Kestrel DROP D2 Wireless Temperature & Humidity Data Logger
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Wirelessly know and log your temperature and humidity conditions anywhere.
Know your temperature and humidity conditions anywhere with the small, rugged Kestrel DROP D2 Temperature and Humidity Logger
- The EASIEST way to monitor and track temperature, humidity, heat index and dew point in almost any environment – wet or dry, indoors or out
- View data wirelessly via Bluetooth® low energy on your iOS phone or tablet with the free Kestrel LiNK app
- Store thousands of data points and get months of logging on a single coin-cell battery - customize logging rate, connections and alerts
- See, save and share data from multiple DROPs with just one phone or tablet –
- iOS 6 installed iPhone 4s, iPad 3rd generation or later.
- Android 4.3 and higher. Works with most Android devices with Bluetooth® low energy, including Samsung Galaxy, Nexus 4, Motorola Droid and other recent generation phones and tablets.
Kestrel DROP D2 Wireless Temperature & Humidity Data Logger Overview
A Kestrel DROP is the world’s easiest-to-use rugged environmental data logger. Available in three models – the Kestrel DROP D1 Temperature Logger, the Kestrel DROP D2 Temperature and Humidity Logger, and the Kestrel DROP D3 Temperature, Humidity and Pressure Logger – all three models allow you to monitor and record the conditions of any environment and easily access and chart real-time and historical data on your phone, tablet or other smart device.
The Kestrel DROP D2 data logger can be placed wherever needed to log temperature and humidity with the data logs retrieved wirelessly and automatically to the Kestrel LiNK app when within wireless range(up to 100’ or more line of sight).
Use a DROP Anywhere - Small, Accurate, Rugged and Waterproof
Each DROP measures just 1 x 1.8 x 2.4 inches (24 x 46 mm x 60 mm) and weighs just 1.2 ounces (34 grams). DROP loggers meet military and international standards for water, dust and shock resistance (IP-67 and MIL-STD-810G) and are conveniently equipped with a sturdy d-ring for hanging wherever needed.
DROPs Are Powered by the Kestrel LiNK App
Kestrel LiNK is the free app that powers the DROP loggers. With Kestrel LiNK on your smart phone or tablet, you can view real-time readings from any DROP logger within wireless range (up to 100’ or more line of sight) via Bluetooth Low Energy. Each phone or tablet can connect to up to 8 DROP loggers at the same time and store data logs from many more. Min/Max/Average readings are clearly displayed and the data log is viewable as a scrolling graph with detailed data for each logged point. The Kestrel LiNK app also allows adjustment of the logging interval and other settings as well as real-time threshold alerts. Readings can be updated as frequently as every 2 seconds and logging time and date are automatically updated whenever connected to your smart device. You can also send and share real-time and logged environmental data via email, Facebook or Twitter
Requirements:
- iOS 6 installed iPhone 4s, iPad 3rd Generation, iPod Touch 5th Generation and above.
- Android 4.3 and higher. Works with most Android devices with Bluetooth® low energy, including Samsung Galaxy, Nexus 4, Motorola Droid and other recent generation phones and tablets.
American-Made Quality and a Five-Year Warranty
Every Kestrel environmental instrument is designed and built entirely in the USA. Kestrel’s history and focus on quality and ruggedness is reflected in the DROP’s industry-leading five-year warranty. Kestrel has been building rugged environmental instruments that help people do their jobs more safely and efficiently for more than fifteen years and has built a reputation for reliability one meter at a time.
DROP Customer Feedback:
The Kestrel DROP D2 and D3 are absolutely the best kept secret in the cigar industry! In the high tech world we live in, I am now able to keep a vigilant eye over my investment by remotely monitoring the environmentals of my humidor via a simple app on my iPhone. Having the ability to set alerts when humidity and temperature drop or go above ideal conditions is invaluable. This is a MUST HAVE accessory for anyone with a humidor!
Where Can a Kestrel DROP Be Used?
- Bedroom
- Basement
- Attic
- Kennel
- Barn
- Hatchery
- Greenhouse
- Shipping Container
- Airplane
- Ship
- Warehouse
- Factory
- Humidor
- Safe
- Refrigerator
- Field
- Winery
- Forest
- Laboratory
- Classroom
- Training Center
- Kitchen
- Silo
- Shooting range
- Construction site
- HVAC System
Environmental Measures
- Dew Point Temperature
- Heat Stress Index
- Relative Humidity
- Temperature
Features
- Drop-Tested to MIL-STD-810G
- Floats
- LiNK Wireless Communication to Mobile Devices (Bluetooth low energy)*
- Relative Humidity Sensor
- Temperature Sensor (Patented External Isolated)
- Waterproof to IP67 (3'/1M for 30 minutes)
Includes
- Battery - 1 x CR2032
- Certificate Of Conformity (Spec Sheet)
- Instructions
Connectivity
Kestrel LiNK for iOS & Android
The Kestrel LiNK® App for iOS/Android allows you to Wirelessly connect with iOS and Android devices and remotely view real-time environmental data and receive alerts for changing conditions. Available for your Kestrel 5 Series Meter or DROP Logger, Kestrel LiNK also provides easy transfer of the Kestrel’s stored data log, a clear graph of all historical data. Alerts can be customized based on temperature, heat index, wind, or other measurements. LiNK enables easy firmware updates of Kestrel 5 series meters.
