Sense Energy Monitor with Solar – Track Electricity Usage and Solar Production in Real Time Meets Rigorous ETL/Intertek Safety Standards

$11.59

Sense Flex Home Energy Monitor

$29.99

Smart Home Energy Monitor | Vue - Real Time Electricity Monitor/Meter | Solar/Net Metering | (Monitor Only)

$35.13

WiFi Single Phrase Energy Meter with Clamp Electricity Power Consumption Monitor, Realtime Monitoring and Measurement, Remote Control

$45

Power Consumption Monitor Real Time Electricity Meter with Clamp for Store Applications AC90‑250V

$154

Practical Monitoring: Effective Strategies for the Real World

$18

Practical Monitoring: Effective Strategies for the Real World

$44.99

P3 International P4460 Kill A Watt EZ Electricity Usage Monitor , grey

$29.99

Necto Cellular Temperature & Humidity Monitor - No Monthly Fees and No WiFi Required - Instant Text/Email Alerts on Power Outage, Humidity & Temperature - Remote Monitoring Sensor for RV, Pet & Home

$9.98

P3 P4400 Kill A Watt Electricity Usage Monitor

$12.99

Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance

$28.99

Poniie PN1500 Portable Micro Electricity Usage Monitor Electrical Power Consumption Watt Meter (110V, 1500W)

$12.99

Electricity Usage Monitor, Briidea Power Consumption Watt Voltage Amp Meter Tester with 2 Outlets Electricity Analyzer Monitoring Device for Energy Saving

$19.99

Poniie PN2000 Plug-in Kilowatt Electricity Usage Monitor Electrical Power Consumption Watt Meter Tester w/Extension Cord

$57.99

Smart Metering Design and Applications (SpringerBriefs in Applied Sciences and Technology)

$11.96

Run with Power: The Complete Guide to Power Meters for Running

$4.99

Training and Racing with a Power Meter

$27.95

Lights On: The Non-Technical Guide to Battery Power when the Grid Goes Down

$39.99

GoveeLife Smart Air Quality Monitor with PM2.5, WiFi, Temperature & Humidity Sensors, LED Display, 2s Refresh, 2-Year Data Storage - For Home & Office

$178.99

X-Sense 2-in-1 Smoke and Carbon Monoxide Detector Alarm (Not Hardwired), 10-Year Battery-Operated Dual Sensor Fire & CO Alarm, Compliant with UL 217 & UL 2034 Standards, SC06

$34.16

Eyewitness: Electricity

$13.99

Ecosense EB100 EcoBlu, Home Radon Detector, Capture & Display Results Every 10 Minutes, Short & Long-Term Continuous Monitoring, Easy to Use

$32.19

Upgraded Watt Power Meter Plug Home Electrical Usage Monitor Consumption, Energy Voltage Amps Kill Tester with Backlight, Overload Protection, 7 Modes Display

$14.74

Frigga 4G/5G Real-Time Temperature Data Logger Reusable with Ultra-Low External Sensor -328°F ~ 212°F Wireless Remote Temperature Monitor 50000 Points High Accuracy Rechargeable,T72

$115.41

Poniie PN2500 Professional NEMA 5-15 Wi-Fi Wireless Level 1 EV Charger Pass-Through Power Usage Monitor (60-240V, 25Amp)

$14.79

Victron Energy SmartShunt 500 amp Battery Monitor (Bluetooth)

$76.29

kuman KW47-US Electricity Usage Monitor Plug Power Watt Voltage Amps Meter with Digital LCD, Overload Protection and 7 Display Modes for Energy Saving (NO-Backlight), White

$12.99

The Path of the Energy Manager: Comprehensive Energy Management Across the Globe (The Power Nexus)

$34.21

Tuya App WiFi Smart Power Energy KWh Meter Monitoring 3 Phase Single Phase with 120A CT Clamp Transformer (16MM Diameter Hole) for Smart Home Voltage Current Power Energy Consumption Monitor Meter…

