HAND HELD REFRACTOMETER. "ATAGO" MADE IN JAPAN.
M A S T E R S E R I E S
MASTER - α SERIES (WATER RESISTANT & AUTOMATIC TEMPERATURE COMPENSATION)
MODEL NO. MASTER - α MASTER - 2 α MASTER - 3 α MASTER - 4 α MASTER - 53 α MASTER - 10 α MASTER - 20 α
CAT NO. 2311 2321 2331 2341 2351 2371 2381
SCALE RANGE Brix 0.0 to 33.0% Brix 28.0 to 62.0% Brix 58.0 to 90.0% Brix 45.0 to 82.0% Brix 0.0 to 53.0% Brix 0.0 to 10.0% Brix 0.0 to 20.0%
A. T. C. AUTOMATIC TEMPERATURE COMPENSATION
MINIMUM SCALE Brix 0.2% Brix 0.5% Brix 0.1%
ACCURACY Brix 0.2% (10~30C) Brix 0.2% (10~40C) Brix 0.5% (10~30C) Brix 0.2% (10~30C)
REPEATABILITY Brix 0.1% Brix 0.25% Brix 0.1%
INTERNATIONAL IP 65 Water Resistant (except eyepiece)
PROTECTION CLASS
SIZE & WEIGHT 3.3 x 3.3 x 16.8 cm, 120 g 3.3 x 3.3 x 20.4 cm, 160 g
MASTER - T SERIES (AUTOMATIC TEMPERATURE COMPENSATION)
               
MODEL NO. MASTER - T MASTER - 2 T MASTER - 3 T MASTER - 4 T MASTER - 53 T MASTER - 10 T MASTER - 20 T
CAT NO. 2312 2322 2332 2342 2352 2372 2382
SCALE RANGE Brix 0.0 to 33.0% Brix 28.0 to 62.0% Brix 58.0 to 90.0% Brix 45.0 to 82.0% Brix 0.0 to 53.0% Brix 0.0 to 10.0% Brix 0.0 to 20.0%
A. T. C. AUTOMATIC TEMPERATURE COMPANSATION
MINIMUM SCALE Brix 0.2% Brix 0.5% Brix 0.1%
ACCURACY Brix 0.2% (10~30C) Brix 0.2% (10~40C) Brix 0.5% (10~30C) Brix 0.2% (10~30C)
REPEATABILITY Brix 0.1% Brix 0.25% Brix 0.1%
SIZE & WEIGHT 3.3 x 3.3 x 16.8 cm, 120 g 3.3 x 3.3 x 20.4 cm, 160 g
MASTER - M SERIES (M E T A L B O D Y)
               
MODEL NO. MASTER - M MASTER - 2 M MASTER - 3 M MASTER - 4 M MASTER - 53 M MASTER - 10 M MASTER - 20 M
CAT NO. 2313 2323 2333 2343 2353 2373 2383
SCALE RANGE Brix 0.0 to 33.0% Brix 28.0 to 62.0% Brix 58.0 to 90.0% Brix 45.0 to 82.0% Brix 0.0 to 53.0% Brix 0.0 to 10.0% Brix 0.0 to 20.0%
A. T. C. AUTOMATIC TEMPERATURE COMPANSATION
MINIMUM SCALE Brix 0.2% Brix 0.5% Brix 0.1%
SIZE & WEIGHT 3.3 x 3.3 x 20.4 cm, 160 g 3.3 x 3.3 x 16.8 cm, 120 g 3.3 x 3.3 x 20.4 cm, 160 g
MASTER - P SERIES (PLASTIC BODY)
MODEL NO. MASTER - P α MASTER - P M
CAT NO. 2391 2393
SCALE RANGE Brix 0.0 to 33.0% Brix 0.0 to 33.0%
A. T. C. YES NO
MINIMUM SCALE Brix 0.2%
ACCURACY Brix 0.2% (10~30C) -
REPEATABILITY Brix 0.1% -
INTERNATIONAL IP 65 Water Resistant NO
PROTECTION CLASS (except eyepiece)
SIZE & WEIGHT 3.3 x 3.3 x 20.4 cm, 100 g
S A L I N I T Y R E F R A C T O M E T E R
APPLICATION SALINITY SALINITY SALINITY SALINITY SALINITY SALINITY nD SCALE
MODEL NO. MASTER - S 28 α MASTER - S 28 M MASTER - S mill α MASTER - S mill M MASTER - S10 α MASTER - S10 M MASTER - R I
CAT NO. 2481 2483 2491 2493 2471 2473 2612
