True RMS Digital Multimeter with Bluetooth Option and Built-in Flashlight LED you need one End Tray

you need one End Tray with a Drain of 6

2 Triple A (AAA) batteries

For more detailed information on applications with specific types of equipment

AQUAVITA Commercial Air Pump: Powerhouse Aeration for Demanding Applications

True RMS Digital Multimeter with Bluetooth Option and Built-in Flashlight LED you need one End TrayCompact 600v digital multimeter features quality construction, True RMS, optional Bluetooth, plus a built in flashlight to light up your work. The Sper Scientific 400002 and 400002BT multimeters are True RMS compact digital multimeters with double molded plastic housing and oversized high contrast 4000 counts LCD display. They are CAT III rated for 600V. The 400002BT model includes Bluetooth capability to view and save data on your iOS or Android