-30-0-30 Galvanometer Scientific Current Sensor Sensitive Electrical Ammeter Current Detector OOTDTY Analog Display Description:-30-0-30 mu; A galvanometer used to detect and measure electric current in physical experiment and teaching Specification:Material: Plastic + electronic component Sensitivity range: -30-0-30mu; ARosize: 133x97x100mm, You can mention them: le; 5%Application:Ambient temperature: 0°C+40°CCughtical ability: le; 85% Features:1. Simple indicator zeroing, high accuracy, easy operation and sensitivity to electric current detection.2. It can be widely used in education, laboratory and scientific applications and industrial areas.3. The transparent protective shell can prevent dust and reduce damage.4. The galvanometer reading is quite large and obvious, making it easy to read and recognize. Instructions:1. Check if the indicator is zero-aligned before use.2. When it is connected in series on the circuit, the higher end of the "G" terminal is used. Please pay attention to disconnecting the power supply when connecting the circuit.3. When measuring current, it can be connected in series in the circuit. If the indicator deviates to the right, it means that the current is flowing from the positive end of the circuit in the galvanometer. On the contrary. Package Included:1x Galvanometer