$17.99

Training and Racing with a Power Meter: Third Edition

$17.03

Training and Racing with a Power Meter: Third Edition

$19.1

EMAY Sleep Oxygen Monitor with Built-in Recording Capability | Track Continuous Blood Oxygen Levels & Pulse Rate Overnight | Provides Sleep Report & Raw Data

$32.99

Garmin Rally XC100, Single-sensing Power Meter, Compatible with SHIMANO SPD Cleats

$49.99

Virtual Power: The Future of Energy Flexibility

$37.99

Pro Taper Wireless Hour Meter

$13.99

Digital Decibel Meter - Portable SPL Meter with Backlit LCD Display (35-130dB(A) Range) - MAX/MIN Data Hold - Digital dB Reader Meter for Home, Classroom, Workshop, and Office Use

$22.98

IDEAL Industries INC. 61-757 TightSight 600 Amp 600-Volt Digital Truerms AC/DC Clamp Meter

$29.99

Decibel Meter, Tadeto Digital Sound Level Meter Portable SPL Meter 30dB to 130dB MAX Data Hold with LCD Display Backlight A/C Weighted for Home Factories

$26.99

Decibel Meter, Protmex Digital Sound Level Meter Portable SPL Meter 30-130dB with Temperature Humidity Measuring MAX/MIN Data Hold Large LCD Screen Backlight Auto Shut-down A Weighted for Home Factory

$47.99

Instek GPM-8310 - Digital Power Meter with LAN/GPIB

$37.99

The 11 Week Energy Program: 'How to deliver an effective energy assessment' (Energy Management)

$80.2

Garmin Rally RS100, Single-sensing Power Meter, Compatible with SHIMANO SPD-SL Cleats

$15.99

AC110V 220V 80A Tuya App Smart Two-Way Bilateral WiFi Energy Meter with 2PCS 80A CT Current Transformers Clamps Sensors KWh Power Eenrgy Electricity Consumption Monitor Meter Voltmeter Ammeter

$407.77

Extech AN250W Airflow Meter with Connectivity to ExView App

$344.99

Runleader Digital Hour Meter for Lawn Mower Generator Motocycle Farm Tractor Marine Compressor ATV Outboards Chainsaw and Other AC/DC Power Devices (1)

$13.99

Unix Power Tools

$28.3

Etekcity Digital Clamp Meter Multimeter AC Current and AC/DC Voltage Tester with Amp, Volt, Ohm, Continuity, Diode and Resistance Test, Auto-Ranging, Red, MSR-C600

$49.99

Smart Counter Retail People Counter with Display - Infrared & Wireless, Battery Operated & Protected from Unauthorized Reset, Data Storage, Hourly & Daily Statistics

$115

Tech-Edge 326-KWP iSeries Tank Systems Monitor

$113

Runleader Digital LCD Maintenance Hour Meter for Small Engine,Waterproof Design,Applicable to Gas Engine Powered Lawn Mower Generator Compressor Motorcycle ATV Outboard Motor Chainsaw etc.

$17.99

Energy Management Handbook

$119.49

Shorting the Grid: The Hidden Fragility of Our Electric Grid

$13.45

Shorting the Grid: The Hidden Fragility of Our Electric Grid

$16.38

Shorting the Grid: The Hidden Fragility of Our Electric Grid

$105

ecobee Smart Sensor 2 Pack - Comfort, Security, Energy Savings - Smart Home - Compatible with ecobee Smart Thermostats for Home

$219.99

Smart Air Quality Monitor – Know your air, Works with Alexa

$249.99

Taylor Wired Digital Indoor/Outdoor Thermometer

$27.99

Smart Oil Gauge - Wi-Fi Heating Oil Tank Gauge with Smart Monitoring - Fuel Tank Gauge Compatible with Alexa - Designed for 275/330/500/550 Gallon Tanks (Vertical/Horizontal)

$9.79

ETCR5000 Power Quality Analyzer 3 Phase Multi-Functional Power Quality Logger with ETCR040B Ф40mm Current Clamp Sensor 4PCS Range 0.10A~100A

$430.95

EMAY Portable ECG Monitor | Record ECG and Heart Rate Anytime Anywhere | Stand-Alone Device with LCD Screen and Storage | No Subscription Required

$37.52