The pipeline is not connected, but the device shows pressure readings(not 0), even negative readings. What should I do?

Recalibrate the product by the zero calibration function.

Why is the app connection unsuccessful?

1. Does not have Bluetooth turned on.

Why does the device display '-----' instead of refrigerant type data?

All data for over 140 refrigerant types is stored in the app, not in the device itself. The device will only display the data when you select and update the commonly used list (18 types). Otherwise, you can only view the data within the app.

Manufacturer	Elitech
Brand	Elitech
Product Dimensions	6.35 x 12.7 x 400 cm; 700 g
Item model number	DMG-4B
Manufacturer part number	DMG-4B
Item Weight	700 g

– Digital Manifold Gauge, App Control Smart HVAC Gauges, Intelligent Manifold, OTA - Mechnical Manifold Terminator DMG-4B

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