum 20 l/min - 6 8 s Operating range non-condensing 0 - 100 %RH Long term stability 50 %RH for 5 years - 0.05 1.2 %RH Impact of soldering IPC/EIA/JEDEC J-STD-020D, peak temp. of 260 C [500 F] - - 2.5 %RH Total error band3 Notes: 1 Conversion Formulas: 14 bit ADC output for humidity to %RH: Humidity (%RH) = 2 3 Humidity_14_bit_ADC_output 214 - 2 14 bit ADC output for temperature conversion to C: x 100 Temperature (C) = Temperature_14_bit_ADC_output x 165 - 40 214 - 2 Accuracy is specified at the typical supply voltage of 3.3 Vdc and at 25 C [77 F]. It is the maximum deviation from the ideal transfer function of relative humidity measured over the humidity range of 10 %RH to 90 %RH and includes all errors due to humidity non-linearity, humidity hysteresis and humidity non-repeatability. Total error band is the maximum deviation from the ideal transfer function of relative humidity over the compensated range of 5 C [41 F] to 50 C [122 F]. It includes all errors due to humidity non-linearity, humidity hysteresis, humidity non-repeatability, thermal effect on zero, thermal effect on span and thermal hysteresis. sensing.honeywell.com 7 HIH6100 Series 4.0 %RH Accuracy | 0.5 C Temperature Accuracy Table 3. Temperature Performance Specifications Characteristic Condition Supply voltage variation Min. Typ. 2.3 Vdc to 5.5 Vdc - 0.5 1.0 C - 5 [41] - 50 [122] C [F] Compensated temp. range Max. Unit Resolution 14 bit ADC resolution - - 0.025 C Accuracy - - 0.5 - C Response time 1/e slow moving air 5 - 30 s Long term stability 25 C for 5 years - - 0.05 C/yr Impact of soldering IPC/EIA/JEDEC J-STD-020D, peak temp. of 260 C [500 F] - - 0.1 C Table 4. Current Consumption Characteristic VDD Abbr. Condition Typ. Max. Unit - 0.6 1 A 14 bit fastest update, no sleep 14 bit fastest update, no sleep 0.65 0.75 1 1 mA mA Sleep current 3.3 ISLEEP Supply current: I2C SPI 3.3 3.3 IDD IDD Table 5. Input and Output Characteristics Characteristic Abbr. Condition Min. Typ. Supply voltage Low level output voltage VDD - 2.3 VOL IOL = 2.8 mA min. - High level output voltage VOH IOH = -2.8 mA min. 80 % Low level input voltage VIL - - High level input voltage VIH - Pull-up resistor: I2C SPI (for SS only) RP RSS - - Max. Unit 3.3 5.5 Vdc - 20 % VDD - - VDD - 20 % VDD 80 % - - VDD - - 2.2 10 - - kOhm kOhm Table 6. Measurement Timing Characteristic Start-up time (power-on to data ready) Update rate 8 sensing.honeywell.com Abbr. Condition Min. Typ. Max. Unit TSTA 14 bit TH and 14 bit humidity resolution - 50 60 ms application dependent: measurements are taken only when the application requests them Honeywell HumidIconTM Digital Humidity/Temperature Sensors Figure 1. I2C Timing Diagram SDA tLOW tSUDAT tHDSTA tBUS SCL tHDSTA tHDDAT tHIGH tSUSTO tSUSTA Characteristic Abbr. Min. Typ. Max. Unit SCL clock frequency FSCL 100 - 400 kHz Start condition hold time relative to SCL edge tHDSTA 0.1 - - s Minimum SCL clock low width tLOW 0.6 - - s Minimum SCL clock high width1 tHIGH 0.6 - - s Start condition setup time relative to SCL edge tSUSTA 0.1 - - s Data hold time on SDA relative to SCL edge tHDDAT 0 - 0.5 s Data setup time on SDA relative to SCL edge tSUDAT 0.1 - - s Stop condition setup time on SCL tSUSTO 0.1 - - s tBUS 1 - - s 1 Bus free time between stop and start condition Note: Combined low and high widths must equal or exceed minimum SCL period. 