List Price: $60.36
Sale Price: $42.95
You save: $17.41 (29%)

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Description

This heavy duty mechanical time switch is designed for industrial, commercial and residential applications. The high horsepower rating is ideal for loads up to 40 amps resistive from 120-volts providing direct 24 hour time switch control of most loads. All Models Are Equipped With: One "ON" And One "OFF" Tripper 1 Circuit Standard On/Off Single Pole Single Throw 40 Amps, 4000 Watt Capacity, 120 Volts

Features

• Industrial, commercial and residential applications
• Highest HP ratings in the industry up to 40 amps
• Direct 24 hour control
• Provides 1 to 12 On/Off operations
• Equipped with one "On" and one "Off" tripper

Sale Price: $36.75

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Description

Highly stable and accurate readings with large LCD display. Designed for simple one-hand operation. Automatically calibrates to pH 4, 7, 10 buffers and can be adjusted to recognize non-standard buffers as well. Features hold function, and auto power off with low battery indicator. The case is IP65 water proof, and will float if accidentally dropped into the water. Comes with 4 button-cell batteries and a built-in electrode kept moist with a protective cap. Dim: 6 ½ x 1 ½ x 1" (165 x 35 x 32mm). Weight: 2 ½oz (68g).

Required Calibration Buffer Solutions Not Included (Copy & Paste Links Below Into Your Browser to Purchase)
-pH 4 Buffer Solution: http://amzn.to/azF6aN

-pH 7 Buffer Solution: http://amzn.to/anXkp4

-pH 10 Buffer Solution: http://amzn.to/dD5G0F

Copy and paste the following link into your browser address bar to see all Sper Scientific pH products on Amazon.com:

http://goo.gl/gaTY4

Features

• Range: 2~12
• Resolution: 0.1
• Accuracy: ±0.3 pH
• IP-65 water proof
• 1 YR Warranty

Sale Price: $230.00

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Description

Qualifies for FREE Shipping

Includes everything necessary for immediate field use: Basic pH Meter 840087, epoxy body sealed reference combination electrode with a BNC connector and a 2½' cable, pH buffers 4 and 7, deionized water, instructions, and a 9V battery. All components are contained in the meters own slim but protective hard-shell foam-lined case.

Copy and paste the following link into your browser address bar to see all Sper Scientific pH products on Amazon.com:

http://goo.gl/gaTY4

Features

• 2½' cable
• pH buffe 4 and 7
• Deionized water
• 5 YR Warranty

Sale Price: $5.94

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Sale Price: $8.91

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Sale Price: $12.29

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Description

400 watt 198 volt ED18 Mogul Screw (E39) Base 2,100K Clear Ecolux Lucalox High Pressure Sodium HID GE Light Bulb

Features

• Color/Finish: Clear
• Color Temperature: 2,100K
• Average Lifetime: 24000 hours
• Lumens (light output): 51000
• CRI: 22

List Price: $89.95
Sale Price: $49.75
You save: $40.20 (45%)

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Description

GE's enhanced specrtrum HPS bulb.

Features

• Lucalux PSL 600W HPS Bulb

Sale Price: $334.49

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Description

600w LU600/XOPSL/T/E40, Horticultural Lamp, T15 Bulb Type, E43 Base

Features

• GE Lucalox PSL/XO 600 Watt HPS Lamp

Sale Price: $7.95

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Description

TDS Calibration Solution for use with TDS testers measuring 1500 PPM. Note: Not for use with Milwaukee (Sharp) meters.

Features

• 1500 PPM Reference Solution 8OZ

Sale Price: $8.48

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Description

This is the same 1/2 in. Grommet found in the GH WaterFarm system and Plumbing Kit, made available separately for you do-it-yourselfers. When used correctly, each rubber grommet forms a water-tight seal.

Features

• Qty.1