Paul Frame
    Thank you very much for all your help regarding the SADT Concrete Hammer and hardness tester which are working well and we are very pleased with it.
Contact Person : Hu
Phone Number : 010-82600228

Bluetooth Oled Display Rebound Concrete Test Hammer

Place of Origin CHINA
Brand Name SADT
Certification CE, ISO9001, SGS
Model Number HT-225DS
Minimum Order Quantity 1
Packaging Details carrying case with carton
Delivery Time 2-5 days
Payment Terms Western Union, T/T, PAYPAL
Supply Ability 400 pcs per month

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Language English Display OLED
Accuray +/-0.1R Memory 1000 Parts, 256 Data For Each Part
Measuring Range 10-100N/mm2 Impact Energy 0.225kgm (2.207Nm)
Communication USB2.0 Or Bluetooth Certification ISO9001/CE/SGS
Warranty 1 Year Model HT-225DS
High Light

oled display concrete test hammer


oled rebound concrete test hammer


Bluetooth rebound concrete test hammer

Leave a Message
Product Description

Digital rebound Hammer Manufacturer Ht-225ds with OLED display Digital Part Separating From Main Body




HT-225DS is an innovation based on the HT-225D, which digital part (data processor) can be separated from main body on site and coupled with mechanical hammer easily by a simple push. So once the mechanical hammer brokes during testing, you can easily exchange another mechanical hammer and continue to work. Its mechanical hammer can work as normal analog test hammer without digital part. HT-225DS means more convenient, more cost saving and more flexible. HT-225DS has Bluetooth and data in memory can be downloaded to PC or micro printer wirelessly by Bluetooth or USB port by cable.


Key feature


High contrast OLED display
All setup can be made on site
Automatic calculating compressive strength
Automatic correc tion of impact direction
All data will be stored in memory
All data can be transferred to PC by USB cable or Bluetooth
Dual display for analogue ruler and digital value
Digital/Mechanical 2-in-1



Model HT-225DS
Type Digital / Mechanical 2-In-1
Display OLED Digital
Measuring Range 10-100N/Mm2
Accuracy ±0.1R
Impact Energy 0.225kgm (2.207Nm) For Testing Ordinary Building And Bridge Construction
Communication USB2.0 Or Bluetooth
Printing Bluetooth Micro Printer (Optional)
Storage 1000 Parts, 256 Data For Each Part
Operating Temperature -40º-60ºC
Power Supply 3.7V Li-Ion Rechargeable Battery Charged Via USB Port
Dimension (Mm) 280x75x60
Net Weight 1.1kg


Parameter Specification

Test times (test point), for each test point in each testing zone, according to Regulations, the test times are 16.

Testing zone, a test unit for testing concrete compressive strength of structure or component, with an appropriate area no more than 0.04㎡.

Equivalent value of concrete strength in testing zone refers to the concrete compressive strength value of the tested unit calculated based on the average rebound value and carbonization depth of testing zone via strength-measuring curve.

Test angle, casting surface, if the rebound apparatus is not in horizontal direction or the tested surface is non-concrete casting side, after setting the test angle and casting surface respectively, the apparatus can automatically conduct angular correction and casting surface correction of rebound value.

Carbonization depth: concrete carbonization depth is a kind of chemical corrosion of concrete, and the process reducing concrete alkalinity is called concrete carbonization. Carbonization depth value can be obtained according to the relevant methods of Regulations. When input carbonization depth, only have to input a number between 0.0mm and 6.0mm and then the apparatus can, according to the input carbonization depth value, calculate the concrete compressive strength value.

Test of pump concrete strength, set the curve as “national-pumping”. According to the Regulations, the apparatus calculate the corrected value of pump concrete strength and strength-measuring curve, and the calculated concrete compressive strength value is the strength value of pump concrete.

Strength-measuring curve, the apparatus has four optional curves in total, “national standard-pumping”, “national standard-non pumping”, “specific curve 1” and “specific curve 2”. 


Standard Package

HT-225DS main unit 1

Grinding wheel 1

USB cable 1

USB charger 1

Software CD 1

Operation manual 1

Carrying case 1





Bluetooth Oled Display Rebound Concrete Test Hammer 0

Bluetooth Oled Display Rebound Concrete Test Hammer 1

Bluetooth Oled Display Rebound Concrete Test Hammer 2

Bluetooth Oled Display Rebound Concrete Test Hammer 3


Bluetooth Oled Display Rebound Concrete Test Hammer 4