MB7900 Sensor to 4-20mA Signal Converter

The MB7900 is an optional add-on for most WR and TankSensor models, enabling seamless integration with systems that require a 4-20mA output. This converter provides a 4-20mA signal through an M12 (8-pin) connection, available in both male and female connector versions, or via flying leads.

With the MB7900, there’s no need for third-party adapters, daughter boards, or additional workarounds to achieve 4-20mA compatibility—everything is built into the solution.

Note: This is not a standalone product. It must be selected as a configurable option for compatible sensors. Selecting "4-20mA" under output will automatically add the MB7900 Sensor to 4-20mA Signal Converter to the sensor's build.

The MB7940 EZ Mounting Hardware Kit is for use with our EZ sensors without housing options. The included hardware gives customers easy access for through-hole mounting.

*Sizes in the kit may vary depending on the material availability. If you have any questions please contact sensors@maxbotix.com*

The kit consists of:

4qty M3 x 6 Screws
4qty M3 Nuts
2qty M3 x 6 + 6 Male/Female Standoffs
2qty M3 x 8 + 6 Male/Female Standoffs (Current Stock Low)
2qty M3 x 10 + 6 Male/Female Standoffs
2qty M3 x 8 Female/Female Standoffs (Current Stock Low)
2qty M3 x 10 Female/Female Standoffs

*Sensors sold separately.  

Allows customers to easily through-hole mount WR sensors.

High Performance Shielded Cable. Cable sold by the foot as a single continuous section.

Used to help minimize spikes and noise found in the power supply to your devices.

Improves snow depth measurements and detection range for people with select sensors. Select this option on the applicable product page to purchase.

The MB7985 Radio Bridge connector allows LoRaWAN connectivity for any HR series sensor with TTL output.

MB7955 HR‑MaxTemp PCB and Heat Shrink

MB7956 MaxTemp cable sold per foot i.e. 1 ft = qty 1 (Purchased with the MB7955)

MB7957 HR-MaxTemp PCB, heat Shrink, and 3 feet of cable

MB7958 Assembled HR‑MaxTemp with 3 feet of cable

MB7959 Assembled HR‑MaxTemp with 6 feet of cable

MB7972 Assembled HR‑MaxTemp with 20 feet of cable

The HR-MaxTemp is designed to be used alongside the HR-MaxSonar sensors. The HR-MaxSonar sensor upon power-up will automatically detect an attached temperature sensor and begin to apply temperature compensation for the speed of sound changes to all range outputs.

MaxLidar™ MB8000: Precision LiDAR, 25m range, ±6 cm accuracy, 1kHz refresh rate, auto dust cleaning, IP5X-rated, Class 1 safe laser, industrial-grade, 3° FoV, low-power, UART/I2C interfaces.

The MB8450 Car Detection Sensor is a low‑cost vehicle detection sensor that uses ultrasonic technology for non-contact sensing.

The MB8460 Car Detection Sensor is a low‑cost vehicle detection sensor that uses ultrasonic technology for non-contact sensing.

The MB8480 Car Detection Sensor is a low‑cost vehicle detection sensor that uses ultrasonic technology for non-contact sensing.

The MB7962, MB7963, MB7964, and MB7965 Micro-B USB cables are USB2.0 compliant and backwards compatible with USB 1.0 standards.

Connector Header Through Hole 7 position 0.100″ (2.54mm)

Connector Header Through Hole, Right Angle 7 position 0.100″ (2.54mm)

This lists retired Products by Base Model 

MB7460 
MB7469 
MB7480 
MB7489

This lists retired Products by Base Model 

MB7760 
MB7769 
MB7780 
MB7789

Ultrasonic snow depth sensor for weather stations and environmental monitoring. 5 m maximum range, 1 mm resolution, and internal temperature compensation.

Standard (~6 Hz Update Rate) or condensation self-cleaning (~0.5 Hz Update Rate) variants. RS232 or TTL serial plus analog voltage and pulse-width outputs. 

Near-field handling is built in: targets closer than 500 mm report as 500 mm for predictable readings.

Connector Header Through Hole 7 position 0.100″ (2.54mm)