Squirrel 2040 Data Logger w/ (2) 100 Hz Channels and Wi-Fi C

>> Measures Current, Voltage, Resistance, High Voltage, Pulse and Digital Event/State Inputs
>> Integated 802.11b Wireless (Wi-Fi) Ethernet Networking, USB and RS-232 Comm Ports 
>> 16 True Differential or 32 Single Ended Universal Analog Input Channels
>> Analogue Inputs: Thermistors, Thermocouples, RTD Sensors (2 Wire) and 4-20mA Signals
>> Programmed Using LCD Display and 4 Integral Buttons or Software
>> 4 Alarm Outputs and 4 Pulse Rate/Counter Inputs (64kHz and 100Hz)
>> ±(0.05% Readings + 0.025% Range) Accuracy
>> Standard Sampling Rate up to 10 Hz with 20 Hz and 100 Hz Sampling Rates on 2 Channels
>> Stores up to 1.8 Million Readings on Removeable SD Card
>> External Input Sensors (Sold Separately)
>> Includes USB Cable, 6 Alkaline Batteries, 4 Current Shunt Resistors, Wall Bracket, User Manual and SquirrelView Software for Setup and Data Download

Squirrel 2040 Wifi Specifications

Data Channels Single-Ended: 32 Analog Channels
Differential: 16 Analog Channels
(Single-Ended or Differential Available, Not Both)
Analog to Digital Converter: 2 
3 or 4 Wire: 0
Pulse: 4 (2 x 64kHz & 2 x 100Hz)
Event (Digital): 8 State Inputs or 1 8-Bit Binary
High Voltage: 2
Temperature: 2 (Internal)
Analog Inputs Accuracy (Voltage & Resis.): ±(0.05% + 0.025% Range)
Common Mode Rejection: 100dB
Input Impedance: > 1M Ω
Linearity: 0.015%
Series Mode Line Rejection: 50/60Hz 100dB
Sampling Rate 1 Second to 24 Hours (1 Sec. Increments)
2, 5, 10, 20* or 100* Hz
* With Mains Rejection Off
(20Hz or 100Hz Only Available on 2 Channels)
Analog to Digital Conversion Type: Sigma - Delta 
Resolution: 24 Bit
Alarm Outputs 4 (Open Drain FET - 18.0 Volts - 0.1 Amps)
Power Output External Devices: Regulated 5 Volts DC at 50 mA or Logger Supply Voltage (100mA)
Time and Date Built-In Clock in 3 Formats
Scaling Data Displays Readings in Preferred Engineering Units
Data Storage Capacity Internal: 16MB Storing up to 1.8 Million Samples/Readings 
External: 1 GB SD Card (Removeable)
DC Voltage Ranges -0.075 to 0.075 Volts
-0.15 to 0.15 Volts
-0.3 to 0.3 Volts
-0.6 to 0.6 Volts
-0.6 to 1.2 Volts
-0.6 to 2.4 Volts
-3.0 to 3.0 Volts
-6.0 to 6.0 Volts
-6.0 to 12.0 Volts
-6.0 to 25.0 Volts
4.0 to 20.0 Volts*
4.0 to 40.0 Volts*
4.0 to 60.0 Volts*
* High Voltage (Max of 2 Can be Selected)
Current Range Differential: 4 to 20mA, -30mA to 30.0mA 
(Requires External 10Ω Shunt)
Thermocouple Range J-Type: -200°C to 1200°C (-328°F to 2192°F) 
K-Type: -200°C to 1372°C (-328°F to 2501°F)
N-Type: -200°C to 1300°C (-328°F to 2372°F) 
R-Type: -50°C to 1768°C (-58°F to 3214°F) 
S-Type: -50°C to 1768°C (-58°F to 3214°F) 
T-Type: -200°C to 400°C (-328°F to 752°F) 
(Differential and Single Ended)
Resistance Range 2-Wire: 0 to 1,250Ω, 0 to 5,000Ω, 0 to 20,000Ω, 0 to 300,000Ω
Thermistor Range U & Y-Type: -50°C to 150°C (-58°F to 302°F)
Pt100/1000 Range
-200°C to 850°C (-328°F to 1562°F)
Calculated Channels Up to 16 Virtual Channels Derived from Physical Input Channels
Resolution Up to 6 Significant Digits
Communication RS-232: Serial Port - Auto Bauding to 115,200 Baud
Ethernet: 10/100 Base T (TCP/IP)
USB: 1.1 and 2.0 Compatible
Other: GSM, WiFi and PSTN Modems (External Attachments)
Wireless Communication Wi-fi: 802.11b, 2.4GHz, 1 to 14 Channels 
Security: Open, WEP (64 or 128bit Encryption), WPA or WPA2 / 802.11i 
Network: Infrastructure Only with specified SSID, or any Network with no SSID
External Mains Power Required for Wi-fi
Power Supply Internal: (6) AA Alkaline Batteries
External: 10 to 18 Volts DC Power Supply
NOTE: Reverse Polarity and Over-Voltage Protected
Power Consumption Sleep Mode: 600 µA
Logging: 40 to 130 mA
Display/Keypad 2 Line x 20 Characters LCD Display
Display Functions Battery State and External Power Indicator
Keypad Lock
Meter Any Channel or Alarm
Select up to 6 Pre-Stored Setups
Status/Diagnostics/Memory/Time and Date
Download to MicroSD Card
Enclosure ABS Material
Operating Modes >> Stop When Full
>> Overwrite
Operating Range Temperature: -30°C to 65°C
Humidity: 0 to 90% @ 40°C non-condensing
Standards Compliance CE
Weight 1.2 kilograms
Dimensions 23.5 cm x 17.5 cm x 0.95 cm
(235mm x 175mm x 95mm)


Squirrel 2040 Getting Started Guide (.pdf 1.5 MB)
Squirrel 2040 Logging Speed Guide (.pdf 180 KB)
Squirrel 2040 Ethernet Configuraton Guide (.pdf 400 KB)
Squirrel 2040 Ethernet Wireless and Wired Configuraton Guide (.pdf 400 KB)
Squirrel 2040 Technical Notes (.pdf 200 KB)
Squirrel Software Compatibility Guide (.pdf 28 KB)

Application Notes

Understanding the Differences Between State, Event and Pulse Datalogging. (.pdf 300KB)

Squirrel 2040 4F16 Data Logger w/ Wifi Connectivity Squirrel 2040 4F16 Data Logger w/ Wifi Connectivity
>> Built-in Wireless (Wi-fi) Ethernet Networking, USB and RS-232 Comm Ports
>> 16 Differential or 32 Single Ended Channels
>> (4) 20Hz and 100Hz Sampling Rate Channels
>> LCD Display, Alarms, and Removable SD Card
>> Includes USB Cable, Batteries, Shunt Resistors, User Manual and Software
Part #: SQ2040-4F16-WIFI
Call To Purchase


AA Lithium Batteries AA Lithium Batteries
>> 4 Pack
Quantity Price Each
1 - 4  
Part #: HWSB-LI
Grant Serial Ethernet Converter Grant Serial Ethernet Converter
>> Netport RS-232 Ethernet Converter
>> Converts RS232 Output to Ethernet
>> Allows the Logger to Connect to Ethernet Network
>> Requires Ethernet Network Connection
Part #: SQ20A801
Call To Purchase
Grant Modem Adapter Grant Modem Adapter
>> Remote Connection to Logger Using GSM Cellular Network
>> Operates on Dual Band Versions (900 MHz and 1800 MHz)
Part #: SQ20A802
Call To Purchase