Skip to Main Content
  • Instrumart
Instrumart logo
  • Products
  • Brands
  • Applications
  • Lab
  • Blog
  • Account
  • Email Us
  • 1-800-884-4967
  • What can we help you find?

    Can’t find what you’re looking for? Contact one of our engineers today. We’re open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET.
    • 1-800-884-4967
    • Email Us
    • Live Chat

Extech Lithium Batteries

Replacement lithium batteries for use with the Extech 42260/42270 data loggers.

Extech Lithium Batteries
Extech Lithium Batteries
$38.49 Found a better price? Let us match.

View Company Reviewsby Trustpilot
Part Number
  • 42299
Manufactured
  • By Extech
Includes
  • FREE Ground Shipping on orders of $1,000 or more
  • FREE Lifetime Tech Support
Availability
  • 1 in stock
Questions?
Call 1-800-884-4967 or email sales@instrumart.com. Open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET.
Trustpilot

Overview

Features

  • 3.6V lithium batteries
  • Pack of 2

This product is an accessory for the following products:

Extech 42270 Data Loggers
Extech 42270 Data Loggers

Temperature and temperature/humidity data loggers record up to 16,000 readings.

Starting at $138.59
Extech RHT10 Humidity and Temperature Data Logger
Extech RHT10 Humidity and Temperature Data Logger

Humidity and temperature data logger with USB interface for easy set-up and data download.

Mfg. has stock
$94.99
Extech RHT20 Humidity & Temperature Data Logger
Extech RHT20 Humidity & Temperature Data Logger

Record up to 16,000 readings for RH/Temp with user-programmable sample rate.

In Stock
$157.99
Extech RHT50 Data Logger
Extech RHT50 Data Logger

Records humidity, temperature and atmospheric pressure and data logs up to 10,000 readings.

$184.79
Extech TH10 Temperature USB Data Logger
Extech TH10 Temperature USB Data Logger

Logs temperature readings with a user programmable sample rate.

Mfg. has stock
$70.39
Extech 407760 USB Sound Level Data Logger
Extech 407760 USB Sound Level Data Logger

High accuracy sound-level data logging of up to 129,920 records.

RETIRED
Extech MO280-RK-i7 Thermal Imaging Technician's Kit
Extech MO280-RK-i7 Thermal Imaging Technician's Kit

A complete moisture solution for the restoration contractor.

RETIRED
Extech MO290-RK-i5 Water Restoration Contractor Kit
Extech MO290-RK-i5 Water Restoration Contractor Kit

A complete solution kit with USB data logger for the restoration contractor.

RETIRED

Need Help? Call a Temperature engineer at 1-800-884-4967

We're open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET

Rhys D. headshot Rhys D.
Applications Engineer
Shawn D. headshot Shawn D.
Senior Applications Engineer
20 years at Instrumart
Dwight M. headshot Dwight M.
Senior Applications Engineer
28 years at Instrumart
Ron J. headshot Ron J.
Temperature Engineering Lead
29 years at Instrumart
Luke M. headshot Luke M.
Applications Engineer
5 years at Instrumart
David S. headshot David S.
Applications Engineer
Alex A. headshot Alex A.
Senior Applications Engineer
19 years at Instrumart
Rhys D. headshot Rhys D.
Applications Engineer
Shawn D. headshot Shawn D.
Senior Applications Engineer
20 years at Instrumart
Dwight M. headshot Dwight M.
Senior Applications Engineer
28 years at Instrumart
Ron J. headshot Ron J.
Temperature Engineering Lead
29 years at Instrumart
Luke M. headshot Luke M.
Applications Engineer
5 years at Instrumart
David S. headshot David S.
Applications Engineer
Alex A. headshot Alex A.
Senior Applications Engineer
19 years at Instrumart
Rhys D. headshot Rhys D.
Applications Engineer

Recently Viewed

Extech Lithium Batteries
Extech Lithium Batteries
United States Canada Mexico
Shop
Products
Brands
Applications
Support
Customer Service
Ask a Question
Live Chat
Track Order
Fraud Prevention
Financing
Our Company
Blog
About Us
Contact Us
Jobs
Travel Information
Our Team
Privacy Policy
Accessibility Statement
Connect
1-800-884-4967
sales@instrumart.com
Instrumart
35 Green Mountain Dr
S Burlington, VT 05403 US
Mo-Th 8:00am to 5:30pm ET
Fr 8:00am to 5:00pm ET
Join Us on Facebook
Follow Us on X

Instrumart is a member of a family of industrial stores

Instrumart Compressor World Pump World BioPharm World Filtration World Motion World Qualitrol Engineered Solutions Wholesale Air Pipe
© Instrumart 2025

Family of Industrial Stores

Welcome to our family of stores, your go-to source for a wide selection of commercial and industrial products in the flow control and automation sectors. Each store features a curated range of specialized industrial solutions, with many items designed to complement each other, ensuring you can find everything you need for your specific application. Explore the stores below to discover our extensive product offerings for your business needs.

  • Instrumart

    Shop Industrial and Laboratory Instruments.

    Shop Now!
  • Compressor World

    Shop Compressed Air Equipment.

    Shop Now!
  • Pump World

    Shop Industrial, Water, and Waste Water Pumps.

    Shop Now!
  • BioPharm World

    Shop Sanitary Process Solutions and Products.

    Shop Now!
  • Filtration World

    Shop Industrial Filters.

    Shop Now!
  • Motion World

    Shop Motion Control and Process Automation Systems.

    Shop Now!
  • Qualitrol

    Shop Remanufactured or Repair Automation Products.

    Shop Now!
  • Engineered Solutions

    Shop Custom Engineered and Manufactured Systems.

    Shop Now!
  • Wholesale Air Pipe

    Shop Air Piping.

    Shop Now!