Frienda Battery Meter - DC 12V-84V Alarm

Features: Setting Steps: 1. Long press the Set key, power supply to the product, enter the setup interface 2. Press the Set key to select the battery specification (Lead acid battery(P), Lithium battery (L), Fe battery(F)) 3. Short press the Function key to select the number of battery strings (increasing for set button, decreasing for function button) 4. Long press the Function key to set s mode. Switch button: you can press to check the battery capacity or real-time voltage and turn off. Alarm: the battery meter display will flash when the battery capacity is low. LCD display: PVC waterproof screen poterctor with bright back-light shows the results clearly. Fit for: 12V/ 24V/ 36V/ 48V/ 60V/ 72V/ 84V lead acid battery, ternary lithium battery, polymer lithium-ion battery, 3 -15 series lithium ion battery, storage battery, water battery and more. Specifications: Working voltage: DC 12-84V Working current: 5 mA max Working temperature: 0℃ - 40℃ Display: capacity/ voltage Back-light: as picture shows Material: ABS Product dimensions: 2.41 x 1.31 x 0.53 inches/ 61.3 x 33.3 x 13.5 mm Mounting hole dimensions: 2.3 x 1.12 inches/ 58.5 x 28.5 mm Package included: 2 x Battery meter with alarm