HOBO® H8 Pro Temp/RH   |    Ref: OC-H08-032-08

HOBO® H8 Pro RH/ Temperature Logger
Measure:
Temperature
Relative Humidity



White case reflects solar radiation. Accurate temperature measurements in direct sun require a radiation shield.

Features and specifications

Weatherproof (RH sensor requires protection from rain or direct splashing - see Rain Shield)
High accuracy: ±0.3°F and ±3% RH ±4% in condensing environments
Capacity: 65,291 standard resolution measurements or 32,645 high resolution measurements
0-100% RH range including intermittent condensing environments up to 30°C (86°F) and non-condensing environments above 30°C (86°F)
User-selectable resolution on temperature measurements (8 or 12 bit)
User-selectable sampling intervals: 0.5 seconds to 9 hours, recording times up to 3 years
Readout and relaunch in the field with optional HOBO Shuttle (new H09-002-08 version required)
High speed data readout: full 64K in about 1 minute to either PC or HOBO Shuttle
Precision components eliminate the need for temperature calibration
Drop-proof to 5 feet
Mounting tabs, self tapping screws and hook/loop tape included
Programmable start time/date
Memory mode: stop when full
Automatic data archiving of 7 previous deployments
Nonvolatile EEPROM memory retains data
Blinking LED light confirms operation (visible through communication jack)
User-replaceable battery lasts 3 years
Battery check at launch
Operating range: -22°F to +122°F (-30°C to +50°C)
Time accuracy: ±1 minute per week at +68°F (+20°C)
Size/Weight: 4 x 3.2 x 2" (102 x 81 x 51 mm)/ approx. 3.7 oz. (104 gms)
Intrinsically Safe (IS) model available for use in monitoring conditions in hazardous locations where combustible dust or gas may be a concern.*
Compliance certificate available
NIST-traceable temperature accuracy certification available
Measurement specifications

Temperature (internal sensor)

Range: -22°F to +122°F (-30°C to +50°C)
Accuracy: ±0.33°F (±0.2°C) at +70°F in high resolution mode and ±0.7°F (±0.4°C) in standard resolution mode, see plot below
Resolution: 0.04°F (0.02°C) at +70°F in high resolution mode and 0.68°F (0.38°C) in standard resolution mode, see plot below
Response time in still air: 34 minutes typical
Temperature Accuracy and Resolution
High Resolution


Temperature Accuracy and Resolution
Standard Resolution Mode




Relative humidity

Range: 0% to 100% RH
Accuracy: ±3% (up to ±4% in condensing environments)
Response time: 30 minutes typical in still air
Sensor operating environment: +32°F to +122°F (0°C to +50°C)
Drift: 1% per year (typical), reversible short term drift +1% after exposure to 95% RH, 50°C for 48 hours, factory tune-up available


A software starter kit is required for operation
BoxCar Pro or BoxCar starter kits are available. Each starter kit includes software, computer interface cable and software manual. If you already have logger software, you can refer to the Logger Software Compatibility Chart. Upgrades for BoxCar Pro and BoxCar are available on this website. USB Serial Adapter available.
*Intrinsically Safe Rating: IS, Class I, II, Division 1, Groups A-G, Temperature Code T4 (=135°C); NI, Class I, Division 2, Groups A-D, Temperature Code T4 (=135°C); S, Class II, Division 2, Groups F and G as specified in the US Electric Code and approved by Factory Mutual.









HOBO® H8 Pro RH/ Temperature Logger
Measure:
Temperature
Relative Humidity



White case reflects solar radiation. Accurate temperature measurements in direct sun require a radiation shield.

Features and specifications

Weatherproof (RH sensor requires protection from rain or direct splashing - see Rain Shield)
High accuracy: ±0.3°F and ±3% RH ±4% in condensing environments
Capacity: 65,291 standard resolution measurements or 32,645 high resolution measurements
0-100% RH range including intermittent condensing environments up to 30°C (86°F) and non-condensing environments above 30°C (86°F)
User-selectable resolution on temperature measurements (8 or 12 bit)
User-selectable sampling intervals: 0.5 seconds to 9 hours, recording times up to 3 years
Readout and relaunch in the field with optional HOBO Shuttle (new H09-002-08 version required)
High speed data readout: full 64K in about 1 minute to either PC or HOBO Shuttle
Precision components eliminate the need for temperature calibration
Drop-proof to 5 feet
Mounting tabs, self tapping screws and hook/loop tape included
Programmable start time/date
Memory mode: stop when full
Automatic data archiving of 7 previous deployments
Nonvolatile EEPROM memory retains data
Blinking LED light confirms operation (visible through communication jack)
User-replaceable battery lasts 3 years
Battery check at launch
Operating range: -22°F to +122°F (-30°C to +50°C)
Time accuracy: ±1 minute per week at +68°F (+20°C)
Size/Weight: 4 x 3.2 x 2" (102 x 81 x 51 mm)/ approx. 3.7 oz. (104 gms)
Intrinsically Safe (IS) model available for use in monitoring conditions in hazardous locations where combustible dust or gas may be a concern.*
Compliance certificate available
NIST-traceable temperature accuracy certification available
Measurement specifications

Temperature (internal sensor)

Range: -22°F to +122°F (-30°C to +50°C)
Accuracy: ±0.33°F (±0.2°C) at +70°F in high resolution mode and ±0.7°F (±0.4°C) in standard resolution mode, see plot below
Resolution: 0.04°F (0.02°C) at +70°F in high resolution mode and 0.68°F (0.38°C) in standard resolution mode, see plot below
Response time in still air: 34 minutes typical
Temperature Accuracy and Resolution
High Resolution


Temperature Accuracy and Resolution
Standard Resolution Mode




Relative humidity

Range: 0% to 100% RH
Accuracy: ±3% (up to ±4% in condensing environments)
Response time: 30 minutes typical in still air
Sensor operating environment: +32°F to +122°F (0°C to +50°C)
Drift: 1% per year (typical), reversible short term drift +1% after exposure to 95% RH, 50°C for 48 hours, factory tune-up available


A software starter kit is required for operation
BoxCar Pro or BoxCar starter kits are available. Each starter kit includes software, computer interface cable and software manual. If you already have logger software, you can refer to the Logger Software Compatibility Chart. Upgrades for BoxCar Pro and BoxCar are available on this website. USB Serial Adapter available.
*Intrinsically Sate Rating: IS, Class I, II, Division 1, Groups A-G, Temperature Code T4 (=135°C); NI, Class I, Division 2, Groups A-D, Temperature Code T4 (=135°C); S, Class II, Division 2, Groups F and G as specified in the US Electric Code and approved by Factory Mutual.