WATER LEVEL INDICATOR 3 LEVEL
TWO TONE SIGNAL GENERATOR
IN CIRCUIT TRANSISTOR CHECKER
SOIL MOISTURE INDICATOR
CONTINUITY METER
SIMPLE LUX METER
METAL DETECTOR
Point your Remote Infrared appliance or TV controller at the IR sensor on the FK933
The FK935 is a useful, low-cost circuit that is set to a threshold of 38oC which, if exceeded, will sound an alarm.
12V BATTERY CHECKER 8 LED
LIE DETECTOR
WATER CHECKER
NON-CONTACT VOLTAGE DETECTOR
NON-CONTACT ALARM AC VOLTAGE DETECTOR
TEMPERATURE CONTROLLER-25 TO 100 C
TEMPERATURE AND HUMIDITY CONTROLLER WITH SENSOR