1 Figure 2. SPI Timing Diagram tHDSS tHIGH tLOW SCLK MISO HiZ HiZ tCLKD tSUSS tCLKD SS tBUS Characteristic Abbr. Min. Typ. Max. Unit SCLK clock frequency fSCL 50 - 800 kHz SS drop to first clock edge tHDSS 2.5 - - s Minimum SCLK clock low width tLOW 0.6 - - s Minimum SCLK clock high width1 tHIGH 0.6 - - s Clock edge to data transition tCLKD 0 - 0.5 s Rise of SS relative to last clock edge tSUSS 0.1 - - s Bus free time between rise and fall of SS tBUS 2 - - s 1 Note: Combined low and high widths must equal or exceed minimum SCLK period. 1 sensing.honeywell.com 9 HIH6100 Series 4.0 %RH Accuracy | 0.5 C Temperature Accuracy Table 7. HIH6130/6131 and HIH6120/6121 Series Maximal Accuracy1 (Performance is specified between 10 %RH and 90 %RH) 90 80 RELATIVE HUMIDITY (%RH) 70 60 50 40 30 20 10 0 1 1 2 2 2 3 3 3 3 3 2 1 2 2 2 3 3 3 3 3 2 1 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 3 3 3 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 2 2 3 3 3 3 3 3 3 3 2 2 3 3 3 3 3 3 3 3 2 2 3 3 3 3 3 3 3 3 2 2 3 3 3 3 3 3 3 3 2 2 3 3 3 3 3 3 3 3 2 2 3 3 3 3 3 3 3 3 2 2 3 3 3 3 3 3 3 3 2 2 3 3 3 3 3 3 3 3 2 1 3 3 3 3 3 3 3 3 1 1 3 3 3 3 3 3 3 3 1 1 3 3 3 3 3 3 3 3 1 10 20 30 Maximal accuracy is the mean value between rising and falling RH points TEMPERATURE (C) 10 sensing.honeywell.com 40 50 Honeywell HumidIconTM Digital Humidity/Temperature Sensors Figure 3. SOIC-8 SMD Typical Application Circuits I2C SPI VSUPPLY = 2.3 Vdc to 5.5 Vdc 8 0.22 F 1 VSUPPLY = 2.3 Vdc to 5.5 Vdc 2.2 kOhm Digital Humidity/Temp. Sensor VDD SCL VCORE SDA 2.2 kOhm 3 8 12 V 4 0.22 F LED 0.1 F 2 AL_L VSS VDD VCORE SS 10 kOhm 3 4 SCLK 0.1 F 6 2 VSS MISO 5 LED AL_H 5 7 NC GND 1 Digital Humidity/Temp. Sensor 7 NC GND AL_L 6 GND Figure 4. SOIC-8 SMD Mounting Dimensions, PCB Landing Pattern and Pinout [For reference only: mm/[in].) Mounting Landing Pattern 1,905 [0.075] 4,90 [0.193] 8 7 6 8X 0,61 [0.024] 0,15 [0.006] 5 8X 2,03 [0.08] 3,90 [0.153] 6,0 [0.236] 1 2 3 4 0.41 [0.016] 1,27 [0.050] 4X 4,9 [0.193] 2,055 [0.081] 0,203 [0.0080] 6X 1,27 [0.05] Pinout for I2C Versions 1 Pin ASIC Pad Description Pinout for SPI Versions Pin ASIC Pad Description 1 VCORE connect via 0.1 F to ground 1 VCORE connect via 0.1 F to ground 2 VSS supply ground 2 VSS supply ground 3 4 5 SCL 2 I C clock 3 SS slave select (Input) SDA I2C data 4 SCLK serial clock 1 AL_H alarm output high 5 MISO master-in-slave-out 61 AL_L alarm output low 61 AL_L alarm output low 7 NC not connected externally 7 NC not connected externally 8 VDD supply voltage, connect via 0.22 F to ground 8 VDD supply voltage, connect via 0.22 F to ground Do not connect Pin(s) 5 and/or 6 if the built-in alarm feature is not desired. 1 Do not connect Pin 6 if the built-in alarm feature is not desired. Tape and Reel 1,50 [0.059] 12.00 [0.472] 13 [0.51] 4,00 [0.157] 1,75 [0.069] 0,29 [0.011] 5,50 [0.216] 102 [4.0] 8,00 [0.315] 2,58 [0.102] 330 [13,0] 17,4 [0.68] sensing.honeywell.com 11 HIH6100 Series 4.0 %RH Accuracy | 0.5 C Temperature Accuracy Figure 5. SIP 4 Pin Typical Application Circuit VSUPPLY = 2.3 Vdc to 5.5 Vdc 1 0.22 F 2 Digital Humidity/Temp. Sensor VDD SCL VSS SDA 2.2 kOhm 2.2 kOhm 3 4 GND Figure 6. SIP 4 Pin Mounting Dimensions, PCB Landing Pattern and Pinout [For reference only: mm/[in].) Mounting Landing Pattern 4,90 [0.193] 1,905 [0.075] 1,05 DIA. [0.040] 0,65 DIA. [0.025] 0,063 [0.0025] 3,90 [0.153] 1,27 [0.050] 1,20 [0.047] 8,9 [0.35] PCB 5,0 [0.197] 1,2 - 2,0 [0.05 - 0.08] 1 2 3 4 ASIC Pad