SCALE RANGE Sodium Chloride Sodium Chloride Salinity 0.0 to 100% Salinity 0.0 to 100% Sodium Chloride Sodium Chloride Refractive Index
0.0 to 28.0% 0.0 to 28.0% Specific Gravity Specific Gravity 0.0 to 10.0% 0.0 to 10.0% 1.435 to 1.520
      1.000 to 1.070 1.000 to 1.070      
A. T. C. YES NO YES NO YES NO NO
MINIMUM SCALE Brix 0.2% Salinity 1% Specific Gravity 0.001 Brix 0.1% Brix 0.1% 0.001
ACCURACY 0.2% (10 to 30 C) - Salinity 2% NO 0.2% (10 to 30C) - -
Specific Gravity 0.001
INTERNATIONAL IP 65 Water Resistant NO IP 65 Water Resistant NO IP 65 Water Resistant NO NO
PROTECTION CLASS (except eyepiece) (except eyepiece) (except eyepiece)
SIZE & WEIGHT 3.3 x 3.3 x 20.4 cm, 100 g 3 x 3 x 16.8cm, 120g
COOLANT / BATTERY COOLANT REFRACTOMETER
APPLICATION COOLANT APPLICATION BATTERY COOLANT
MODEL NO. MASTER - BR MODEL NO. MASTER - BC MASTER - BCF
CAT NO. 2930 CAT NO. 2931 2932
SCALE RANGE Ethylene glycol FREEZING Ethylene glycol Ethylene glycol
0 to 70%, 0 to -50C TEMP. SCALE 0 to -50C 32 to -60F
Propylene glycol   Propylene glycol Propylene glycol
0 to 70%, 0 to -50C   0 to -50C 32 to -50F
A. T. C. NO YES. NO NO
MINIMUM SCALE 5%, 5C MINIMUM SCALE 5C, 0.01 10F, 0.01
  BATTERY FLUID d20/20 1.150 to 1.300 1.150 to 1.300
INTERNATIONAL NO INTERNATIONAL NO NO
PROTECTION CLASS PROTECTION CLASS
SIZE & WEIGHT 3.3 x 3.3 x 16.8 cm, 90 g SIZE & WEIGHT 3.3 x 3.3 x 16.8 cm, 90 g
S P E C I A L S E R I E S R E F R A C T O M E T E R
APPLICATION LOW CONCENTRATION ALCOHOL HONEY SUGAR : FULL RANGE
MODEL NO. N - 8 α AL - 21 α HHR - 2 N HSR - 500 R - 5000
CAT NO. 2360 2361 2522 2340 2350
SCALE RANGE Brix 0.0 to 8.0% Ethyl alcohol 12.0 to 30.0% 3 - stage switching 3 - stage switching
concentration (water content in honey) Brix 0.0 to 90% nD 1.333 to 1.520
    0.0 to 21.0%      
    (ml/100ml) at 15C      
MINIMUM SCALE 0.1% 0.2% (Resolution 0.1%) 0.1% 0.2% 0.001
THERMOMETER NO NO Temp. Comp. Scale Temp. Comp. Scale 5 to 40C
      +1.0 to -2.3 +1.6 to -1.0  
SIZE & WEIGHT 4 x 4 x 21 cm, 260 g 4 x 4 x 17 cm, 260 g 4 x 4 x 20 cm, 600 g
MASTER - H SERIES (WATER RESISTANT, A. T. C. & HEAT RESISTANT)
D E S I G N E D F O R M E A S U R I N G H I G H T E M P E R A T U R E S A M P L E S
MODEL NO. MASTER - 50 H MASTER - 80 H MASTER - 93 H MASTER - 100 H
CAT NO. 2354 2364 2374 2384
SCALE RANGE Brix 0.0 to 50.0% Brix 30.0 to 80.0% Brix 45.0 to 93.0% Brix 60.0 to 100.0%
A. T. C. AUTOMATIC TEMPERATURE COMPANSATION
MINIMUM SCALE Brix 0.5%
ACCURACY Brix 0.5%
REPEATABILITY Brix 0.25%
INTERNATIONAL IP65 Water Resistant (except eyepiece)
PROTECTION CLASS
SIZE & WEIGHT 3.3 x 3 x 16.8 cm, 120 g