CR350

Name: CR350
Brand: Campbell Scientific
SKU: CR350
Availability: InStock

Measurement and Control Datalogger

CR350

Orderable

Measurement and Control Datalogger

Pricing

Configuration

No Additional ComsCR350-NAPart Number: 38440
w/900MHZ RadioCR350-RF407Part Number: 38442
w/1W 900MHz Radio for use in US/CanadaCR350-RF452-NAPart Number: 41019
w/Wireless ModemCR350-WIFIPart Number: 38441
w/4G LTE CAT1 ATT Provisioned for AT&T North AmericaCR350-CELL205-ATPart Number: 42372
w/4G LTE CAT1 VZW Provisioned for Verizon USCR350-CELL210-VPart Number: 42377
4G LTE CAT1 VZW Provisioned for Verizon US Static IPCR350-CELL210-VSPart Number: 42378
w/CELL215 w/CAT1 for EMEA No ProvisioningCR350-CELL215-NPPart Number: 38453
w/4G LTE CAT1 Telstra for Australia/NZ No ProvisioningCR350-CELL220-NPPart Number: 38452
w/4G CAT M1 NB-IoT No ProvisioningCR350-CELL230-NPPart Number: 41018

Qty

Select a configuration to add to your quote

Model:: CR350
Item Number:: CR350
Warranty:: 3 years

Overview

The CR350 is a multi-purpose, extremely low-power, compact measurement and control data logger. This entry-level data logger, with its rich instruction set, can measure most hydrological, meteorological, environmental, and industrial sensors. The CR350 concentrates and makes data available over varied networks, with delivery using your preferred protocol. The CR350 also performs automated on-site or remote decision-making for control and M2M communications. This data logger is ideal for small applications requiring long-term, remote monitoring and control.

The following outlines the primary differences between the CR310 and CR350 dataloggers:

The CR310 and CR350 offer removable connectors.
The CR310 includes a 10/100 Ethernet connection.
The CR350 has two independent RS-232/RS-485 ports and USB-C.

The CR350 includes Wi-Fi, cellular, or the following radio options for different regions:

CR350-RF407: US and Canada
CR350-RF412: Australia and New Zealand
CR350-RF422: UK and EU
CR350-RF427: Brazil

Note: Campbell Scientific does not recommend the CR350 for use as a PakBus router in networks with more than 50 devices. Large arrays or string variables may also reach memory limits. For such applications, a CR1000Xe Measurement and Control Datalogger is recommended.

Key Advantages

Compact Data Logger with RS-485
Ideal for small applications

Technical Description

The CR350 is a low-powered data logger designed to measure sensors, analyze data, and store data and programs. A battery-backed clock assures accurate timekeeping. The on-board, BASIC-like programming language—common to all Campbell Scientific data loggers—supports data processing and analysis routines.

Terminal Descriptions

Two switched 12 V terminals (SW12V) for powering sensors or communications devices, 2100 mA
Two sensor excitation or continuous 0.15 to 5 V terminals (VX1, VX2) for sensor excitation or output control
Four multipurpose analog input terminals (SE1–SE4)
- Analog functions (SE1–SE4)
  - Analog inputs: 4 single-ended or 2 differential inputs with -100 to +2500 mV and ±34 mV ranges 24 bit ADC
  - 4 to 20 mA or 0 to 20 mA inputs (SE1, SE2 only)
- Digital I/O functions (SE1–SE4) consist of 3.3 V logic levels for:
  - High frequency counter (35 kHz)
  - Pulse width modulation
  - Interrupts and timer input
  - Period average (200 kHz, amplitude dependent)
Two pulse counting terminals (P_SW, P_LL)
- P_SW
  - Switch closure (150 Hz)
  - High frequency counter (35 kHz)
- P_LL
  - Low level ac (20 kHz)
  - High frequency counter (20 kHz)
Two control terminals (C1, C2): C terminals are software configurable for digital functions.
- Digital I/O functions consist of 5 V output and 3.3 V input logic levels for:
  - SDI-12
  - High frequency counter (3 kHz)
  - Switch closure (150 Hz)
  - General status/control voltage source 5 V; 10 mA @ 3.5 V
  - Interrupts
  - Serial asynchronous communications Tx/Rx pair