Description 1 VDD connect via 0.22 F to ground 2 VSS supply ground 3 SCL I2C clock 4 SDA I2C data 0,203 [0.0080] 0.41 [0.016] 1,27 [0.050] Pin Tape and Reel1 1,50 [0.059] 4,00 [0.157] 1,75 [0.069] 0,32 [0.013] 13 [0.51] 5,00 [0.197] 102 [4.0] 16,00 [0.630] 8,00 [0.315] 1 For orders of 250 to 1000 units 12 sensing.honeywell.com 2,61 [0.103] 330 [13,0] 21,4 [0.84] Honeywell HumidIconTM Digital Humidity/Temperature Sensors Product Nomenclature Order Guide 1 Catalog Listing Description HIH6130-000-001 Honeywell HumidIconTM Digital Humidity/Temperature Sensors: HIH6130/6131 Series, SPI, 5 %RH total error band, SOIC-8 SMD, no filter, non-condensing, 1000 units on tape and reel HIH6130-000-001S Honeywell HumidIconTM Digital Humidity/Temperature Sensors: HIH6130/6131 Series, SPI, 5 %RH total error band, SOIC-8 SMD, no filter, non-condensing, five units on tape (sample) HIH6131-000-001 Honeywell HumidIconTM Digital Humidity/Temperature Sensors: HIH6130/6131 Series, SPI, 5 %RH total error band, SOIC-8 SMD, hydrophobic filter, condensation-resistant, 1000 units on tape and reel HIH6131-000-001S Honeywell HumidIconTM Digital Humidity/Temperature Sensors: HIH6130/6131 Series, SPI, 5 %RH total error band, SOIC-8 SMD, hydrophobic filter, condensation-resistant, five units on tape (sample) HIH6130-021-001 Honeywell HumidIconTM Digital Humidity/Temperature Sensors: HIH6130/6131 Series, I2C, 5 %RH total error band, SOIC-8 SMD, no filter, non-condensing, 1000 units on tape and reel HIH6130-021-001S Honeywell HumidIconTM Digital Humidity/Temperature Sensors: HIH6130/6131 Series, I2C, 5 %RH total error band, SOIC-8 SMD, no filter, non-condensing, five units on tape (sample) HIH6131-021-001 Honeywell HumidIconTM Digital Humidity/Temperature Sensors: HIH6130/6131 Series, I2C, 5 %RH total error band, SOIC-8 SMD, hydrophobic filter, condensation-resistant, 1000 units on tape and reel HIH6131-021-001S Honeywell HumidIconTM Digital Humidity/Temperature Sensors: HIH6130/6131 Series, I2C, 5 %RH total error band, SOIC-8 SMD, hydrophobic filter, condensation-resistant, five units on tape (sample) HIH6120-021-0011 Honeywell HumidIconTM Digital Humidity/Temperature Sensors: HIH6120/6121 Series, I2C, 5 %RH total error band, SIP 4 Pin, no filter, non-condensing, 100 units on tape HIH6120-021-001S Honeywell HumidIconTM Digital Humidity/Temperature Sensors: HIH6120/6121 Series, I2C, 5 %RH total error band, SIP 4 Pin, no filter, non-condensing, five units on tape (sample) HIH6121-021-0011 Honeywell HumidIconTM Digital Humidity/Temperature Sensors: HIH6120/6121 Series, I2C, 5 %RH total error band, SIP 4 Pin, hydrophobic filter, condensation-resistant, 100 units on tape HIH6121-021-001S Honeywell HumidIconTM Digital Humidity/Temperature Sensors: HIH6120/6121 Series, I2C, 5 %RH total error band, SIP 4 Pin, hydrophobic filter, condensation-resistant, five units on tape (sample) Orders of 250 units or more are packaged on tape and reel. sensing.honeywell.com 13 HIH6100 Series 4.0 %RH Accuracy | 0.5 C Temperature Accuracy NOTICE: SENSOR REHYDRATION * Exposure to elevated temperatures, such as those experienced during solder reflow, may dry out the sensing element. It is recommended that the sensor be allowed time to rehydrate after soldering or other high temperature/dry exposures. * Exposure to these conditions will not permanently damage the sensor. It will generally return to its factory-calibrated