Hand Held Refractometer
  Digital Refractometer
  PH meter
  PH Controller
   ORP Controller
  TDS meter,EC meter
  Electrode
  Hydrometer
  Thermometer
  Tachometer
  Moisture meter
  Humidity meter,
   Dew Point meter
  Digital Anemometer
  Lux Meter
  Sound level meter
 Thickness Meter,
   Coating Thickness Meter
  Spectrophotometer
  Surveying Instruments
  Halogen Leak Detector
  Electric Balance,
   Pocket scale


Digital Tachometer


Type Functions Picture
DT-2234A

PHOTO TACHOMETER (LED/Laser)
Model: DT2234A
Display: 5digits 18mm (0.6¡±) LCD
Accuracy: ¡À(0.05%+1digit)
Sampling Time: 0.5sec (over 120RPM)
Range select: Auto-Ranging
Memory: Last £¦#118alue, Max. £¦#118alue and Min. £¦#118alue
Test Range: 2.5 to 99,999RPM(r/min)
Resolution: 0.1RPM (2.5 to 999.9RPM)
1RPM (over 1,000RPM)
Detecting Distance: 50mm¡«250mm
Battery: 3¡Á1.5V AA battery 
Time Base: 6MHz Quartz crystal
Power consumption: Approx. 40mA
Dimension: 160¡Á72¡Á37mm