Benefits

Two dedicated SDI-12 terminals to expand SDI-12 sensor use
Extremely low current requirements
Two dedicated RS-232/RS-485 terminals to support smart sensors or modems
Easy setup with PC software and USB-C connectivity
Ability to measure analog and digital sensors with confidence
Trusted Campbell Scientific quality, including integral surge and ESD protection
Integrated radio option to network wirelessly to another node or internet gateway
CR350-WIFI ideal for short-range, wireless IP communications
Removable terminal block for easy wiring
Ability to communicate anywhere using built-in cellular or satellite peripherals
Integrated 12 V battery solar charge regulator to charge batteries
Flexibility to connect with PakBus, Modbus, DNP3, GOES, and other standard communications protocols
Multiple general-purpose I/O and programmability to analyze and control measurement acquisition
Event-driven communications and physical outputs for notifications

Specifications

Operating Temperature Range: -40° to +70°C
Non-condensing environment
Maximum Scan Rate: 10 Hz
Case Material: High-impact-resistant polycarbonate, recycle code 7
Analog Inputs: 4 single-ended or 2 differential
(individually configured)
Pulse Counters: 8
(P_SW, P_LL, C1, C2, and SE1 to SE4)
Voltage Excitation Terminals: 2
(VX1, VX2)
Communications Ports: USB Type C 2.0
RS-232
RS-485
Switched 12 Volt: 2 terminals
Digital I/O: 7 terminals (C1, C2, P_SW, and SE1 to SE4) configurable for digital input and output
Includes status high/low, pulse width modulation, external interrupt, and communications functions. Exception: C2 and P_SW don’t do pulse-width modulation.
Analog Input Limits: -100 to +2500 mV
Analog Voltage Accuracy: Accuracy specifications do not include sensor or measurement noise.
±(0.04% of measurement + offset) at 0° to 40°C
±(0.1% of measurement + offset) at -40° to +70°C
ADC: 24-bit
Charge Terminal Characteristics (CHG+ and CHG-): Input from power converter or solar panel, typical
ES1 PS2 energy sources only
(Energy Source Class 1 [ES1] and Power Source Class 2 [PS2], as defined in Clauses 5 and 7 of IEC/AS/NZS 62368-1:2022)
16 to 32 Vdc
Hold current limit 1.1 A @ 20°C
Battery Terminal Characteristics (BAT+ and BAT-): Input from external battery, 7 Ah lead-acid, typical
Voltage input 12 Vdc only
Hold current limit 3.7 A @ 20°C
Internal Lithium Battery: 3 V coin cell CR2032X for battery-backed clock
6-year life with no external power source
Real-Time Clock Accuracy: ±3 min. per year
Internet Protocols: Ethernet, PPP, RNDIS, ICMP/Ping, Auto-IP(APIPA), IPv4, IPv6, UDP, TCP, TLS (v1.2), DNS, DHCP, SLAAC, NTP, Telnet, HTTP(S), FTP(S), SMTP/TLS, POP3/TLS, MQTT(S)
Communications Protocols: PakBus, PakBus Encryption, Modbus RTU/ASCII/TCP, DNP3, SDI-12, and others
CPU Drive/Programs: 50 MB serial flash
Data Storage: 50 MB serial flash
Idle Current Drain, Average: 0.5 mA
(@ 12 Vdc)
Active Current Drain, Average: < 1.5 mA
(@ 12 Vdc for 1 Hz scan with 1 analog measurement)
8 mA
(@ 12 Vdc with processor always on)
Dimensions: 16.3 x 8.4 x 5.6 cm
(6.4 x 3.3 x 2.2 in.)
Additional clearance required for cables and leads
Weight: 288 to 306 g
(0.64 to 0.68 lb) depending on communications option selected

CR350-RF407 Option

Radio Type: Frequency Hopping Spread Spectrum
(FHSS)
Output Power: 5 to 250 mW
(user-selectable)
Frequency: 902 to 928 MHz
(US, Canada)
RF Data Rate: 200 kbps
Receive Sensitivity: -101 dBm
Antenna Connector: RPSMA
(External antenna required; see www.campbellsci.com/order/rf407 for Campbell Scientific antennas)
Idle Current Drain, Average: 12 mA
(@ 12 Vdc)
Active Current Drain, Average: < 80 mA
(@ 12 Vdc)

