what is the difference between the yellow and the blue ?

If the “blue” reference is the thermocouple with white and blue sheathing, it’s only the material covering the K thermocouple. Both sets are “K” thermocouple.

I need to order separate k-probes in the 500c range, doe this use the standard "mini-connector" for the probes?

Yes, it is mini K-Type connector with flat-pin.

Is the included 1.9V battery rechargable?

Hi, it comes with 9V battery and it's not rechargeable

How long are the wires for probes or other type?

Hi, the cable length of the Bead-type K-type Thermocouples is about 95cm/37.4" and for the Stainless Steel Type K-type Thermocouples is 90cm/35.4".

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Thermocouple Thermometer Digital K Type Dual Channel Thermometer HVAC Temperature Meter with 4 Thermocouples, MAX/MIN/AVG Temperature Measurement, -50~1300°C (-58~2372°F)

Thermocouple Thermometer Digital K Type Dual Channel Thermometer HVAC Temperature Meter with 4 Thermocouples, MAX/MIN/AVG Temperature Measurement, -50~1300°C (-58~2372°F)

Product ID: 115944645

Details

Age Range (Description)
Adult
Brand
Gain Express
Color
Blue1
Connectivity Technology
Usb
Display Type
Digital
Included Components
Battery Pouch

🔢Dual channel with differential temp display

🌡️Wide temp range -50°C to 1300°C

🛡️Silicon rubber holster for drop protection

257993Fr

Duties & taxes included

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Sold byAmazon CongoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌟 Measure Twice, Impress Once: The Ultimate Dual-Channel Thermometer for the Modern Pro

READY FOR ACTION - Comes with 4 thermocouples including stainless steel probes—versatility that keeps you ahead on any job.
DUAL CHANNEL MASTERY - Simultaneously monitor two temperatures with T1, T2, and differential display for instant comparative insights.
BUILT TO LAST PROTECT - Durable silicon rubber holster guards your device from accidental drops, extending its lifespan in the field.
USER FRIENDLY PORTABLE - Battery-powered with foldable stand and intuitive 6-button interface—perfect for pros and beginners alike.
PRECISION AT YOUR FINGERTIPS - Accurate readings from -50°C to 1300°C (-58°F to 2372°F) covering all your HVAC and industrial needs.

The Gain Express 68022_2P Digital K-Type Thermocouple Thermometer offers professional-grade temperature measurement from -50°C to 1300°C with four included thermocouples. Featuring dual-channel display with differential temperature calculation, a rugged silicon rubber holster, and a user-friendly interface, it’s designed for HVAC, industrial, and scientific applications requiring precision, durability, and portability.

Specifications

ASIN	B07P8NWH67
Additional Features	Selectable °C, °F & K, Auto Shut-OFF
Age Range Description	Adult
Best Sellers Rank	#44,298 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #20 in Lab Digital Thermometers
Brand Name	Gain Express
Color	Blue1
Connectivity Technology	Usb
Customer Reviews	4.1 4.1 out of 5 stars (959)
Display Type	Digital
Included Components	Battery, Pouch, User Guide
Indoor Outdoor Usage	Indoor
Inner Material	Stainless Steel
Item Length	5.87 Inches
Manufacturer	Gain Express Holdings Ltd.
Model	68022_2P
Model Name	68022_2P
Number of Batteries	1 9V batteries required.
Outer Material	Stainless Steel
Part Number	68022_2P
Power Source	Battery Powered
Product Care Instructions	Wipe Clean
Resolution	0.1 degrees_celsius
Response Time	0.5 seconds
Reusability	Rechargeable
Style Name	Contemporary
UPC	600316549844
Unit Count	1.0 Count
Upper Temperature Range	1300 Degrees Celsius

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257993Fr

Duties & taxes included

In stock

Sold byAmazon CongoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Congo.

Secure transaction

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