Test Kits & Thermometers

Extech 445713 Big Digit Indoor/Outdoor Hygro-Thermometer

Extech 445713 Big Digit Indoor...

$33.00
Ambient Weather WS-19 Wireless 8-Channel Floating Pool and Spa Thermometer with Two Remote Sensors

Ambient Weather WS-19 Wireless...

$69.99
Aquascape - KoiMedic Salt Meter - Electronic Pond Water Salt Level Tester

Aquascape - KoiMedic Salt Mete...

$76.50
Solaxx Salt Dip 2-in-1 Salt Water Electronic Water Tester

Solaxx Salt Dip 2-in-1 Salt Wa...

$99.95
Blue Wave NA3370 Digital Wireless Pool Thermometer

Blue Wave NA3370 Digital Wirel...

$44.74
Ambient Weather WS-18 Wireless 8-Channel Floating Pool and Spa Thermometer with Remote Thermo-Hygrometer

Ambient Weather WS-18 Wireless...

$44.26
Ambient Weather F007PF 8-Channel Wireless Pool and Spa Remote Sensor for WS-07, WS-08, WS-09 Weather Stations

Ambient Weather F007PF 8-Chann...

$25.99
Ambient Weather WS-20 Wireless 8-Channel Floating Pool and Spa Thermometer with Outdoor Remote Thermometer

Ambient Weather WS-20 Wireless...

$54.99
Extech 401014 Big Digit Indoor/Outdoor Thermometer

Extech 401014 Big Digit Indoor...

$22.67
Ambient Weather WS-14-X2 Wireless 8-Channel Floating Pool and Spa Thermometer with Two Remote Sensors

Ambient Weather WS-14-X2 Wirel...

$61.98
HDE Hydroponic Aquarium Pool & Pond Digital pH Meter Tester Pocket Pen

HDE Hydroponic Aquarium Pool &...

$8.49
Derby Duck Floating Pool Thermometer

Derby Duck Floating Pool Therm...

$9.99
RHX Digital TDS-3 Meter test Filter Water Quality Purity TDS3 Temp ppm Tester New

RHX Digital TDS-3 Meter test F...

$4.50
HM Digital AP-1 + 342 ppm Solution, AquaPro TDS/ºC/ºF Meter/Tester/Thermometer

HM Digital AP-1 + 342 ppm Solu...

$29.95
Onegood Digital LCD TDS Meter Tester Water Filter PPM Purity Test

Onegood Digital LCD TDS Meter ...

$7.99
3 Pcs ZPC6 Aquarium Liquid Water Level Floating Sensor Switch

3 Pcs ZPC6 Aquarium Liquid Wat...

$10.35
HDE Digital TDS (Total Dissolved Solids) Water Purity Quality Tester Meter ppm Pen

HDE Digital TDS (Total Dissolv...

$8.95
Luxmo Digital PH Meter and TDS Water Temperature Purity Salinity PPM Pen for Hydroponic Pool Aquarium Fish Tank Water Quality

Luxmo Digital PH Meter and TDS...

$17.40
Mudder Water Quality Test Kit - Each 1 Piece of pH Meter(Yellow) & TDS(Grey) Meter (Yellow PH + Gray TDS)

Mudder Water Quality Test Kit ...

$21.99
Pool Thermometer- Tropical Fish

Pool Thermometer- Tropical Fis...

$14.99