CR350-RF412 Option

Radio Type: Frequency Hopping Spread Spectrum
(FHSS)
Output Power: 5 to 250 mW
(user-selectable)
Frequency: 915 to 928 MHz
(Australia, New Zealand)
RF Data Rate: 200 kbps
Receive Sensitivity: -101 dBm
Antenna Connector: RPSMA
(External antenna required; see www.campbellsci.com/order/rf412 for Campbell Scientific antennas)
Idle Current Drain, Average: 12 mA
(@ 12 Vdc)
Active Current Drain, Average: < 80 mA
(@ 12 Vdc)

CR350-RF422 Option

Radio Type: 868 MHz SRD 860 with Listen Before Talk (LBT) and Automatic Frequency Agility (AFA)
Output Power: 2 to 25 mW
(user-selectable)
Frequency: 863 to 870 MHz
(European Union)
RF Data Rate: 10 kbps
Receive Sensitivity: -106 dBm
Antenna Connector: RPSMA
(External antenna required; see www.campbellsci.com/order/rf422 for Campbell Scientific antennas)
Idle Current Drain, Average: 9.5 mA
Active Current Drain, Average: 20 mA

CR350-RF427 Option

Radio Type: Frequency Hopping Spread Spectrum
(FHSS)
Output Power: 5 to 250 mW
(user-selectable)
Frequency: 902 to 907.5 MHz/915 to 928 MHz
(Brazil)
RF Data Rate: 200 kbps
Receive Sensitivity: –101 dBm
Antenna Connector: RPSMA
(External antenna required)
Idle Current Drain, Average: 12 mA
(@ 12 Vdc)
Active Current Drain, Average: < 80 mA
(@ 12 Vdc)

CR350-RF452 Option

Radio Type: Frequency Hopping Spread Spectrum
(FHSS)
Output Power: 10 mW to 1,000 mW
(user-selectable)
Frequency: 902 to 928 MHz
RF Data Rate: 115.2 or 153.6 kbps
Receive Sensitivity: -108 dBm
(@ 115.2 kbps for 10^-4 BER)
-103 dBm
(@ 153.6 kbps for 10^-4 BER)
Antenna Connector: RPSMA
(External antenna required)
Idle Current Drain, Average: < 29 mA
(maximum @ 12 Vdc)
Active Current Drain, Average: < 84 mA
(maximum @ 12 Vdc)

CR350-WIFI Option

Operational Modes: Client or Access Point
Operating Frequency: 2.4 GHz, 20 MHz bandwidth
Antenna Connector: Reverse Polarity SMA
(RPSMA)
Antenna: pn 16005 unity gain (0 dBd), 1/2 wave whip, omnidirectional with articulating knuckle joint for vertical or horizontal orientation
Transmit Power: 7 to 18 dBm
(5 to 63 mW)

CR350-CELL205 Option

-NOTE-: The CR350-CELL205 option is not compatible with a Verizon cellular network.
Certifications: IC (Industry Canada)
10224A-201611EC21A
Cell Technologies: 3G
(UMTS/HSPA+)
4G
(LTE CAT-1)
3G Frequency Bands: 850, 1700/2100 (AWS), and 1900
4G Frequency Bands: 700, 850, 1700/2100 (AWS-1), 1900
Antenna Connector: SMA
(External antenna required; see www.campbellsci.com/order/cr350 for Campbell Scientific antennas)
Power Consumption - Idle: 14 mA
(average)
Power Consumption - Active: 75 mA
(average)
SIM Interface: 3FF (6 position/contacts)

Supports SIMs that require 1.8 or 3 V
Radio Output Power: 23 dBm on LTE
24 dBm on UMTS
27 dBm on EDGE
33 dBm on GSM
Radio Sensitivity Range: -99.5 to 110.5 dBm
(10 M)