 
DT-6234B
 PHOTO TACHOMETER (Laser)
Model: DT6234B
Display: 5digits 18mm (0.6¡±) LCD
Total Test Range: 1¡«99,999
Accuracy: ¡À(0.05%+1digit£©
Sampling Time: 0.5sec (over 120RPM)
Range select: Auto-Ranging
Memory: Last £¦#118alue, Max. £¦#118alue and Min. £¦#118alue
Test Range: 2.5 to 99,999RPM(r/min)
Resolution: 0.1RPM (2.5 to 999.9RPM)
                    1RPM (over 1,000RPM)
Detecting Distance: 50mm¡«500mm
Time Base: 6MHz Quartz crystal
Power consumption: Approx. 55mA
Dimension: 160¡Á72¡Á37mm
Power: 4¡Á1.5V AA battery or to connect the DC 6V Regulated power supply 
Backlight Display: Yellow green backing LCD display
DT-6235B
 CONTACT TACHOMETER, LINE-SPEED METER, LINE-LENGTH METER
Model: DT6235B
Display: 5digits 18mm (0.6¡±) LCD
Accuracy: ¡À(0.05%+1digit£©
Sampling Time: 0.5sec (over 120RPM)
Range select: Auto-Ranging
Memory: Last £¦#118alue, Max. £¦#118alue and Min. £¦#118alue
Measuring Range: CONTACT TACH:  0.5 to 19,999RPM
SURPFACE SPEED (m/min): 0.05 to 1,999.9m/min
SURPFACE SPEED (ft/min): 0.2 to 6560ft/min
Resolution: CONTACT TACH: 0.1RPM (0.5 to 999.9RPM)
1RPM (over 1,000RPM)
SURFACE SPEED (m/min): 0.01m/min (0.05 to 99.99m/min)
0.1m/min (over 100m/min)
SURPFACE SPEED (ft/min): 0.1ft/min (0.1 to 999.9ft/min)
1ft/min (over 1,000ft/min)
Time Base: 6MHz Quartz crystal
Power consumption: Approx. 45mA
Power: 4¡Á1.5V AA battery or to connect DC6V regulated power supply
Backlight Display: Yellow green backing LCD display¡¡
DT-6236B
 PHOTO/CONTACT TACHOMETER(Laser),LINE-SPEED METER
Model: DT6236B
Display: 5digits 18mm (0.6¡±) LCD
Accuracy: ¡À(0.05%+1digit£©
Sampling Time: 0.5sec (over 120RPM)
Range select: Auto-Ranging
Memory: Last £¦#118alue, Max. £¦#118alue and Min. £¦#118alue
Measuring Range: PHOTO TACH: 2.5 to 99,999RPM
CONTACT TACH: 0.5 to 19,999RPM
SURPFACE SPEED (m/min): 0.05 to 1,999.9m/min
Resolution: PHOTO TACH: 0.1RPM (2.5 to 999.9RPM)
1RPM (over 1,000RPM)
CONTACT TACH: 0.1RPM (0.5 to 999.9RPM)
1RPM (over 1,000RPM)
SURFACE SPEED (m/min): 0.01m/min (0.05 to 99.99m/min)
0.1m/min (over 100m/min)
Detecting Distance: 50mm to 500mm (Laser)
Time Base: 6MHz Quartz crystal
Power consumption: Approx. 55mA
Power: 4¡Á1.5V AA battery or to connect the DC 6V regulated power supply
Backlight Display: Yellow green backlight LCD display
DT-838,DT-2234A
 (PHOTO/TOUCH TYPE)
MEASUREMENT RANGE:2.5¡«99,999r/min RESOLUTION:0.1/1
ACCURACY:¡À(0.05%n+1d)
MEMORY: MAX/MIN/LAST VALUE
POWER SUPPLY:4X1.5V AA(UM-3)BATTERY
DIMENSION:190X72X37mm
DT-2234B
 PHOTO TACHOMETER (LED)
Model: DT2234B
Display: 5digits 18mm (0.6¡±) LCD
Accuracy: ¡À(0.05%+1digit£©
Sampling Time: 0.5sec (over 120RPM)
Range select: Auto-Ranging
Memory: Last £¦#118alue, Max. £¦#118alue and Min. £¦#118alue
Test Range: 2.5 to 99,999RPM(r/min)
Resolution: 0.1RPM (2.5 to 999.9RPM)
¡¡¡¡¡¡¡¡¡¡1RPM (over 1,000RPM)
Detecting Distance: 50mm¡«250mm
Battery: 3¡Á1.5V AA battery 
Time Base: 6MHz Quartz crystal
Power consumption: Approx. 40mA
Dimension: 184¡Á76¡Á30mm
DT-2234C
 PHOTO TACHOMETER (laser)
Model: DT2234C
Display: 5digits 18mm (0.6¡±) LCD
Accuracy: ¡À(0.05%+1digit£©
Sampling Time: 0.5sec (over 120RPM)
Range select: Auto-Ranging
Memory: Last £¦#118alue, Max. £¦#118alue and Min. £¦#118alue
Test Range: 2.5 to 99,999RPM(r/min)
Resolution: 0.1RPM (2.5 to 999.9RPM)
                  1RPM (over 1,000RPM)
Detecting Distance: 50mm¡«500mm
Battery: 3¡Á1.5V AA battery 
Time Base: 6MHz Quartz crystal
Power consumption: Approx. 40mA
Dimension: 184¡Á76¡Á30mm
J-100
 (LASER TYPE)

1) Display: 5 Digits, 10mm (0.4¡å) LCD.
2) Measurement Range: 5-99,999RPM
3) Resolution: 0.1RPM£¨£¼1000RPM£© 1 RPM (¡Ý1000 RPM)
4) Accuracy(23¡À5¡æ): ¡À(0.05%+1d).
5) Test Distance: Approx. 8m.
6) Memory: Last, Maximum, Minimum Value.
7) Battery: 4¡Á1.5V AA (UM-3) battery.
8) Size: 170¡Á42¡Á31mm
J-200
 (PHOTO/TOUCH TYPE)

