Check the listing for details. 4MB Campbell Scientific CR23X Datalogger - Extended Temp - Fully Tested. Condition: Seller refurbished. Listed at 265.65 USD. Campbell Scientific CR23X Micrologger-- Includes Campbell Scientific Charging Base ( MSRP $500 ) & Power Plug --Updated to the latest Operating System: CR23X_STD_19.OBJFull bench testing and the bench report will be includedNew Internal lithium batteryTemperature testing4mb or 2mb Memory30 day WarrantyNOTE: I have a number of these and they come in two basic colors (see images). Please keep in mind that regardless of the color, each logger has undergone the same rigorous bench testing process and is ready to be deployed.To my knowledge, these are the only CR23X being sold on eBay that have been tested, are completely refurbished and include a warranty (30 days from date of sale). Each CR23X has been updated with the latest available Campbell Operating System. This Micrologger is certified to be working within the original factory specifications of ±0.1% of the full scale range. The internal lithium ion battery and desiccant packs have been replaced. The refurbishing and certification process is critical for accurate measurements, and credible, reliable data.Detailed Description The CR23X Micrologger is a portable, self-contained package that can store over 1,000,000 data points. It consists of measurement and control electronics, communication ports, a keyboard, 2-line alphanumeric display, and a battery-backed clock. The CR23X measures most sensor types directly, communicates, reduces data, controls external devices, and stores both data and programs in either non-volatile Flash memory or battery-backed SRAM. The CR23X is a self-contained, rugged data collection platform with an integral, 2-line alphanumeric display, a battery-backed, real-time clock and 4M of nonvolatile data storage included. The Logger being offered comes complete with a 12vdc power plug, removable terminal strips and a bench log outlining the functional status as well as the currently installed Operating System. Specifications Analog Inputs 24 single-ended or 12 differential, individually configuredPulse Counters 4Switched Voltage Excitations 4Control/Digital I/O Ports 8Continuous Analog Outputs 2Serial I/O Port (CS I/O) 1RS-232 Port 1Scan Rate 100 HzBurst Mode 1500 HzAnalog Voltage Resolution To 0.33 uVA/D Bits 15Programming EdlogData Storage Mixed Array, TableTelecommunications Standard, Modbus, AlertStandard Operating Temperature Range -25° to +50°CExtended Operating Temperature Range -40° to +80°CCorrected Display Temperature -20° to +40°CSurvival Display Temperature -40° to +85°C This CR23X is ready to be deployed. I have other Campbell Scientific hardware and other related equipment listed in separate auctions. Additionally, I have a wide variety of related items that have not been listed. If you need any other sensors, power supplies, communications equipment or anything else to complete your data collection system, please ask, I may be able to assist. You will receive a shipping discount when multiple items can be combined. Thank you for considering our productsTake a moment to read the following to ensure a smooth experience 1. Descriptions:Colors can vary and provided dimensions are approximate, if either are critical, please message us so we can confirm. 2. Condition:Review the provided photos carefully. We will usually call attention to any damage, but If you have concerns about an item's condition, please message us so we can confirm. 3. Shipping and Handling:A trackable shipping label is produced within hours of a sale. We can't control delays with the carriers we use. Please track your package and let us know if any issues arise. 4. Returns and Exchanges:We accept returns within 30 days unless otherwise stated within a listing. Returns must be in arrival condition and shipping costs are the buyer's responsibility, except in cases of carrier damage. 5. Customer Satisfaction:Your satisfaction is our priority. If you encounter an issue with your order, please contact us before leaving feedback. We will work to resolve any problems promptly. 6. Communication:We typically respond within minutes of receiving an eBay message. We try to keep it personal, so if you have a special need, let us know, we'll do what we can to accommodate. We look forward to your business