CR350-CELL210 Option

-NOTE-: The CR350-CELL210 option is only compatible with a Verizon cellular network.
Cell Technologies: 4G
(LTE CAT-1)
4G Frequency Bands: 700, 850, 1700, 1900, 2100
Antenna Connector: SMA
(External antenna required; see www.campbellsci.com/order/cr350 for Campbell Scientific antennas)
Power Consumption - Low Power Mode: 5 mA
Power Consumption - Idle: 28 mA
(average)
Power Consumption - Active: 90 mA
(average)
SIM Interface: 3FF (6 position/contacts)

Supports SIMs that require 1.8 or 3 V
Radio Output Power: 23 dBm on LTE
Radio Sensitivity Range: -99.5 to 110.5 dBm
(10 M)

CR350-CELL215 Option

-NOTE-: The CR350-CELL215 option is intended for use in EMEA countries.
Cell Technologies: 2G
(GSM/GPRS/EDGE)
3G
(UMTS/HSPA+)
4G
(LTE CAT-1)
2G Frequency Bands: 900 and 1800 MHz
3G Frequency Bands: 850, 900, and 2100 MHz
4G Frequency Bands: 800, 850, 900, 1800, 2100, and 2600 MHz
Antenna Connector: SMA
(External antenna required; see www.campbellsci.com/order/cr350 for Campbell Scientific antennas)
Power Consumption - Idle: 14 mA
(average)
Power Consumption - Active: 75 mA
(average)
SIM Interface: 3FF (6 position/contacts)

Supports SIMs that require 1.8 or 3 V
Radio Output Power: 23 dBm on LTE
24 dBm on UMTS
27 dBm on EDGE
33 dBm on GSM
Radio Sensitivity Range: -99.5 to 110.5 dBm
(10 M)

CR350-CELL220 Option

-NOTE-: The CR350-CELL220 option is intended for use in Australia and New Zealand.
Cell Technologies: 3G
(UMTS/HSPA+)
4G
(LTE CAT-1)
3G Frequency Bands: 850 and 2100 MHz
(EC-21AUT)
850, 900, 1900, and 2100 MHz
(EC-21AU)
4G Frequency Bands: 700, 850, 1800, 2100, and 2600 MHz
(EC-21AUT)
700, 900, 1700, 1800, 1900, 2100, and 2600 MHz
(EC-21AU)
Antenna Connector: SMA
(External antenna required; see www.campbellsci.com/order/cr350 for Campbell Scientific antennas)
Power Consumption - Idle: 14 mA
(average)
Power Consumption - Active: 75 mA
(average)
SIM Interface: 3FF (6 position/contacts)

Supports SIMs that require 1.8 or 3 V
Radio Output Power: 23 dBm on LTE
24 dBm on UMTS
Radio Sensitivity Range: -99.5 to 110.5 dBm
(10 M)

CR350-CELL225 Option

-NOTE-: The CR350-CELL225 option is intended for use in Japan.
Cell Technologies: 4G
(LTE CAT-1)
4G Frequency Bands: 800 (lower), 800 (upper), 850+, 900, 1800, and 2100 MHz
Antenna Connector: SMA
(External antenna required; see www.campbellsci.com/order/cr350 for Campbell Scientific antennas)
Power Consumption - Idle: 14 mA
(average)
Power Consumption - Active: 75 mA
(average)
SIM Interface: 3FF (6 position/contacts)

Supports SIMs that require 1.8 or 3 V
Radio Output Power: 23 dBm on LTE
Radio Sensitivity Range: -99.5 to 110.5 dBm
(10 M)

CR350-CELL230 Option

Cell Technologies: LTE-Cat M, NB-IoT
Frequency Bands: LTE M B1/B2/B3/B4/B5/B8/
B12/B13/B18/B19/B20/
B25/B26/B27/B28/B66/B85
LTE NB-IoT B1/B2/B3/B4/B5/B8/
B12/B13/B18/B19/B20/
B25/B28/B66/B71/B85
Antenna Connector: SMA
(External antenna required; see www.campbellsci.com/order/cr350 for Campbell Scientific antennas)
Power Consumption - Idle: 23 mA average
(26 mA if GPS is on)
Power Consumption - Active: 50 mA average
(53 mA if GPS is on)
SIM Interface: 3FF (6 position/contacts)

