Cathodic Protection Data Logger for CP Coupons

Tiny, yet highly capable, the CorTalk uDL2 provides comprehensive data measurement and logging of coupon status in CP systems. The device provides reliable, accurate measurement of AC current density, coupon DC current, a range of potential measurements and more. The device’s rechargeable battery provides up to four months of service and up to 2,000,000 readings on a single charge.

Periodic field surveys of cathodic protection systems can’t identify frequent, short-term events that can seriously impact pipeline integrity. MOBILTEX data loggers solve this challenge with pocket-sized, highly accurate devices that are designed to be quickly installed inside rectifiers and test stations to measure and record critical performance parameters from the Cathodic Protection system.

Each device offers a wide range of configurable settings that includes sample rate, current measurement ranges, time, geo-location and more. A tough enclosure, combined with durable components provides reliable operation in the harshest of operating conditions, while a long-lasting rechargeable battery ensures months of operation.

Out of sight designCompact units fit inside most standard CP test stations
Maximum battery life Internal rechargeable batteries provide up to six months of continuous operation
Instantly view current dataLCD display for local measurement monitoring
Multiple memory optionsUp to 2,000,000 readings and a DC voltage waveform capture mode which samples at rate of 10 times per second
Easy to useFast, simple device configuration, data retrieval and charging via USB
Engineered to withstand the toughest conditionsLightning and surge protection, IP65 rated with broad operating temperature range ( -20°C to +60°C [ -4°F to +140°F ] )


Operating Temperature-20° to +60° C (-4° to +140° F)
Storage Temperature-40° to +70° C (-40° to +158° F)
Maximum Altitude5000 meters above sea level
Humidity0 to 100% RH non-condensing
Physical + Power
Weight75 grams (2.7 oz)
Size89mm x 40mm x 18mm (3.5” x 1.6” x 0.72”)
Power SourceRechargeable Internal Li-Ion (Not user replaceable)

Documents & software

MOBILTEX CorTalk uDL1 & uDL2Product Brochure ENGLISHPDF
MOBILTEX CorTalk uDL1 uDL2 ESProduct Brochure SPANISHPDF
MOBILTEX CorTalk uDL2 ManualCorTalk uDL1 Manual 1.07PDF
uDL1/2 Install Pack v1.0.0.16aConfiguration Application, Firmware and Drivers (uDL2 firmware v1.12)ZIP
uDL2 Config Apple iOS AppDownload from iTunesLink
uDL2 Config Android AppDownload from Play StoreLink
CorTalk Full Install Pack v1.0.0.18Download ZIP fileZIP
LTE Swap Apple iOS AppDownload from iTunesLink
LTE Swap Android AppDownload from Play StoreLink
CorView Apple iOS AppDownload from iTunesLink
CorView Android AppDownload from Play StoreLink

Frequently asked questions

uDL2 FAQ is in development

Please check back soon


Smiling CP expert with headset and computer beside him


Call toll free: 1 (844) 689 3282

Our industry-leading Sales, Technical Support, and Service teams are ready to take you from product selection to initial set-up and continue to provide dedicated support throughout the product lifecycle.