Can i add more sensors? I can see on the photos that controller has 5 entrances for sensors, but is sold with 4. Is that mean that i can connect 5th s

You have a power inlet, a buzzer inlet, & 4 sensor inlets.

Would painting these impact the sensor?

Most reviews that I read recommended not painting the sensors. If you were to try it, I would suggest a light coat applied by an aerosol paint, not the typical brush-on touch-up paint that tends to go on thick. The sensor's range is already pretty short - about 5 feet - so I would be concerned that painting would impact the already limited sensitivity.

Do they fit on a 2013 ram 1500 steel bumper ?

This fits any car or truck. As far as the steel bumper. If you can drill through it it will work. Not sure if the drill bit that comes with will go through but you can buy a steel bit at Harbor Freight if it doesn't. .

1 and then times when you first put it in reverse?

Your question does not make sense, but it works.

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Car Reverse Backup Parking Sensor Radar System, Buzzer beeps, Detection Distance:30~150CM, Waterproof Sensors (22mm Diameter 2.3M Cable) 4 Packs X60D (Black)

Product ID: 288201740

Details

Band frequency supported
34.7 GHz GHz
Brand
Frostory
Display type
Beeping
Power source
Corded
Voltage
16 Volts

💧Waterproof & anti-freeze sensors (-40°C to +80°C)

📡Double CPU & upgraded chip for 0-2.5m detection

🔊Progressive buzzer beeps for obstacle proximity

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£11.24

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Description

🚗🔊 Park Like a Pro, Every Time!

ALL WEATHER WARRIOR - Waterproof sensors built to withstand extreme temperatures from -40°C to +80°C—rain or shine, your parking assistant never quits.
INTUITIVE AUDIO ALERTS - Dynamic buzzer beeps increase as you approach obstacles, giving you real-time feedback to avoid costly dents.
SLEEK DISCREET DESIGN - Compact 22mm diameter sensors blend seamlessly with your vehicle’s aesthetics while delivering maximum coverage.
EFFORTLESS DIY INSTALLATION - Plug-and-play design with 2.3m cables and double-sided tape means you’re ready to park smarter in minutes.
PRECISION PARKING ZERO GUESSWORK - Advanced dual-CPU radar tech detects obstacles up to 2.5 meters away for flawless reverse parking.

The Frostory Car Reverse Backup Parking Sensor System features four waterproof sensors with a 22mm diameter and 2.3m cables, powered by a double CPU and upgraded chip for precise obstacle detection from 30 to 150 cm (up to 2.5m). Designed to operate in extreme temperatures (-40°C to +80°C), it provides progressive buzzer alerts for safe, confident parking in any weather. Easy to install and compatible with 12-16V systems, this radar system is a must-have for millennial professionals seeking smart, reliable vehicle tech.

Specifications

ASIN	B074LZY71B
Best Sellers Rank	#109,372 in Electronics ( See Top 100 in Electronics ) #155 in Car Parking Assistances
Brand	Frostory
Country of Origin	China
Display Type	Beeping
Frequency Bands Supported	34.7 GHz, 24.125 GHz
Item Dimensions L x W x H	8.7L x 6W x 2H centimeters
Item Weight	300 Grams
Manufacturer	Frostory
Mfr Part Number	4350440776
Model Number	13
Power Source	Corded Electric
UPC	600748940653
Unit Count	4 Count
Voltage	16 Volts
Warranty Description	1

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