Multi-function Air Quality Monitor For Home Use 9-in-1 Detector W/LED Display
Suitable For A Variety Of Indoor And Outdoor Activities, And Easy To Carry When Traveling. CO Concentrations Above 50PPM Trigger The Default Carbon Monoxide Alarm. The Alarm Frequency Increases As The Concentration Increases.
10in1 18in1 Air Quality Detector PM2.5 10 PM HCHO TVOC CO2 Formaldehyde Monitor
Tuya WIFI 15 in 1. Tuya WIFI 10 in 1. hope you could understand.
AVO Biddlle MEGGER 210600 Wire Cable Insulation Test Set 100/250/500/1000Volts
See the picture with the batteries. I fabricated a copper spacer out of copper foil and now the battery fits very snugly. I installed a fresh set of 6 alkaline AA cells. 1000, 500, 250 and 100 DC Volts.
DC0-300V 50/100/200/400A Isolated Current Voltage Meter Hall Ammeter Voltmeter
DC0-300V 50/100/200/400A Digital Current Voltage Meter Hall Ammeter Voltmeter
Current range: 50A, 100A, 200A, 400A (optional). Current resolution: 0.1A/0.1A/0.2A/0.2A. Current range: 50A/100/200A/400A. Do not run through your life so fast that you forget not only where you have been, but also where you are.
DC0-300V 50/100/200/400A Digital Current Voltage Meter Hall Ammeter Voltmeter
Current range: 50A/100/200A/400A. Current resolution: 0.1A/0.1A/0.2A/0.2A. Product Details. Power cable 1.