Description: 1.Model: BL140F 2. Sampling Method: Shunt 3.Voltage Measurement Range: 10-100V 4. Voltage Resolution Power Consumption: 0.01V 5. Current Measurement Range: 0~400A 6. Current Resolution Range: 0.01A 7. Capacity Display Range: 0%~100% 8. Power Measurement Range: 0~40KW 9. Functional Resolution: 0.01W 10.Ampere Hour Measurement Range: 0~9999.9AH 11. Capacity Resolution: 0.1AH 12. Bluetooth Communication Distance: Maximum 10 Meters Without Obstacles 13.Voltage Accuracy: ±1% 14. Current Accuracy: ±1%+0.1A 15.Monitor Power Consumption: About 0.75W 16. Screen Off Time: When Charging, The Screen Will Turn Off After 20 Seconds; When Discharging, I 15mA, The Screen Will Turn On; I less than 15ma And Time 20s, The Screen Will Turn Off Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Package: C: with Rearview Mirror Mounting Bracket Colour:As Shown Material:ABS+Metal Package Contents: 1x Sampler 1x Monitor 1x 3 Meter Communication Line 1x 1 Meter Red Positive Wire 1x English Instruction Manual 1x Rearview Mirror Mounting Bracket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. 1. Waterproof And Dustproof; Bidirectional Current Detection 2. Real-Time Capacity Detection; Screen Highlight Function 3. High-Definition Color Screen; All-Copper Screws And Ultra-Low Power Consumption 4. Mobile Phone Bluetooth Control; Automatic Carousel 5. 2 Control Methods, Monitor Control Or App View Control