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Kestrel® DROP Wireless Data Loggers

Kestrel® DROP D3 Wireless Environmental Data LoggerKestrel® DROP D3 Wireless Environmental Data Logger
Kestrel® DROP D2 Wireless Temperature and Humidity Data LoggerKestrel® DROP D2 Wireless Temperature and Humidity Data Logger
Kestrel® DROP D1 Wireless Temperature Data LoggerKestrel® DROP D1 Wireless Temperature Data Logger

Kestrel® DROP Wireless Data Loggers are small, rugged, and accurate environmental data loggers. Collect temperature, relative humidity, and pressure data on the Kestrel LiNK app for iOS and Android devices.

Description

Kestrel DROP Wireless Data Loggers are small, rugged, and accurate environmental data loggers. They are available in three models:

Kestrel<sup>®</sup> DROP D1 Wireless Temperature Data Logger Kestrel<sup>®</sup> DROP D2 Wireless Temperature and Humidity Data Logger Kestrel<sup>®</sup> DROP D3 Wireless Environmental Data Logger
DROP D1 DROP D2 DROP D3
Temperature X X X
Humidity X X
Heat index X X
Dew point temperature X X
Station pressure X
Density altitude X
Pressure trend X
Order code KES-D1 KES-D2 KES-D3
Price $69 $99 $129

Features

  • View, graph, record, and monitor environmental conditions
  • Provides real-time, wireless, graphing functionality
  • Access in real time or graph the data via Bluetooth® Low Energy (BLE) on your smart device
  • Log options: 2 s, 5 s, 10 s, 20 s, 30 s, 1 min, 2 min, 5 min, 10 min, 20 min, 30 min, 1 hr, 2 hr, 6 hr, 12 hr
  • Range of 100 feet for iPhone connection
  • Connects only to the free Kestrel LiNK App, downloaded directly from the App Store or Google Play
  • Share real-time/logged data with Kestrel LiNK app via email, text, and social media
  • Battery life of 6 months to 1 year depending on user settings and logging rate
  • Rugged
  • Accurate
  • Waterproof

Sample Data

Specifications

Data Collection

Accuracy Resolution Range
Temperature ±0.9°F/0.5°C 0.1°F/0.1°C −10°C to 55°C
Humidity ±2% RH 0.1% RH 10% to 90% RH, 25°C
Pressure
  • ±1.5 mbar at 25°C, 700 to 1100 mbar
  • ±0.044 inHg at 77°F, 20.67 to 32.48 inHg
0.1 mbar/0.01 inHg 25°C/77°C, 700 to 1100 mbar/20.67 to 32.48 inHg
Dew point ±3°F/±1.8°C 0.1°F/0.1°C 10% to 90% RH at 77°F/25°C over 10 to 55°C/50 to 131°F
Heat index ±5°F/±2.6°C 0.1°F/0.1°C 10% to 90% RH at 77°F/25°C over 10 to 55°C/50 to 131°F
Density altitude ±25.0 m/±82.0 ft 0.1 m/0.1 ft 10% to 90% RH over 10 to 55°C/50 to 131°F
700 to 1100 mbar/20.67 to 32.48 inHg
Temperature (D1, D2, D3) Humidity (D2, D3) Pressure (D3)
Operational range 0°F/−18°C to 140°F/60°C 0 to 100% RH 10 to 1200 hPa
Dimensions 2.4 x 1.8 x 0.9 in/6 x 4.5 x 2.3 cm
Weight 1.2 oz/34 g
Battery type User-replaceable CR2032 (included)
Connectivity Bluetooth® Low Energy (BLE)
Logging rate 2 seconds to 12 hours
Storage temperatures −22°F to 140°F/−30°C to 60°C
Shock resistance MIL-STD-810G, Transit Shock, Method 516.6 Procedure IV (4 foot drop test)
Water resistance IP67 and NEMA-6 (30 minute submersion at 1 meter, 3.3 ft)

Storage Capacity

DROP D1 DROP D2 DROP D3
Maximum data points 13,064 8,165 6,220
Logging every 2 seconds Fills up after 7.5 hours Fills up after 4.5 hours Fills up after 3.4 hours
Logging every 10 minutes Fills up after 90.7 days Fills up after 56.7 days Fills up after 43.2 days
Logging every 2 hours Fills up after 544 days Fills up after 340 days Fills up after 259 days

Battery Life

  • The battery life varies based on usage.
  • For baseline conditions and settings, the battery will last approximately 6 months.
    • Temperature: 75°F
    • Logging rate: 10 minutes
    • Update rate: 30 seconds
  • Battery life is reduced by:
    • Colder conditions
    • More frequent logging or update rates
  • Downloads of large data logs (or firmware updates) are best completed with a fresh battery and in temperatures above 10°C/50°F.

Sensor Requirements

Kestrel DROP wireless data loggers are only compatible with Kestrel LiNK app for iOS and Android devices.

iOS

iOS 6 installed iPhone 4s, iPad 3rd generation or iPod Touch 5th generation – or any later iOS or hardware configuration. Will not work on iPhone 4, 3GS on 3G, or any earlier iPad or iPod generation.

Android

Android 4.2 and higher. Works with most Android devices with Bluetooth Smart®, including Samsung Galaxy, Nexus 4, Motorola Droid, and other recent generation phones and tablets.

Kestrel LiNK App

Kestrel LiNK app for iOS and Android wirelessly connects with Kestrel DROP Wireless Environmental Data Loggers to display real-time data or import logged data.

What’s Included

  • Kestrel DROP Wireless Data Logger (battery included)
  • Quick-Start Card

Ordering Information

All prices are for U.S. educators.

NameOrder CodePriceQuantity
Kestrel® DROP D3 Wireless Environmental Data LoggerKES-D3$129
Kestrel® DROP D2 Wireless Temperature and Humidity Data LoggerKES-D2$99
Kestrel® DROP D1 Wireless Temperature Data LoggerKES-D1$69

Support

Related Products

Educational use only: Vernier products are designed for educational use. They are not appropriate for industrial, medical, or commercial applications. Product usage disclaimer »

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