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HOBO Manuals & User Guides

HOBO, manufactured by Onset, offers a wide range of data loggers and monitoring solutions for measuring temperature, humidity, water levels, and other environmental conditions.

Tip: include the full model number printed on your HOBO label for the best match.

About HOBO manuals on Manuals.plus

HOBO is the flagship line of data loggers manufactured by Onset Computer Corporation, a global leader in data-based monitoring solutions. Since 1981, Onset has designed and manufactured its products in the United States, providing reliable and accurate tools for environmental research, building performance analysis, and water quality monitoring. The HOBO product family includes USB, Bluetooth, and web-enabled data loggers that measure parameters such as temperature, relative humidity, light, energy, and water levels.

Widely used by researchers, energy auditors, and facility managers, HOBO data loggers are known for their durability and ease of use. Recent innovations include the HOBO MX series, which utilizes Bluetooth Low Energy technology to transmit data wirelessly to mobile devices via the HOBOconnect app. From monitoring underwater ecosystems to tracking indoor climate conditions, HOBO provides the data necessary to make informed decisions and verify compliance with industry standards.

HOBO manuals

Latest manuals from manuals+ curated for this brand.

HOBO MX20 Water Level Logger User Guide

July 29, 2026
HOBO MX20 Water Level Logger Models MX20-01 (30-foot (9.1-m) depth) and MX20-01-Ti (30-foot (9.1-m) depth/Titanium) MX20-02 (100-foot (30.5- m) depth) and MX20-02-Ti (100-foot (30.5-m) depth/Titanium) MX20-03 (250-foot (76.2- m) depth)…

HOBO MX2502 MX Underwater PAR Data Logger User Manual

July 15, 2026
HOBO® MX Underwater PAR Data Logger (MX2502) Manual MX2502 MX Underwater PAR Data Logger The HOBO MX2502 PAR/Temp/Tilt Data Logger measures underwater photosynthetically active radiation (PAR), temperature, and tilt in…

HOBO MX801 Series Logger Housing-2 User Guide

September 9, 2025
HOBO MX801 Series Logger Housing-2 Specifications Materials: PVC, Stainless steel, Clevis pin with wire retainer, Rubber Buna-N O-rings Weight: 415 g (0.91 lb.) Dimensions: 26.2 cm x 7.1 cm (10.3…

HOBO MX20L-04 Water Level Data Logger User Guide

January 22, 2025
HOBO MX20L-04 Water Level Data Logger The HOBO MX20L Water Level Logger monitors changing water levels in a wide range of settings, including streams, lakes, wetlands, tidal areas, and groundwater.…

HOBO MX20L Water Level Logger User Guide

January 12, 2025
HOBO MX20L Water Level Logger Product Information Product: HOBO MX20L Water Level Logger Models: MX20L-01 Required Items: Bluetooth and iOS, or AndroidTM, or a Windows computer with Bluetooth Specifications Pressure…

HOBO MX20L-01 Water Level Logger User Guide

January 4, 2025
HOBO MX20L-01 Water Level Logger Product Information Model: HOBO Water Level Logger Pressure and Water Level Measurements: MX20L-01 Operating Range: 0 to 207 kPa (0 to 30 psia); approximately 0…

HOBO MX20 Water Level Logger User Guide

manual
Comprehensive user guide for the HOBO MX20 Water Level Logger, covering specifications, deployment, data downloading, and maintenance for accurate water level monitoring.

HOBO® MX Gateway (MXGTW1) Quick Start Guide

quick start guide
Quick start guide for setting up and deploying the HOBO MX Gateway (MXGTW1) with HOBOconnect and HOBOlink mobile applications. Includes instructions for app download, power up, account creation, gateway setup…

HOBO Water Temp Pro v2 (U22-001) Quick Start Guide

Quick Start Guide
Quick start guide for setting up and deploying the HOBO Water Temp Pro v2 (U22-001) data logger from Onset Computer Corporation. Includes instructions for software setup, logger connection, deployment, and…

HOBO RXW Pulse Input Sensor Quick Start Guide

Quick Start Guide
This quick start guide provides instructions for setting up and installing the HOBO RXW Pulse Input Sensor (RXW-UCx-xxx) with the HOBOnet Wireless Sensor Network. Learn how to add a sensor…

HOBO Pendant Temperature/Light Data Logger UA-002-64 Manual

Manual
Comprehensive user manual for the HOBO Pendant Temperature/Light Data Logger (UA-002-64) by Onset. Covers specifications, deployment, operation, connecting to a computer, light measurement, protection, and battery replacement for this robust,…

RX3000 Remote Monitoring Station

Owner's Manual
RX3001-00-01, RX3002-00-01, RX3003-00-01, RX3004-00-01, RX3000 Remote Monitoring Station, RX3000, Remote Monitoring Station, Monitoring Station, Station

MX2201 Pendant MX Temp and Light Logger

Datasheet
MX2201, MX2202, MX2201 Pendant MX Temp and Light Logger, Pendant MX Temp and Light Logger, MX Temp and Light Logger, Temp and Light Logger, Light Logger, Logger

HOBO manuals from online retailers

HOBO support FAQ

Common questions about manuals, registration, and support for this brand.

  • What app is required to configure HOBO MX series data loggers?

    You need the HOBOconnect app, which is available for iOS, Android, and Windows devices, to communicate with and configure HOBO MX Bluetooth loggers.

  • How do I wake up a HOBO water level logger?

    To wake the logger or activate Bluetooth, use the included magnetic fob and hold it against the 'WAKE' magnet icon on the logger.

  • Do HOBO water level loggers require a vent tube?

    No, HOBO MX20L water level loggers use an absolute pressure sensor and do not require vent tubes or desiccants, making them easier to maintain.

  • How do I compensate for barometric pressure in water level data?

    You can use a separate HOBO logger deployed in the air as a barometric reference, or import a barometric pressure file into the HOBOconnect Water Level Data Assistant to compensate for atmospheric changes.