Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Number	CJ6020
Output Signal	4-20mA
Housing Material	Stainless Steel 316L
Protection Rating	IP65 / Explosion-proof
Temperature Range	-40°C to +120°C
Humidity Range	0% to 100% RH
Installation Type	Duct-mounted with probe
Power Supply	24V DC (12-36V compatible)
Response Time	< 15 seconds
Application	HVAC, Industrial Processing, Warehousing

6 reviews

Anonymous

Mar 31, 2026

Rating: 4/5

Good value for industrial grade

Compared to other brands, this offers excellent specs for the price. The probe length is adequate for standard duct sizes. Calibration seems spot-on out of the box. Would recommend for any serious industrial setup.

Anonymous

Mar 28, 2026

Rating: 5/5

Exceeded expectations

Bought this to replace a failing plastic sensor that couldn't handle the heat. The metal construction of the CJ6020 is a game changer. It handles the temperature spikes in our manufacturing line without any drift in readings.

Anonymous

Mar 20, 2026

Rating: 5/5

Perfect for our HVAC upgrade

We installed six of these CJ6020 modules in our main ventilation ducts. The metal housing feels incredibly robust, and the 4-20mA signal is stable even with long cable runs. Installation was straightforward using the provided mounting flange.

Anonymous

Mar 12, 2026

Rating: 4/5

Solid industrial sensor

Great build quality and accurate readings compared to our handheld calibrator. The only reason for 4 stars is that the documentation could be clearer regarding the wiring diagram for non-standard controllers, but once figured out, it works flawlessly.

Anonymous

Mar 06, 2026

Rating: 5/5

Withstands harsh environments

Using this in a food processing facility where humidity is constantly high. The explosion-proof rating gives us peace of mind, and there has been zero corrosion on the metal casing after three months of operation.

Anonymous

Mar 04, 2026

Rating: 5/5

Reliable data transmission

The response time is impressive. We needed real-time monitoring for our climate control system, and this transmitter updates quickly without lag. The high-temperature resistance is a bonus for our boiler room applications.

5 FAQ

Q: Does this unit require external calibration?

A: No, the sensor is factory-calibrated. However, it features access points for field verification if your specific compliance standards require periodic checks.

Q: Is the probe length adjustable or fixed?

A: The CJ6020 comes with a fixed probe length of 200mm, which is suitable for most standard duct applications. Custom lengths can be requested for bulk orders.

Q: What is the thread size for the mounting connection?

A: The mounting flange uses a standard G1/2" thread connection, making it compatible with most industrial duct fittings and adapters.

Q: Can this be used in outdoor weather-exposed locations?

A: While the unit is IP65 rated and made of stainless steel, it is primarily designed for duct installation. For direct outdoor exposure to heavy rain or direct sunlight, we recommend adding a protective radiation shield.

Q: Is the output signal linear across the full range?

A: Yes, the 4-20mA output is fully linear corresponding to the configured temperature and humidity ranges, ensuring accurate integration with PLCs and SCADA systems.

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