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CR300 Measurement and Control Datalogger

Updated:2025-03-13

Brand: Campbell
Model: CR300
Description: The CR300 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
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Product Details

CR300 Measurement and Control Datalogger Description：

User's Manual Getting Started Guide

The CR300 is a multi-purpose, compact measurement and control data logger. This small, low-cost, high-value data logger offers fast communications, low power requirements, built-in USB, and excellent analog input accuracy and resolution. The CR300 can measure most hydrological, meteorological, environmental, and industrial sensors. It concentrates data, makes it available over varied networks, and delivers it using your preferred protocol. It also performs automated on-site or remote decision making for control and M2M communications. The CR300 is ideal for small applications requiring long-term, remote monitoring and control.

The CR300 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.

The CR300 wiring panel includes a switchable 12 V terminal, and analog grounds dispersed among six analog terminals.

CR300 Measurement and Control Datalogger Benefits and Features：

Connects directly to a computer's USB port

Differentiates even slight changes in data values with higher resolutions measurements (24 bit Adc)

Provides simple serial sensor integration and measurement with SDI-12 and/or RS-232

Supports full PakBus networking

Includes embedded web page for direct connection via web browser

CR300 Measurement and Control Datalogger Specifications：

Operating Temperature Range	? -40° to +70°C (standard) ? Non-condensing environment
Maximum Scan Rate	10 Hz
Case Material	Powder-coated aluminum
Analog Inputs	6 single-ended or 3 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 Micro B ? RS-232
Switched 12 Volt	1 terminal
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 communication functions. Exception: The SE4 terminal doesn't do external interrupt.
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
Power Requirements	16 to 32 Vdc for charger input (CHG) (Current limited to 0.9 A maximum for power converter or solar panel input.)
Power Requirements	10 to 18 Vdc for external batteries (BAT)
Real-Time Clock Accuracy	±1 min. per month
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
Communication Protocols	PakBus, Modbus, DNP3, SDI-12, TCP, UDP, and others
CPU Drive/Programs	80 MB serial flash
Data Storage	30 MB serial flash
Idle Current Drain, Average	1.5 mA (@ 12 Vdc)
Active Current Drain, Average	? 5 mA (@ 12 Vdc for 1 Hz scan with 1 analog measurement) ? 23 mA (@ 12 Vdc with processor always on)
Dimensions	13.97 x 7.62 x 4.56 cm (5.5 x 3.0 x 1.8 in.) Additional clearance required for cables and leads.。
Weight	242 to 250 g (0.53 to 0.55 lb) depending on communication option selected
CR300-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	200kbps
Receive Sensitivity	-101 dBm
Antenna Connector	RPSMA
Idle Current Drain, Average	12 mA (@ 12 Vdc)
Active Current Drain, Average	< 80 mA (@ 12 Vdc)
CR300-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	200kbps
Receive Sensitivity	-101 dBm
Antenna Connector	RPSMA
Idle Current Drain, Average	12 mA (@ 12 Vdc)
Active Current Drain, Average	< 80 mA (@ 12 Vdc)
CR300-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	10kbps
Receive Sensitivity	-106 dBm
Antenna Connector	RPSMA
Idle Current Drain, Average	9.5 mA
Active Current Drain, Average	20 mA
CR300-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	200kbps
Receive Sensitivity	–101 dBm
Antenna Connector	RPSMA
Idle Current Drain, Average	12 mA (@ 12 Vdc)
Active Current Drain, Average	< 80 mA (@ 12 Vdc)
CR300-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)
CR300-CELL205 Option
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
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)
CR300-CELL210 Option
Cell Technologies	4G（LTE CAT-1）
4G Frequency Bands	700, 850, 1700, 1900, 2100
Antenna Connector	SMA
Power Consumption - Low Power Mode	5 mA
Power Consumption - Idle	35 mA
Power Consumption - Active	70 mA
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)
CR300-CELL215 Option
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
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)
CR300-CELL220 Option
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
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)
CR300-CELL225 Option
Cell Technologies	4G（LTE CAT-1）
4G Frequency Bands	800 (lower), 800 (upper), 850+, 900, 1800, and 2100 MHz
Antenna Connector	SMA
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)