1£© Display: 5 Digits, 10mm (0.4¡å) LCD.
2£© Measurement Range: 5-99,999RPM
3) Resolution: 0.1RPM£¨£¼1000 RPM£© 1 RPM (¡Ý1000 RPM)
4) Accuracy(23¡À5¡æ): ¡À(0.05%+1d).
5) Memory: Last, Maximum, Minimum Value.
6) Battery: 4¡Á1.5V AA (UM-3) battery.
7) Size: 204.5¡Á42¡Á31mm
DT-2235A
CONTACT TACHOMETER
Model: DT2235A
Display: 5digits 18mm (0.6¡±) LCD
Accuracy: ¡À(0.05%+1digit£©
Sampling Time: 0.5sec (over 120RPM)
Range select: Auto-Ranging
Memory: Last £¦#118alue, Max. £¦#118alue and Min. £¦#118alue
Measuring Range: CONTACT TACH:  0.5 to 19,999RPM
SURPFACE SPEED (m/min): 0.05 to 1,999.9m/min
SURPFACE SPEED (ft/min): 0.2 to 6560ft/min
Resolution: CONTACT TACH: 0.1RPM (0.5 to 999.9RPM)
1RPM (over 1,000RPM)
SURFACE SPEED (m/min): 0.01m/min (0.05 to 99.99m/min)
0.1m/min (over 100m/min)
SURPFACE SPEED (ft/min): 0.1ft/min (0.1 to 999.9ft/min)
1ft/min (over 1,000ft/min)
Time Base: 6MHz Quartz crystal
Power consumption: Approx. 45mA
Power: 4¡Á1.5V AA battery or to connect DC6V regulated power supply
DT-2236B
 PHOTO/CONTACT TACHOMETER(Laser),LINE-SPEED METER
Model: DT2236B
Display: 5digits 18mm (0.6¡±) LCD
Accuracy: ¡À(0.05%+1digit£©
Sampling Time: 0.5sec (over 120RPM)
Range select: Auto-Ranging
Memory: Last £¦#118alue, Max. £¦#118alue and Min. £¦#118alue
Measuring Range: PHOTO TACH: 2.5 to 99,999RPM
CONTACT TACH: 0.5 to 19,999RPM
SURPFACE SPEED (m/min): 0.05 to 1,999.9m/min
Resolution: PHOTO TACH: 0.1RPM (2.5 to 999.9RPM)
1RPM (over 1,000RPM)
CONTACT TACH: 0.1RPM (0.5 to 999.9RPM)
1RPM (over 1,000RPM)
SURFACE SPEED (m/min): 0.01m/min (0.05 to 99.99m/min)
 0.1m/min (over 100m/min)
Battery: 4¡Á1.5V AA battery 
Detecting Distance: 50mm to 500mm (Laser)
Time Base: 6MHz Quartz crystal
Power consumption: Approx. 45mA
Measuring through the two tops, more conveniently and quickly
DT-2858
 (PHOTO/TOUCH TYPE)
MEASUREMENT RANGE ROTATIVE VELOCITY: 2.5¡«99,999r/min (PHOTO) 0.5¡«19,999r/min (TOUCH) SURFACE SPEED:0.05¡«1999.9m/min 0.2¡«6560ft/min
RESOLUTION:0.01/0.1/1
ACCURACY:¡À(0.05%n+1d)
MEMORY: MAX/MIN/LAST VALUE POWER SUPPLY:4X1.5V AA(UM-3)BATTERY DIMENSION:215X74X32mm
DT-2856
 (PHOTO/TOUCH TYPE)
MEASUREMENT RANGEROTATIVE VELOCITY:2.5¡«99,999r/min (PHOTO)2.5¡«19,999r/min (TOUCH)
RESOLUTION:0.1/1ACCURACY:¡À(0.05%n+1d)
MEMORY: MAX/MIN/LAST VALUEPOWER SUPPLY:4X1.5V AA(UM-3)BATTERY
DIMENSION:215X74X32mm
DT-2236
 (PHOTO/TOUCH TYPE)
MEASUREMENT RANGEROTATIVE VELOCITY:2.5¡«99,999r/min (PHOTO)0.5¡«19,999r/min (TOUCH)
SURFACE SPEED:0.05¡«1999.9m/min0.2¡«6560ft/min
RESOLUTION:0.01/0.1/1
ACCURACY:¡À(0.05%n+1d)
MEMORY: MAX/MIN/LAST VALUE
POWER SUPPLY:4X1.5V AA(UM-3)BATTERY
DIMENSION:215X65X38mm
DT-2857
 (LASER TYPE)
MEASUREMENT RANGE:2.5¡«99,999r/min RESOLUTION:0.1/1
ACCURACY:¡À(0.05%n+1d)
MEMORY: MAX/MIN/LAST VALUE
POWER SUPPLY:4X1.5V AA(UM-3)BATTERY
DIMENSION:145X74X32mm
DT-SM8237