Data is transmitted wirelessly via Bluetooth® Low Energy within wireless range (100’ line of sight– reduced by walls and obstructions). Mobile device and Kestrel must remain within range to trigger alerts.
Specifications
| SENSORS | ||||
|---|---|---|---|---|
| SENSORS | ACCURACY (+/-) | RESOLUTION | SPECIFICATION RANGE | NOTES |
| AmbientTemperature | 0.9 °F 0.5 °C | 0.1 °F 0.1 °C | 14 to 131°F -10 to 55 °C | Airflow of 2.2 mph|1 m/s or greater provides fastest response and reduction of insolation effect. For greatest accuracy, avoid direct sunlight on the temperature sensor and prolonged sunlight exposure to the unit in low airflow conditions. Calibration drift is negligible for the life of the product. For further details, see Battery Operational Temperature Limits. |
| Relative Humidity | 2%RH | 0.1 %RH | 10 to 90% 25°C noncondensing | To achieve stated accuracy, unit must be permitted to equilibrate to external temperature when exposed to large, rapid temperature changes and be kept out of direct sunlight. Calibration drift is typically less than ±0.25% per year. |
| Pressure | 1.5 hPa|mbar 0.044 inHg 0.022 PSI | 0.1 hPa|mbar 0.01 inHg 0.01 PSI | 25°C/77°F 700-1100 hPa|mbar 20.67-32.48 inHg 10.15-15.95 PSI | Monolithic silicon piezo-resistive pressure sensor with second-order temperature correction. Between 1100–1600 mbar, unit will operate with reduced accuracy. Sensor may not operate above 1600 mbar and can be damaged above 6,000 mbar or below 10 mbar. Calibration drift is negligible for the life of the product. |
| CALCULATED MEASUREMENTS | |||
|---|---|---|---|
| MEASUREMENT | ACCURACY (+/-) | RESOLUTION | SENSORS EMPLOYED |
| Density Altitude | 226 ft 69 m | 1 ft 1 m | Temperature, Relative Humidity Pressure |
| Dew Point | 3.4 °F 1.9 °C 15- 95% RH. Refer to Range for Temperature Sensor | 0.1 °F 0.1 °C | Temperature, Relative Humidity |
| Heat Index | 7.1°F 4.0°C | 0.1 °F 0.1 °C | Temperature, Relative Humidity |
| THI (NRC) | 1.5 °F 0.8 °C | 0.1 °F 0.1 °C | Temperature, Relative Humidity |
| THI (Yousef) | 2.3 °F 1.3 °C | 0.1 °F 0.1 °C | Temperature, Relative Humidity |
| Wet Bulb Temperature - Psychrometric | 3.2 °F 1.8 °C | 0.1 °F 0.1 °C | Temperature, Relative Humidity Pressure |
| ADDITIONAL PRODUCT INFO | |
|---|---|
| Response Time & Display Update | Display updates every 1 second. After exposure to large environmental changes, all sensors require an equilibration period to reach stated accuracy. Measurements employing RH may require longer periods particularly after prolonged exposure to very high or very low humidity. WBGT requires about 8 minutes to reach 95% accuracy and about 15 minutes to reach 99% accuracy after exposure to large environmental changes. |
| Data Storage | Logged history stored for every measured value. Auto-store interval settable from 2 seconds to 12 hours*, overwrite on or off. D1: >13,000 data points, D2: >7,000 data points, D3: >6,000 data points. |
| Bluetooth® Data Connect Option | Wireless range up to 100ft|30m. Compatible with Kestrel LiNK app for iOS (model 4s and later) and select Android products (Android 4.3 and higher) (See website for complete list of compatible 3rd party apps). |
| Certifications | CE certified, RoHS, FCC, IC tested and WEEE compliant. Individually tested to NIST-traceable standards. |
| Origin | Designed and manufactured in the USA from US and imported components. Complies with Regional Value Content and Tariff Code Transformation requirements for NAFTA Preference Criterion B. |
| Battery | User-replaceable CR2032 (included). |
| Shock Resistance | MIL-STD-810g, Transit Shock, Method 516.6 Procedure IV; unit only; impact may damage replaceable impeller. |
| Sealing | Waterproof (IP67 and NEMA-6) |
| Battery Operational Temperature Limits | 0° F to 140 ° F | -18 °C to 60°C Measurements may be taken beyond the limits of the operational temperature range of batteries by maintaining the unit within the operational range and then exposing it to the more extreme environment for the minimum time necessary to take reading. |
| Storage Temperature | -22.0 °F to 140.0 °F | -30.0 °C to 60.0 °C. |
| Size & Weight | 2.4 x 1.8 x 0.9 in | 6 x 4.5 x 2.3 cm 1.2oz | 34g (Lithium battery included) |