Supports SIMs that require 1.8 or 3 V

Accessories

(22)

Common Accessories

(22)

Replacement Parts

(10)

Services

(1)

39613
CR350 Calibration with Documentation
The 39613 provides full bench testing and calibration of the CR350 Measurement and Control Datalogger to meet original specifications. This process includes replacement of the internal lithium battery and desiccant pack, as well as an update of the operating system to the newest version. The CR350 is then tested over our standard temperature range (-40° to +70°C). A NIST-traceable calibration certificate is provided that shows both the "as received" and "as returned" measurements. After this service is completed, the CR350 is returned to you with all the settings restored to the default, unless otherwise specified. If the CR350 requires repair, those costs will be added to the invoice. A Return Material Authorization (RMA) from Campbell Scientific is required for the 39613 service.
Orderable

Need Something Not Listed?

(CR350)

Don't see what you need from among these options? Download the complete configuration list below.

View all product configurations

Ships With

(7)

Similar Products

(3)

Compatibility

Sensors

With several channel types, the CR350 is compatible with nearly every available sensor. This includes analog output voltage (0 to 2.5 V) and current (0 to 20 mA or 4 to 20 mA) sensors, thermistors, and RTDs to name a few. It is also compatible with pulse or frequency output sensors such as anemometers, rain gauges, and flow meters. CR350 dataloggers are not capable of applying reverse excitation, and they cannot be used with some conductivity or soil matric potential sensors.

SDI-12, Modbus, and other serial sensors are supported with the RS-232 port and C1 and C2 as a Tx/Rx pair. The CR350 also supports true RS-232 and RS-485 on COM2 and COM3, along with a dedicated RS-232 DB9 port.

Measurement & Control Peripherals

The CR350 is compatible with low current and voltage solid-state relays but not with SDM or CDM devices.

Software

The CR350 series is compatible with CRBasic (version 3.6 or higher).

Enclosures

An ENC10/12 or ENC12/14 enclosure is adequate for most CR350-based systems.

Communications

The CR350 can communicate with a PC directly via its USB port. Compatible telemetry devices include our RS-485 converters, digital cellular gateways, RF telemetry, and satellite transmitters (HDR GOES, Argos, Meteosat, Iridium, and Inmarsat). Data can be viewed on an iOS or Android device (requires our free LoggerLink app), CD295 DataView II Display, or other third-party devices.

Data Logger Option	Communications Type	Integrated Communications Are Compatible with
CR350-WIFI	2.4 GHz, 802.11b/g/n	Most other Wi-Fi devices, such as the CR310-WIFI, CR6-WIFI, NL241
CR350-RF407	900 MHz FHSS	RF407, CR6-RF407, CR310-RF407, CR350-RF407, CRVW3-RF407
CR350-RF412	915 MHz FHSS	RF412, CR6-RF412, CR310-RF412, CR350-RF412, CRVW3-RF412
CR350-RF422	868 MHz SRD860 LBT+AFA	RF422, CR6-RF422, CR310-RF422, CR350-RF422, CRVW3-RF422
CR350-RF427	905/920 MHz FHSS	RF427, CR6-RF427, CR310-RF427, CR350-RF427, CRVW3-RF427
CR350-RF452	900 MHz FHSS, 1 Watt	RF452, CR6-RF452, CR350-RF452, CRVW3-RF452
CR350-CELL	IP, SMS, MQTT, and others	Options for multiple countries and carriers, including LTE-M and NB-IoT

Power

The CR350 uses an external power source and has a built-in charger/regulator. Intelligent power sourcing autoselects the highest voltage from three input sources (CHG, BAT, or USB) to operate in one of the following four modes:

UPS (recommended) - A 16 to 32 Vdc source, solar panel (SP10, SP20), or power converter (29796) is used to charge a 12 Vdc battery, such as our BP7 or BP12.
12 Vdc battery or other reliable 12 Vdc source
Charge only - DC power supply (16 to 32 Vdc)
USB - Powered over 5 Vdc USB port for setup, programming, and testing (will not charge battery or boost USB power to provide 12 Vdc to the switched battery terminal SW12)