value after rehydration. * If rehydration is not performed, the sensor may read a slight offset that slowly disappears over time as the sensor becomes exposed to ambient conditions. Conversely, extended exposure to condensing and high humidity environments (>90 %RH) may cause a revisable shift in readings which will generally return to normal after the sensor has been allowed to dry off. To rehydrate the sensor, expose it to room temperature under ambient conditions (>50 %RH) for a minimum of five hours. 14 sensing.honeywell.com WARNING PERSONAL INJURY DO NOT USE these products as safety or emergency stop devices or in any other application where failure of the product could result in personal injury. Failure to comply with these instructions could result in death or serious injury. WARNING MISUSE OF DOCUMENTATION * * The information presented in this product sheet is for reference only. Do not use this document as a product installation guide. Complete installation, operation, and maintenance information is provided in the instructions supplied with each product. Failure to comply with these instructions could result in death or serious injury. ADDITIONAL INFORMATION WARRANTY/REMEDY The following associated literature is available on the Web: * Product installation instructions Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Honeywell's standard product warranty applies unless agreed to otherwise by Honeywell in writing; please refer to your order acknowledgement or consult your local sales office for specific warranty details. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace, at its option, without charge those items it finds defective. The foregoing is buyer's sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. In no event shall Honeywell be liable for consequential, special, or indirect damages. * Product application note * Application sheets: - Humidity Sensor Performance Characteristics - Humidity Sensor Theory and Behavior - Humidity Sensor Moisture and Psychrometrics - Humidity Sensor Chemical Resistivity - Thermoset Polymer-Based Capacitive Sensors * Technical Notes: - I2C Communication with the Honeywell HumidIconTM Digital Humidity/Temperature Sensors - SPI Communication with the Honeywell HumidIconTM Digital Humidity/Temperature Sensors - Using Alarms on the Honeywell HumidIconTM Digital Humidity/Temperature Sensors - Entering and Using Command Mode on the Honeywell HumidIconTM Digital Humidity/Temperature Sensors While we provide application assistance personally, through our literature and the Honeywell website, it is up to the customer to determine the suitability of the product in the application. Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this printing. However, we assume no responsibility for its use. Find out more Honeywell serves its customers through a worldwide network of sales offices, representatives and distributors. For application assistance, current specifications, pricing or name of the nearest Authorized Distributor, contact your local sales office. To learn more about Honeywell's sensing and control products, call +1-815-235-6847 or 1-800-537-6945, visit sensing.honeywell.com, or email inquiries to info.sc@honeywell.com Sensing and Control Honeywell 1985 Douglas Drive North Golden Valley, MN 55422 honeywell.com 009059-7-EN May 2015 Copyright (c) 2015 Honeywell International Inc. All rights reserved.