What's in the box:

Digital Din-Rail LED Voltage Ammeter Current Meter Voltmeter AC80-300V 0.2-99.9A Dual Display (White)

Features:
Display the AC voltage and current simultaneously by LED digital tube.
Din-rail installation and easy measurement, just connect to power and lead the wire through the hole.
Wide voltage and current measurement range.
Used to monitor the operation situation of appliances.

Specifications:
Measurement range: AC 80-300V 0.2-99.9A
Power supply: < 0> Installation: Din-rail
Accuracy: 1% 2digit
Measurement speed: about 2 times per second
Display type: 0.5" LED digital tube
Display size: 5 * 4cm / 2 * 1.6in
Installation width: = 3P (DZ47/C45, air switch position)
Product size: 8 * 5.5 * 6.5cm / 3.1 * 2.2 * 2.6in
Product weight: 124g / 4.4oz
Package size: 8.8 * 7.4 * 6.1cm / 3.5 * 2.9 * 2.4in
Package weight: 144g / 5.1oz

Package including:
1 * Digital Din-rail AC Voltmeter / Ammeter