PETROLIC ENGINE TACHOMETER
SM8237
Inductive type measure the engine speed by noncontact
Measuring the temperature cooling water in engine by contact
Testing the rotate speed of multi-cylinder in same time,or testing one of cylinder rotate speed
Testing the rotate speed used to 2 stokes and 4 strokes
Can set the cylinder in 2,3,4,5,6,8,12 or set the impulse
of each rotation
Memory the maximum value,minimum value and last value
Can store 300 testing data
Low battery alarming
Yellow-green back light
¡æ and ¨H Temperature switch function
Rotation Speed Range:100-19999RPM
Rotation Speed Resolution:¡À1RPM
¡¡¡¡¡¡¡¡¡¡¡¡ ¡À1RPM(100-11999r/min)
¡¡¡¡¡¡¡¡¡¡¡¡¡À2RPM(12000-20000r/min)
Temperature Range:0-200¡æ
Temperature Resolution:¡À0.5¡æ
Temperature Accuracy:¡À2¡æ

STROBOSCOPE
Type Functions Picture
DT-2350AP
MEASUREMENT RANGE:0¡«12000FPM
RESOLUTION:0.1/1
ACCURACY:¡À(0.05%n+1d)
POWER SUPPLY:AC220V OR 110V
DIMENSION:215X85X180mm¡¡
DT-2350BP
MEASUREMENT RANGE:0¡«40000FPM
RESOLUTION:0.1/1
ACCURACY:¡À(0.05%n+1)
POWER SUPPLY:AC 220V OR 110V
DIMENSION:215X85X180mm¡¡
DT-2350CP
MEASUREMENT RANGE:0¡«20000FPM
RESOLUTION:0.1/1
ACCURACY:¡À(0.05%n+1d)
POWER SUPPLY:AC220V OR 110V
DIMENSION:215X85X180mm¡¡
DT-2350DP
MEASUREMENT RANGE:0¡«30000FPM
RESOLUTION:0.1/1
ACCURACY:¡À(0.05%n+1d)
POWER SUPPLY:AC220V OR 110V
DIMENSION:215X85X180mm¡¡
DT-2239A
 STROBOSCOPE  
Model: DT2239A
Measuring TACH and vibratilite frequency by noncontact, digital controlling adjust the flash frequency and low power consumption.
Display: 4 digits LCD display with backlight
Measuring range: 60¡«9,999RPM
Accuracy: ¡À0.05%
Coarse/ Fine adjust amplitude:
<1000RPM Coarse adjust: ¡À10RPM Fine adjust: ¡À0.1RPM
¡Ý1000RPM Coarse adjust: ¡À100RPM
Fine adjust: ¡À1RPM
Resolution:
<1000RPM£º0.1RPM
¡Ý1000RPM£º1RPMPower: 4¡Á1.5V AA battery
Power: 4¡Á1.5V AA battery
Power consumption: approx. 60mA
Dimension: 195¡Á73¡Á38mm
Wight: Approx.200g
DT-2239B
 STROBOSCOPE  
Model: DT2239B
Measuring TACH and vibratilite frequency by noncontact, digital controlling adjust the flash frequency and low power consumption.
Display: 4 digits LCD display with backlight
Measuring range: 60¡«19,999RPM
Accuracy: ¡À0.05%
Coarse/ Fine adjust amplitude:
<1000RPM  Coarse adjust: ¡À10RPM 
¡¡¡¡¡¡¡¡¡¡¡¡Fine adjust:  ¡À0.1RPM
¡Ý1000RPM  Coarse adjust: ¡À100RPM
¡¡¡¡¡¡¡¡¡¡¡¡Fine adjust:  ¡À1RPM
Resolution:    <1000RPM£º0.1RPM
¡Ý1000RPM£º1RPM
Power: 4¡Á1.5V AA battery
Power consumption: approx. 60mA
Dimension: 195¡Á73¡Á38mm
Wight: Approx.200g

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